2014 Jeep Compass Limited

2014 ENGINE 2.4L - Service Information - Compass & Patriot

2014 ENGINE

2.4L - Service Information - Compass & Patriot

DESCRIPTION
DESCRIPTION

The 2.4 Liter (148 cu. in.) in-line four cylinder engine is a double over head
camshaft design with mechanical lash tappets and four valves per cylinder
design. This engine is NOT free-wheeling; meaning that the pistons will contact
the valves in the event of a timing chain failure.
The cylinders are numbered from front of the engine to the rear. The firing order
is 1-3-4-2.

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Fig. 1: Locating Engine Serial Number
Courtesy of CHRYSLER GROUP, LLC
The engine serial number (1) is located on the rear of the cylinder block behind
the oil pan. The serial number is visible with the oil pan in place. The serial
number contains engine build date information.
DIAGNOSIS AND TESTING
INTRODUCTION

Engine diagnosis is helpful in determining the causes of malfunctions not

detected and remedied by routine maintenance.

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These malfunctions may be classified as either mechanical (e.g., a strange noise),

or performance (e.g., engine idles rough and stalls).

Refer to the Engine Mechanical and the Engine Performance diagnostic charts,
for possible causes and corrections of malfunctions. Refer to MECHANICAL
and PERFORMANCE .

For fuel system diagnosis. Refer to FUEL SYSTEM .

Additional tests and diagnostic procedures may be necessary for specific engine
malfunctions that cannot be isolated with the Service Diagnosis charts.
Information concerning additional tests and diagnosis is provided within the
following:

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Cylinder Compression Pressure Test: Refer to CYLINDER
COMPRESSION PRESSURE TEST.
Cylinder Combustion Pressure Leakage Test: Refer to CYLINDER
COMBUSTION PRESSURE LEAKAGE TEST.
Engine Cylinder Head Gasket Failure Diagnosis: Refer to DIAGNOSIS
AND TESTING - CYLINDER HEAD GASKET.
Intake Manifold Leakage Diagnosis: Refer to DIAGNOSIS AND
TESTING - INTAKE MANIFOLD LEAKS.
Mechanical Valve Tappet Noise Diagnosis: Refer to DIAGNOSIS AND
TESTING - MECHANICAL VALVE TAPPET NOISE DIAGNOSIS.
Engine Oil Leak Inspection: Refer to ENGINE OIL LEAK
INSPECTION.
PERFORMANCE

CONDITION POSSIBLE CAUSE CORRECTION

ENGINE WILL NOT 1. Weak battery. 1. Test battery. Charge or
START replace as necessary. Refer
to DIAGNOSIS AND
TESTING .
2. Corroded or loose 2. Clean and tighten battery
battery connections. connections. Apply a coat
of light mineral grease to
terminals.

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3. Faulty starter. 3. Test starting system.

Check for codes. (Refer to
DIAGNOSIS AND
TESTING )
4. Faulty coil(s) or 4. Test and replace as
control unit. needed. (Refer to
CHECKING THE
IGNITION COIL
OPERATION )
5. Incorrect spark 5. Set gap. Refer to
plug gap. SPECIFICATIONS .
6. Contamination in 6. Clean system and replace
fuel system. fuel filter.

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7. Faulty fuel pump. 7. Test fuel pump and
replace as needed. (Refer to
FUEL SYSTEM )
8. Incorrect engine 8. Check for a skipped
timing. timing belt/chain.
ENGINE STALLS OR 1. Idle speed too low. 1. Test minimum air flow.
IDLES ROUGH (Refer to Appropriate
Diagnostic Information)
2. Incorrect fuel 2. (Refer to Appropriate
mixture. Diagnostic Information)
3. Intake manifold 3. Inspect intake manifold,
leakage. manifold gasket, and
vacuum hoses.
4. Faulty ignition coil 4. Test and replace as
(s). necessary. (Refer to
Appropriate Diagnostic
Information)
5. Remove OCV and
5. Contamination in
inspect for contamination.
Oil Control Valve
Replace OCV if
(OCV).
contaminated.
ENGINE LOSS OF 1. Dirty or 1. Clean plugs and set gap.
POWER incorrectly gapped
plugs.

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2. Contamination in 2. Clean system and replace

fuel system. fuel filter.
3. Faulty fuel pump. 3. Test and replace as
necessary. (Refer to
Appropriate Diagnostic
Information)
4. Incorrect valve 4. Correct valve timing.
timing.
5. Leaking cylinder 5. Replace cylinder head
head gasket. gasket.
6. Low compression. 6. Test compression of each
cylinder.
7. Burned, warped, or 7. Replace valves.

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pitted valves.
8. Plugged or 8. Perform exhaust
restricted exhaust restriction test. Install new
system. parts, as necessary. Refer to
DIAGNOSIS AND
TESTING .
9. Faulty ignition coil 9. Test and replace as
(s). necessary. (Refer to
CHECKING THE
IGNITION COIL
OPERATION )
ENGINE MISSES ON 1. Dirty or 1. Clean spark plugs and set
ACCELERATION incorrectly gapped gap.
spark plugs.
2. Contamination in 2. Clean fuel system and
Fuel System. replace fuel filter.
3. Burned, warped, or 3. Replace valves.
pitted valves.
4. Faulty ignition coil 4. Test and replace as
(s). necessary. (Refer to
CHECKING THE
IGNITION COIL
OPERATION )
ENGINE MISSES AT 1. Dirty or incorrect 1. Clean spark plugs and set

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HIGH SPEED spark plug gap. gap.

2. Faulty ignition coil 2. Test and replace as
(s). necessary. (Refer to
CHECKING THE
IGNITION COIL
OPERATION
3. Dirty fuel injector 3. Test and replace as
(s). necessary. (Refer to FUEL
SYSTEM )
4. Contamination in 4. Clean system and replace
fuel system. fuel filter.
MECHANICAL

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CONDITION POSSIBLE CORRECTION
CAUSES
VALVETRAIN NOISE 1. High or low oil 1. Check and correct
level in crankcase. engine oil level.
2. Thin or diluted oil. 2. Change oil to correct
viscosity.
3. Thick oil 3. (a) Change engine oil
and filter.
(b) Run engine to
operating temperature.
(c) Change engine oil and
filter again.
4. Low oil pressure. 4. (a) Check and correct
engine oil level.
(b) Check pressure
regulating valve.
5. Worn cam lobe. 5. Install new camshaft.
6. Worn tappet 6. Install new select fit
bucket. tappet bucket.
7. Worn valve guides. 7. Replace cylinder head.
8. Excessive runout of 8. Grind valve seats and
valve seats on valve replace valves.
faces.

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CONNECTING ROD 1. Insufficient oil 1. Check engine oil level.

NOISE supply.
2. Low oil pressure.
2. Check engine oil level.
Inspect oil pump relief
valve and spring.
3. Thin or diluted oil. 3. Change oil to correct
viscosity.
4. Thick oil 4. (a) Change engine oil
and filter.
(b) Run engine to
operating temperature.
(c) Change engine oil and
filter again.

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5. Excessive bearing 5. Measure bearings for
clearance. correct clearance. Repair
as necessary.
6. Connecting rod 6. Replace crankshaft or
journal out-of-round. grind surface.
7. Connecting rod 7. Replace connecting
out-of-round. rod.
8. Misaligned 8. Replace bent
connecting rods. connecting rods.
MAIN BEARING NOISE 1. Insufficient oil 1. Check engine oil level.
supply.
2. Low oil pressure. 2. Check engine oil level.
Inspect oil pump relief
valve and spring.
3. Thin or diluted oil. 3. Change oil to correct
viscosity.
4. Thick oil 4. (a) Change engine oil
and filter.
(b) Run engine to
operating temperature.
(c) Change engine oil and
filter again.
5. Excessive bearing 5. Measure bearings for

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clearance.
correct clearance. Repair
as necessary.
6. Excessive end play. 6. Check thrust bearing
for wear on flanges.
7. Crankshaft journal 7. Replace crankshaft or
out-of-round or worn. grind journals.
8. Loose flywheel or 8. Tighten to correct
torque converter. torque.
OIL PRESSURE DROP 1. Low oil level. 1. Check engine oil level.
2. Faulty oil pressure 2. Install new sending
sending unit. unit.
3. Low oil pressure. 3. Check sending unit and
main bearing oil

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clearance.
4. Clogged oil filter. 4. Install new oil filter.
5. Worn parts in oil 5. Replace balance shaft
pump. module.
6. Thin or diluted oil. 6. Change oil to correct
viscosity.
7. Oil pump relief 7. Remove valve and
valve stuck. inspect, clean, or replace.
8. Excessive bearing 8. Measure bearings for
clearance. correct clearance.
OIL LEAKS 1. Misaligned or 1. Replace gasket(s).
deteriorated gaskets.
2. Loose fastener, 2. Tighten, repair or
broken or porous replace the part.
metal part.
3. Misaligned or 3. Replace as necessary.
deteriorated cup or
threaded plug.
OIL CONSUMPTION OR 1. PCV system 1. Check system and
SPARK PLUGS malfunction. repair as necessary. Refer
FOULED to VALVE, POSITIVE
CRANKCASE
VENTILATION (PCV),

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DIAGNOSIS AND
TESTING .
2. Worn, scuffed or 2. Hone cylinder bores.
broken rings. Install new rings.
3. Carbon in oil ring 3. Install new rings.
slots.
4. Rings fitted too 4. Remove rings and
tightly in grooves. check grooves. If groove
is not proper width,
replace piston.
5. Worn valve guide 5. Replace cylinder head.
(s).
6. Valve stem seal(s) 6. Replace seal(s).

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worn or damaged.
CYLINDER COMBUSTION PRESSURE LEAKAGE TEST

The combustion pressure leakage test provides an accurate means for

determining engine condition.
Combustion pressure leakage testing will detect:

Exhaust and intake valve leaks (improper seating).

Leaks between adjacent cylinders or into water jacket.
Any causes for combustion/compression pressure loss.

WARNING: Do not remove the pressure cap with the system

hot and under pressure because serious burns
from coolant can occur.

1. Check the coolant level and fill as required. DO NOT install the pressure
cap.
2. Start and operate the engine until it attains normal operating temperature,
then turn the engine OFF.
3. Clean spark plug recesses with compressed air.
4. Remove the spark plugs.
5. Remove the oil filler cap.

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6. Remove the air cleaner.

7. Calibrate the tester according to the manufacturer's instructions. The shop
air source for testing should maintain 483 kPa (70 psi) minimum, 1, 379 kPa
(200 psi) maximum, with 552 kPa (80 psi) recommended.
8. Perform the test procedures on each cylinder according to the tester
manufacturer's instructions. While testing, listen for pressurized air escaping
through the throttle body, tailpipe and oil filler cap opening. Check for
bubbles in the coolant.
9. All gauge pressure indications should be equal, with no more than 25%
leakage per cylinder.
10. FOR EXAMPLE: At 552 kPa (80 psi) input pressure, a minimum of 414
kPa (60 psi) should be maintained in the cylinder.

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CYLINDER COMPRESSION PRESSURE TEST

The results of a cylinder compression pressure test can be utilized to diagnose

several engine malfunctions.

Ensure the battery is completely charged and the engine starter motor is in good
operating condition. Otherwise the indicated compression pressures may not be
valid for diagnosis purposes.

1. Check engine oil level and add oil if necessary.

2. Drive the vehicle until engine reaches normal operating temperature. Select
a route free from traffic and other forms of congestion, observe all traffic
laws, and accelerate through the gears several times briskly.
3. Remove engine cover.
4. Disconnect coil electrical connectors and remove coils.
5. Remove all spark plugs from engine. As spark plugs are being removed,
check electrodes for abnormal firing indicators such as fouled, hot, oily, etc.
Record cylinder number of spark plug for future reference.
6. Disconnect injector electrical connectors.
7. Insert compression gauge adaptor (special tool #8116, Adapter, Pressure
PEP) or the equivalent, into the #1 spark plug hole in cylinder head. Connect
the 0-500 psi (Blue) pressure transducer CH7059 with cable adaptors to the
DRBIII®. For Special Tool identification, Refer to SPECIAL TOOLS .
8. Crank engine until maximum pressure is reached on gauge. Record this

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pressure as #1 cylinder pressure.

9. Repeat the previous step for all remaining cylinders.
10. Compression should not be less than 689 kPa (100 psi) and not vary more
than 25 percent from cylinder to cylinder.
11. If one or more cylinders have abnormally low compression pressures, repeat
the compression test.
12. If the same cylinder or cylinders repeat an abnormally low reading on the
second compression test, it could indicate the existence of a problem in the
cylinder in question. The recommended compression pressures are to be
used only as a guide to diagnosing engine problems. An engine should
not be disassembled to determine the cause of low compression unless
some malfunction is present.

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OIL CONSUMPTION TEST AND DIAGNOSIS

The following diagnostic procedures are used to determine the source of

excessive internal oil consumption, these procedures and tests apply to vehicles
with 50, 000 miles or less.

NOTE: Engine oil consumption may be greater than normal

during engine break-in. Repairs should be delayed until
vehicle has been driven at least 7, 500 miles.

Severe service (high ambient temperature, short trips, heavy loading, trailer
towing, taxi, off-road, or law enforcement use) may result in greater oil
consumption than normal.
Sustained high speed driving and high engine RPM operation may result in
increased oil consumption.

Failure to comply with the recommended oil type and viscosity rating, as
outlined in the owner's manual, may impact oil economy as well as fuel
economy.
Oil consumption may increase with vehicle age and mileage due to normal
engine wear.

NOTE: Because a few drops of external oil leakage per mile can
quickly account for the loss of one quart of oil in a few

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hundred miles, be certain there is no external engine oil

leaks present.

Oil leakage is not the same as oil consumption and all external leakage
must be eliminated before any action can be taken to verify and/or
correct oil consumption complaints.
Verify that the engine has the correct oil level dipstick and dipstick tube
installed.
Verify that the engine is not being run in an overfilled condition. Check
the oil level 15 minutes after a hot shutdown with the vehicle parked on
a level surface. In no case should the level be above MAX or the FULL
mark on the dipstick.

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OIL CONSUMPTION TEST

1. Check the oil level at least 15 minutes after a hot shutdown.

2. If the oil level is low, top off with the proper viscosity and API service level
engine oil. Add one bottle of MOPAR® 4-In-1 Leak Detection Dye into the
engine oil.
3. Tamper proof the oil pan drain plug, oil filter, dipstick and oil fill cap.
4. Record the vehicle mileage.
5. Instruct the customer to drive the vehicle as usual.
6. Ask the customer to return to the servicing dealer after accumulating 500
miles, Check the oil level at least 15 minutes after a hot shutdown. If the oil
level is half way between the "FULL" and "ADD" mark continue with the
next step.
7. Using a black light, re-check for any external engine oil leaks, repair as
necessary, if no external engine oil leaks are present, continue with oil
consumption diagnosis.
OIL CONSUMPTION DIAGNOSIS

1. Check the positive crankcase ventilation (PCV) system. Make sure the
system is not restricted and the PCV valve has the correct part number and
correct vacuum source (18-20 in. Hg at idle below 3000 ft. above sea level is
considered normal).
2. Perform a cylinder compression test and cylinder leak down test using the
standard leak down gauge following manufacturers suggested best practices.

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NOTE: Verify the spark plugs are not oil saturated. If the
spark plugs are oil saturated and compression is
good it can be assumed the valve seals or valve
guides are at fault.

3. If one or more cylinders have more than 15% leak down further engine tear
down and inspection will be required.
TOP 19 REASONS THAT MAY LEAD TO ENGINE OIL CONSUMPTION

1. Tapered and Out-of-Round Cylinders

The increased piston clearances permit the pistons to rock in the worn
cylinders. While tilted momentarily, an abnormally large volume of oil is

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permitted to enter on one side of the piston. The rings, also tilted in the
cylinder, permit oil to enter on one side. Upon reversal of the piston on each
stroke, some of this oil is passed into the combustion chamber.
2. Distorted Cylinders

This may be caused by unequal heat distribution or unequal tightening of

cylinder head bolts. This condition presents a surface which the rings may
not be able to follow completely. In this case, there may be areas where the
rings will not remove all of the excess oil. When combustion takes place,
this oil will be burned and cause high oil consumption.

3. Improper operation of "PCV "system

The main purpose of the Positive Crankcase Ventilation (PCV) valve is to

recirculate blow-by gases back from the crankcase area through the engine
to consume unburned hydrocarbons. The PCV system usually has a one way
check valve and a make up air source. The system uses rubber hoses that
route crankcase blow by gases to the intake manifold. Vacuum within the
engine intake manifold pulls the blow by gases out of the crankcase into the
combustion chamber along with the regular intake air and fuel mixture.
The PCV system can become clogged with sludge and varnish deposits and
trap blow by gases in the crankcase. This degrades the oil, promoting
additional formation of deposit material. If left uncorrected, the result is
plugged oil rings, oil consumption, rapid ring wear due to sludge buildup,

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ruptured gaskets and seals due to crankcase pressurization.

4. Worn Piston Ring Grooves

For piston rings to form a good seal, the sides of the ring grooves must be
true and flat - not flared or shouldered. Piston rings in tapered or irregular
grooves will not seal properly and, consequently, oil will pass around behind
the rings into the combustion chamber.
5. Worn, Broken or Stuck Piston Rings

When piston rings are broken, worn or stuck to such an extent that the
correct tension and clearances are not maintained, this will allow oil to be
drawn into the combustion chamber on the intake stroke and hot gases of

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combustion to be blown down the cylinder past the piston on the power
stroke. All of these conditions will result in burning and carbon build up of
the oil on the cylinders, pistons and rings.

6. Cracked or Broken Ring Lands

Cracked or broken ring lands prevent the rings from seating completely on
their sides and cause oil pumping. This condition will lead to serious
damage to the cylinders as well as complete destruction of the pistons and
rings. Cracked or broken ring lands cannot be corrected by any means other
than piston replacement.

7. Worn Valve Stems and Guides

When wear has taken place on valve stems and valve guides, the vacuum in
the intake manifold will draw oil and oil vapor between the intake valve
stems and guides into the intake manifold and then into the cylinder where it
will be burned.
8. Bent or Misaligned Connecting Rods

Bent or misaligned connecting rods will not allow the pistons to ride straight
in the cylinders. This will prevent the pistons and rings from forming a
proper seal with the cylinder walls and promote oil consumption. In
addition, it is possible that a bearing in a bent connect rod will not have
uniform clearance on the connecting rod wrist pin. Under these conditions,

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the bearing will wear rapidly and throw off an excessive amount of oil into
the cylinder.

9. Fuel Dilution

If raw fuel is allowed to enter the lubrication system, the oil will become
thinner and more volatile and will result in higher oil consumption. The
following conditions will lead to higher oil consumption;
Excess fuel can enter and mix with the oil via a leaking fuel injector
Gasoline contaminated with diesel fuel
Restricted air intake
Excessive idling

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10. Contaminated Cooling Systems
Corrosion, rust, scale, sediment or other formations in the water jacket and
radiator will prevent a cooling system from extracting heat efficiently. This
is likely to cause cylinder distortion thus leading to higher oil consumption.

11. Oil Viscosity

The use of oil with a viscosity that is too light may result in high oil
consumption. Refer to the vehicle owner's manual for the proper oil
viscosity to be used under specific driving conditions and/or ambient
temperatures.

12. Dirty Engine Oil

Failure to change the oil and filter at proper intervals may cause the oil to be
so dirty that it will promote accumulation of sludge and varnish and restrict
oil passages in the piston rings and pistons. This will increase oil
consumption; dirty oil by nature is also consumed at a higher rate than clean
oil.

13. Crankcase Overfull

Due to an error in inserting the oil dip stick so that it does not come to a seat
on its shoulder, a low reading may be obtained. Additional oil may be added
to make the reading appear normal with the stick in this incorrect position
which will actually make the oil level too high. If the oil level is so high that
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the lower ends of the connecting rods touch the oil in the oil pan excessive
quantities of oil will be thrown on the cylinder walls and some of it will
work its way up into the combustion chamber.

14. Excessively High Oil Pressure

A faulty oil pressure relief valve may cause the oil pressure to be too high.
The result will be that the engine will be flooded with an abnormally large
amount of oil in a manner similar to that which occurs with worn bearings.
This condition may also cause the oil filter to burst.

15. Aftermarket Performance Chips and Modification

Increasing performance through the use of performance/power enhancement

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products to a stock or factory engine will increase the chance of excessive
oil consumption.

16. Lugging Engine

Lugging is running the engine at a lower RPM in a condition where a higher
RPM (more power/torque) should be implemented. Especially susceptible
on vehicles equipped with a manual transmission. This driving habit causes
more stress loading on the piston and can lead to increases in engine oil
consumption.

17. Turbocharged Engines

There is a possibility for PCV "push-over" due to higher crankcase pressure
(as compared to naturally aspirated engines) which is normal for
turbocharged engines. This condition causes varying amounts of engine oil
to enter the intake manifold, charge air cooler and associated plumbing to
and from the charge air cooler, also a leaking turbocharger seal will draw oil
into the combustion chamber where it will burn (blue smoke from tail pipe
may be present) and form carbon deposits which contribute to further oil
consumption as they interfere with proper engine function.
18. Restricted Air Intake

Excessive restriction in the air intake system will increase engine vacuum
and can increase oil consumption, an extremely dirty air filter would be one

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example of this situation.

19. Intake Manifold port seals

Engines that have a "V" configuration and a "wet valley" (3.3/3.8L) could
draw oil into the intake ports due to improper sealing between the intake
manifold ports and cylinder head. Causes may include improper torque of
intake manifold bolts, corrosion (aluminum intake manifold) and or warped
sealing surface.
ENGINE OIL LEAK INSPECTION

Begin with a thorough visual inspection of the engine, particularly at the area of
the suspected leak. If an oil leak source is not readily identifiable, the following

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steps should be followed:

1. Do not clean or degrease the engine at this time because some solvents may
cause rubber to swell, temporarily stopping the leak.
2. Add an oil soluble dye (use as recommended by manufacturer). Start the
engine and let idle for approximately 15 minutes. Check the oil dipstick to
make sure the dye is thoroughly mixed as indicated with a bright yellow
color under a black light.
3. Using a black light, inspect the entire engine for fluorescent dye, particularly
at the suspected area of oil leak. If the oil leak is found and identified, repair
as necessary.
4. If dye is not observed, drive the vehicle at various speeds for approximately
24 km (15 miles), and repeat inspection.
5. If the oil leak source is not positively identified at this time , proceed
with the air leak detection test method as follows:
Disconnect the fresh air hose (make-up air) at the cylinder head cover
and plug or cap the nipple on the cover.
Remove the PCV valve hose from the cylinder head cover. Cap or plug
the PCV valve nipple on the cover.
Attach an air hose with pressure gauge and regulator to the dipstick
tube.

CAUTION: Do not subject the engine assembly to

more than 20.6 kPa (3 PSI) of test pressure.

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Gradually apply air pressure from 1 psi to 2.5 psi maximum while
applying soapy water at the suspected source. Adjust the regulator to
the suitable test pressure that provides the best bubbles which will
pinpoint the leak source. If the oil leak is detected and identified, repair
per service information procedures.
If the leakage occurs at the crankshaft rear oil seal area, refer to
INSPECTION FOR REAR SEAL AREA LEAKS .
6. If no leaks are detected, turn off the air supply. Remove the air hose, all
plugs, and caps. Install the PCV valve and fresh air hose (make-up air).
Proceed to next step.
7. Clean the oil off the suspect oil leak area using a suitable solvent. Drive the
vehicle at various speeds approximately 24 km (15 miles). Inspect the
engine for signs of an oil leak by using a black light.

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NOTE: If oil leakage is observed at the dipstick tube to block
location; remove the tube, clean and reseal using Mopar®
Stud AND Bearing Mount (press fit tube applications
only), and for O-ring style tubes, remove tube and replace
the O-ring seal.
INSPECTION FOR REAR SEAL AREA LEAKS

Since it is sometimes difficult to determine the source of an oil leak in the rear
seal area of the engine, a more involved inspection is necessary. The following
steps should be followed to help pinpoint the source of the leak.

If the leakage occurs at the crankshaft rear oil seal area:

1. Disconnect the battery.

2. Raise the vehicle.
3. Remove torque converter or clutch housing cover and inspect rear of block
for evidence of oil. Use a black light to check for the oil leak. If a leak is
present in this area, remove transmission for further inspection.
a. Circular spray pattern generally indicates seal leakage or crankshaft
damage.
b. Where leakage tends to run straight down, possible causes are a porous
block, oil gallery cup plug, bedplate to cylinder block mating surfaces
and seal bore. See appropriate repair procedures for these items.

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4. If no leaks are detected, pressurize the crankcase as previously described.

CAUTION: Do not exceed 20.6 kPa (3 psi).

5. If the leak is not detected, very slowly turn the crankshaft and watch for
leakage. If a leak is detected between the crankshaft and seal while slowly
turning the crankshaft, it is possible the crankshaft seal surface is damaged.
The seal area on the crankshaft could have minor nicks or scratches that can
be polished out with emery cloth.

CAUTION: Use extreme caution when crankshaft

polishing is necessary to remove minor nicks
and scratches. The crankshaft seal flange is

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especially machined to complement the
function of the rear oil seal.

6. For bubbles that remain steady with shaft rotation, no further inspection can
be done until disassembled.
7. After the oil leak root cause and appropriate corrective action have been
identified, replace component(s) as necessary.
STANDARD PROCEDURE
DUST COVERS AND CAPS

Fig. 2: Covers/Caps
Courtesy of CHRYSLER GROUP, LLC
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Due to the high amounts of failures caused by dust, dirt, moisture and other
foreign debris being introduced to the engine during service. Covers or caps are
needed to reduce the possible damage that can be caused or created.

cardiagn.com
Fig. 3: Opening Cover
Courtesy of CHRYSLER GROUP, LLC
Covers over openings will reduce any possibilities for foreign materials to enter
the engine systems. Using miller tool (special tool #10368, Set, Universal
Protective Cap), Select the appropriated cover needed to the procedure.
ENGINE GASKET SURFACE PREPARATION

Fig. 4: Proper Tool Usage For Surface Preparation

Courtesy of CHRYSLER GROUP, LLC

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To ensure engine gasket sealing, proper surface preparation must be performed,

especially with the use of aluminum engine components and multi-layer steel
cylinder head gaskets.

Never use the following to clean gasket surfaces:

Metal scraper (1).
Abrasive pad or paper to clean cylinder block and head.
High speed power tool with an abrasive pad or a wire brush (2).

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Fig. 5: Proper Tool Usage For Surface Preparation
Courtesy of CHRYSLER GROUP, LLC

NOTE: Multi-Layer Steel (MLS) head gaskets require a scratch

free sealing surface.

Only use the following for cleaning gasket surfaces:

Solvent or a commercially available gasket remover

Plastic or wood scraper (4).
High speed power tool with a plastic bristle brush style disc (3).

Sealing surfaces must be free of grease or oil residue. Clean surfaces with
Mopar® brake parts cleaner (or equivalent).
REPAIR OF DAMAGED OR WORN THREADS

Damaged or worn threads (excluding spark plug and camshaft bearing cap
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attaching threads) can be repaired. Essentially, this repair consists of drilling out
worn or damaged threads, tapping the hole with a special Heli-Coil Tap, (or
equivalent) and installing an insert into the tapped hole. This brings the hole back
to its original thread size.

CAUTION: Be sure that the tapped holes maintain the original

center line.

Heli-Coil tools and inserts are readily available from automotive parts jobbers.
HYDROSTATIC LOCKED ENGINE

When an engine is suspected to be hydrostatically locked, regardless of what

caused the problem, the following steps should be used.

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CAUTION: DO NOT use starter motor to rotate the engine,
severe damage may occur.

1. Inspect air cleaner, induction system and intake manifold to insure system is
dry and clear of foreign material.
2. Remove negative battery cable.
3. Place a shop towel around the spark plugs when removing them from the
engine. This will catch any fluid that may possibly be in the cylinder under
pressure.
4. With all spark plugs removed, rotate engine crankshaft using a breaker bar
and socket.
5. Identify the fluid in the cylinder(s) (i.e., coolant, fuel, oil or other).
6. Make sure all fluid has been removed from the cylinders. Inspect engine for
damage (i.e., connecting rods, pistons, valves, etc.)
7. Repair engine or components as necessary to prevent this problem from re-
occurring.

CAUTION: Squirt approximately one teaspoon of oil into

the cylinders, rotate engine to lubricate the
cylinder walls to prevent damage on restart.

8. Install new spark plugs.

9. Drain engine oil and remove oil filter.

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10. Install a new oil filter.

11. Fill engine with specified amount of approved oil.
12. Connect negative battery cable.
13. Start engine and check for any leaks.
FORM-IN-PLACE GASKETS AND SEALERS

NOTE: All of the sealants mentioned below are not used on

every engine, they are listed as general reference guide.
See appropriate service information for specific sealer
usage.

There are numerous places where form-in-place gaskets are used on the engine.

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Care must be taken when applying form-in-place gaskets to assure obtaining the
desired results.Do not use form-in-place gasket material unless specified.
Bead size, continuity, and location are of great importance. Too thin a bead can
result in leakage while too much can result in spill-over which can break off and
obstruct fluid feed lines. A continuous bead of the proper width is essential to
obtain a leak-free gasket. All sealing surfaces that use form-in-place gaskets and
sealers must free of grease or oil. Surfaces should be cleaned with Mopar®
brake parts cleaner prior to sealer application. After the sealer is applied, the
parts should be assembled in no more than 10 minutes.

There are numerous types of form-in-place gasket materials that are used in the
engine area. Mopar® Engine RTV GEN II, Mopar® ATF-RTV, and Mopar®
Gasket Maker gasket materials, each have different properties and can not be
used in place of the other.

MOPAR® ENGINE RTV GEN II is used to seal components exposed to

engine oil. This material is a specially designed black silicone rubber RTV that
retains adhesion and sealing properties when exposed to engine oil. Moisture in
the air causes the material to cure. This material is available in three ounce tubes
and has a shelf life of one year. After one year this material will not properly
cure. Always inspect the package for the expiration date before use.

MOPAR® ATF RTV is a specifically designed black silicone rubber RTV that
retains adhesion and sealing properties to seal components exposed to automatic
transmission fluid, engine coolants, and moisture. This material is available in
three ounce tubes and has a shelf life of one year. After one year this material

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will not properly cure. Always inspect the package for the expiration date before
use.

MOPAR® GASKET MAKER is an anaerobic type gasket material. The

material cures in the absence of air when squeezed between two metallic
surfaces. It will not cure if left in the uncovered tube. The anaerobic material is
for use between two machined surfaces. Do not use on flexible metal flanges.

MOPAR® BED PLATE SEALANT is a unique (green-in-color) anaerobic

type gasket material that is specially made to seal the area between the bed plate
and cylinder block without disturbing the bearing clearance or alignment of these
components. The material cures slowly in the absence of air when torqued
between two metallic surfaces, and will rapidly cure when heat is applied.

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MOPAR® GASKET SEALANT is a slow drying, permanently soft sealer. This
material is recommended for sealing threaded fittings and gaskets against leakage
of oil and coolant. Can be used on threaded and machined parts under all
temperatures. This material also will prevent corrosion. Mopar® Gasket Sealant
is available in a 13 oz. aerosol can or 4oz./16 oz. can w/applicator.
SEALER APPLICATION

Mopar® Gasket Maker material should be applied sparingly 1 mm (0.040 in.)

diameter or less of sealant to one gasket surface. Be certain the material
surrounds each mounting hole. Excess material can easily be wiped off.
Components should be torqued in place within 15 minutes. The use of a locating
dowel is recommended during assembly to prevent smearing material off the
location.
Mopar® Engine RTV GEN II or ATF RTV gasket material should be applied in
a continuous bead approximately 3 mm (0.120 in.) in diameter. All mounting
holes must be circled. For corner sealing and "T" joint locations, a 3.17 or 6.35
mm (1/8 or 1/4 in.) drop is placed in the center of the gasket contact area.
Uncured sealant may be removed with a shop towel. Components should be
torqued in place while the sealant is still wet to the touch (within 10 minutes).
The usage of a locating dowel is recommended during assembly to prevent
smearing material off the location.

Mopar® Gasket Sealant in an aerosol can should be applied using a thin, even
coat sprayed completely over both surfaces to be joined, and both sides of a

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gasket. Then proceed with assembly. Material in a can w/applicator can be

brushed on evenly over the sealing surfaces.
CORE/GALLERY PLUGS

CYLINDER HEAD CORE PLUGS

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Fig. 6: Core Hole Plug Removal
Courtesy of CHRYSLER GROUP, LLC
Using a blunt tool (3) such as a drift and a hammer, strike the bottom edge of the
cup plug (5). With the cup plug rotated, grasp firmly with pliers or other suitable
tool (2) and remove plug (5).

CAUTION: Do not drive cup plug into the casting as restricted

cooling can result and cause serious engine
problems.

Thoroughly clean inside of cup plug hole in cylinder head. Be sure to remove old
sealer. Lightly coat inside of cup plug hole with Mopar® Stud and Bearing
Mount (or equivalent). Make certain the new plug is cleaned of all oil or grease.
Using proper drive plug, drive plug into hole so that the sharp edge of the plug is
at least 0.5 mm (0.020 in.) inside the lead-in chamfer.

It is not necessary to wait for curing of the sealant. The cooling system can be
refilled and the vehicle placed in service immediately.
MEASURING BEARING CLEARANCE USING PLASTIGAGE

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Fig. 7: Plastigage Placed In Lower Shell-Typical

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Courtesy of CHRYSLER GROUP, LLC
Engine crankshaft bearing clearances can be determined by use of Plastigage or
equivalent. The following is the recommended procedure for the use of
Plastigage:

1. Remove oil film from surface to be checked. Plastigage is soluble in oil.

2. Place a piece of Plastigage (1) across the entire width of the journal. (In
addition, suspected areas can be checked by placing the Plastigage in the
suspected area). Torque the bearing cap bolts of the bearing being checked
to the proper specifications.
3. Remove the bearing cap and compare the width of the flattened Plastigage
with the scale provided on the package. Locate the band closest to the same
width. This band shows the amount of clearance. Differences in readings
between the ends indicate the amount of taper present. Record all readings
taken. Compare clearance measurements to specs found in engine
specifications. Refer to SPECIFICATIONS . Plastigage generally is
accompanied by two scales. One scale is in inches, the other is a metric
scale.

NOTE: Plastigage is available in a variety of clearance

ranges. Use the most appropriate range for the
specifications you are checking.

4. Install the proper crankshaft bearings to achieve the specified bearing

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clearances.
SPECIFICATIONS
2.4L ENGINE

GENERAL SPECIFICATIONS
DESCRIPTION SPECIFICATION
Metric Standard
Type In-Line OHV, DOHC
Number of Cylinders 4
Firing Order 1-3-4-2
Compression Ratio 10.5:1

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Displacement 2.4 Liters 146.5 cu. in.
Bore 88 mm 3.465 in.
Stroke 97 mm 3.819 in.
Compression Pressure 1172 - 1551 kPa 170 - 225 psi
Max. Variation Between
25%
Cylinders

CYLINDER BLOCK
DESCRIPTION SPECIFICATION
Metric Standard
Material Cast Aluminum
Cylinder Bore Diameter
A 88.000 - 88.010 mm 3.4645 - 3.4649 in.
B 88.010 - 88.020 mm 3.4649 - 3.4653 in.
C 88.020 - 88.030 mm 3.4653 - 3.4657 in.
Cylinder Bore Out-of-Round 0.020 mm 0.0008 in.
(Max.)
Cylinder Bore Diameter 0.028 mm 0.001 in.
Taper (Max.)
Main Bearing Bore Diameter
1 56.000 - 56.006 mm 2.2047 - 2.2049 in.
2 56.006 - 56.012 mm 2.2049 - 2.2051 in.
3 56.012 - 56.018 mm 2.2051 - 2.2054 in.

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Main Bearing Bore Diameter

0.0082 mm 0.0003 in.
Taper (Max.)

PISTONS
DESCRIPTION SPECIFICATION
Metric Standard
Piston Diameter
A 87.995 - 88.015 mm 3.4644 - 3.4652 in.
B 88.005 - 88.025 mm 3.4648 - 3.4656 in.
C 88.015 - 88.035 mm 3.4652 - 3.4659 in.
Clearance to Bore (-0.015) - 0.015 mm (-0.0006) - 0.0006 in.
Weight 302 - 312 grams 10.65 - 11.00 oz.

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Land Clearance
0.60 - 0.73 mm 0.0236 - 0.0287 in.
(Diametrical)
Piston Length 51.5 mm 2.028 in.
Piston Ring Groove Depth
3.51 - 3.68 mm 0.1382 - 0.0256 in.
No. 1
Piston Ring Groove Depth
4.05 - 4.25 mm 0.1594 - 0.1673 in.
No. 2
Piston Ring Groove Depth
2.70 - 2.90 mm 0.1063 - 0.1142 in.
No. 3

PISTON RINGS
DESCRIPTION SPECIFICATION
Metric Standard
Ring Gap-Top Compression
0.15 - 0.30 mm 0.0059 - 0.0118 in.
Ring
Wear Limit 0.8 mm 0.031 in.
Ring Gap-2nd Compression
0.30 - 0.45 mm 0.0118 - 0.0177 in.
Ring
Wear Limit 0.8 mm 0.031 in.
Ring Gap-Oil Control Steel
0.20 - 0.70 mm 0.0079 - 0.0276 in.
Rails
Wear Limit 1.0 mm 0.039 in.
Ring Side Clearance-
0.03 - 0.07 mm 0.1182 - 0.0028 in.
Compression Rings

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Wear Limit 0.10 mm 0.004 in.

Ring Side Clearance-Oil
0.06 - 0.15 mm 0.0024 - 0.0059 in.
Ring Pack
Ring Width-Top
2.95 - 3.25 mm 0.1161 - 0.1280 in.
Compression Ring
Ring Width-2nd
3.45 - 3.75 mm 0.1358 - 0.1476 in.
Compression Ring
Ring Width-Oil Ring Pack 2.30 - 2.60 mm 0.0906 - 0.1024 in.
Ring Thickness-Top
1.17 - 1.19 mm 0.0461 - 0.0469 in.
Compression Ring
Ring Thickness-2nd
1.17 - 1.19 mm 0.0461 - 0.0469 in.
Compression Ring

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Ring Thickness-Oil Ring
1.88 - 1.95 mm 0.0740 - 0.0768 in.
Pack

CONNECTING ROD
DESCRIPTION SPECIFICATION
Metric Standard
Bearing Clearance 0.032 - 0.060 mm 0.0012 - 0.0023 in.
Wear Limit 0.070 mm 0.0027 in.
Bore Diameter-Piston Pin 20.974 - 20.985 mm 0.8257 - 0.8261 in.
Bore Diameter-Crankshaft
51 - 51.015 mm 2.0078 - 2.0084 in.
End
Side Clearance 0.1 - 0.25 mm 0.0039 - 0.00098 in.
Wear Limit 0.27 mm 0.0106 in.
Weight-Total (Less Bearing) 484 grams 17.07 oz.

CRANKSHAFT
SPECIFICATION
DESCRIPTION
Metric Standard
Connecting Rod Journal Diameter
Journal Grade
1 47.966 - 47.972 mm 1.8884 - 1.8886 in.
2 47.960 - 47.966 mm 1.8884 - 1.8881 in.
3 47.954 - 47.960 mm 1.8879 - 1.8881 in.

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Rod Journal- Taper (Max) 0.005 mm 0.0001 in.

Main Bearing Journal Diameter
Journal Grade
0 51.985 - 51.988 mm 2.0466 - 2.0467 in.
1 51.982 - 51.985 mm 2.0465 - 2.0466 in.
2 51.979 - 51.982 mm 2.0464 - 2.0465 in.
3 51.976 - 51.979 mm 2.0462 - 2.0464 in.
4 51.973 - 51.976 mm 2.0461 - 2.0462 in.
Journal Out-of-Round
0.005 mm 0.0001 in.
(Max.)
Journal Taper (Max.) 0.006 mm 0.0002 in.
End Play 0.05 - 0.25 mm 0.0019 - 0.0098 in.

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Wear Limit 0.30 mm 0.0118 in.
Main Bearing Diametrical
0.028 - 0.048 mm 0.0011 - 0.0018 in.
Clearance
Main Bearing Diametrical
0.058 mm 0.0022 in.
Clearance (Max)

CYLINDER HEAD CAMSHAFT BEARING BORE DIAMETER

DESCRIPTION SPECIFICATION
Metric Standard
Cam Bearing Bore
Front Intake 30.000 - 30.021 mm 1.1810 - 1.1819 in.
Front Exhaust 40.000 - 40.024 mm 1.5747 - 1.5756 in.
Cam Bearing Bore No. 1-4 24.000 - 24.021 mm 0.9448 - 0.9457 in.

CAMSHAFT
DESCRIPTION SPECIFICATION
Metric Standard
Cam Journal Diameter
Front Intake Cam 29.964 - 29.980 mm 1.1797 - 1.1803 in.
Front Exhaust Cam 35.984 - 36.000 mm 1.4166 - 1.4173 in.
Cam Journal Diameter No.
23.954 - 23.970 mm 0.943 - 0.944 in.
1-4
Bearing Clearance - Diametrical

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Front Intake Journal 0.020 - 0.057 mm 0.0008 - 0.0022 in.

Front Exhaust Journal 0.019 - 0.051 mm 0.0007 - 0.0020 in.
All Others 0.020 - 0.067 mm 0.0008 - 0.0026 in.
End Play 0.11 - 0.25 mm 0.004 - 0.009 in.
Max Lift @ 0.2mm (0.007 in.) lash
Intake 9.2 mm 0.362 in.
Max Lift @ 0.28mm (0.011 in.) lash
Exhaust 8.42 mm 0.331 in.
Intake Valve Timing w/ VVT in lock-pin position*
Closes (ABDC) 49.3°
Opens (ATDC) 10.3°
Duration 219°

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Exhaust Valve Timing w/ VVT in lock-pin position*
Closes (BTDC) 8.45°
Opens (BBDC) 45°
Duration 216.55°
Valve Overlap @ 0.5mm
(0.019 in.) w/ VVT in lock- 18.75°
pin position
* All reading in crankshaft degrees at 0.5 mm (0.019 in.) valve lift.

CYLINDER HEAD
DESCRIPTION SPECIFICATION
Metric Standard
Material Cast Aluminum - Heat treated
Gasket Thickness
0.54 mm 0.021 in.
(Compressed)
Valve Tappet Bore I.D. 32.000 - 32.025 mm 1.2598 - 1.2608 in.
Valve Tappet O.D. 31.964 - 31.980 mm 1.2584 - 1.2590 in.

VALVE SEAT
DESCRIPTION SPECIFICATION
Metric Standard
Angle 44.75° - 45.10°
Seat Outer Diameter - Intake 34.45 - 34.61 mm 1.3562 - 1.3625 in.

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Seat Outer Diameter -

28.04 - 28.20 mm 1.1039 - 1.1102 in.
Exhaust
Runout (Max.) 0.05 mm 0.002 in.
Valve Seat Width
Intake 1.16 - 1.46 mm 0.0456 - 0.0574 in.
Service Limit 2.0 mm 0.079 in.
Exhaust 1.35 - 1.65 mm 0.0531 - 0.0649 in.
Service Limit 2.5 mm 0.098 in.

VALVE GUIDE
DESCRIPTION SPECIFICATION
Metric Standard

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Diameter I.D. 5.500 - 5.518 mm 0.2165 - 0.2172 in.
Guide Bore Diameter 10.983 - 11.001 mm 0.432 - 0.4331 in.
Guide Height (spring seat to
14.6 - 15.2 mm 0.5748 - 0.5984 in.
guide tip)

VALVES
DESCRIPTION SPECIFICATION
Metric Standard
Face Angle - Intake and
45.25° - 45.75°
Exhaust
Head Diameter - Intake 34.9 - 35.1 mm 1.374 - 1.3818 in.
Head Diameter - Exhaust 28.9 - 29.1 mm 1.1377 - 1.1456 in.
Valve Lash
Intake 0.17 - 0.23 mm 0.006 - 0.009 in.
Exhaust 0.27 - 0.33 mm 0.010 - 0.012 in.
Valve Length (Overall)
Intake 113.18 mm 4.455 in.
Exhaust 105.887 mm 4.168 in.
Valve Stem Diameter
Intake 5.465 - 5.480 mm 0.2151 - 0.2157 in.
Exhaust 5.458 - 5.470 mm 0.2148 - 0.2153 in.

VALVE MARGIN

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DESCRIPTION SPECIFICATION
Metric Standard
Intake 0.672 mm 0.0264 in.
Exhaust 0.744 mm 0.02929 in.

VALVE STEM TIP

DESCRIPTION SPECIFICATION
Metric Standard
Intake 48.04 mm 1.891 in.
Exhaust 47.99 mm 1.889 in.

VALVE STEM TO GUIDE CLEARANCE

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DESCRIPTION SPECIFICATION
Metric Standard
Intake 0.020 - 0.053 mm 0.0008 - 0.0021 in.
Max. Allowable 0.076 mm 0.003 in.
Exhaust 0.030 - 0.060 mm 0.0012 - 0.0024 in.
Max. Allowable 0.101 mm 0.004 in.

VALVE SPRINGS
DESCRIPTION SPECIFICATION
Metric Standard
Free Length (Approx.) 47.0 mm 1.850 in.
Nominal Force (Valve 179.5 N ± 9 @ 35.0
40.35 lbs. @ 1.38 in.
Closed) mm
Nominal Force (Valve 364.8 N ± 17 N @ 82.01 lbs. ± 3.82 lbs. @
Open) 29.25 mm 1.152 in.
Installed Height 35.00 mm 1.378 in.
Number of Coils 8.5 ± 0.1
Wire Diameter 2.90 mm ± 0.03 0.114 in ± 0.001 in.

OIL PRESSURE
DESCRIPTION SPECIFICATION
Metric Standard
At Curb Idle Speed* 25 kPa 4 psi min.

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At 3000 RPM 170 - 550 kPa 25 - 80 psi

CAUTION:
*If pressure is ZERO at curb idle, DO NOT run engine at 3000 RPM.

TORQUE

DESCRIPTION N.m Ft. Lbs. In. Lbs.

Refer to PUMP, ENGINE OIL,
Balance Shaft Module
INSTALLATION
Bell Housing-Bolts 48 35 -
Camshaft Bearing Cap-Bolts
M6 Bolts 12 - 106
M8 Bolts 30 22 -

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Coils 8 - 71
Connecting Rod Cap-Bolts 20 + 90° 15 + 90° -
Coolant Temperature Sender 18 13 -
Crankshaft Main Bearing Cap-Bolts Refer to INSTALLATION
Crankshaft Damper-Bolt 210 155 -
Cylinder Head-Bolts Refer to INSTALLATION
Cylinder Head Cover-Bolts Refer to COVER(S), CYLINDER
HEAD, INSTALLATION
Engine Support Bracket-Bolts 48 36 -
Exhaust Manifold-Bolts 34 25 -
Exhaust Manifold Heat Shield-Bolts
M6x25mm Bolts 7 - 62
M6x70mm Bolts 9 - 80
Flex Plate to Crankshaft-Bolts 29 + 51° 22 + 51° -
Intake Manifold-Bolts 24 18 -
Ladder Frame 22 16 -
Oil Cooler Connector Bolt 49 36 -
Oil Filter 14 10 -
Oil Filter Nipple 49 36 -
Oil Jet Fastener 12 - 106
Oil Pan-Bolts
M6 Bolts 9 - 80

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M8 Bolts 24 18 -
Oil Pan Drain-Plug 27 20 -
Oil Pressure Switch 8 - 71
PCV Valve 5 - 44
Phaser to Camshaft-Bolt 75 55 -
Spark Plugs 27 20 239
Timing Chain Cover
M6 Bolts 9 - 80
M8 Bolts 26 19 -
Timing Chain Tensioner Assembly-
10 - 89
Bolts
Timing Chain Guides 12 - 106

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REMOVAL
ENGINE COVER

Fig. 8: Engine Cover - 2.4L

Courtesy of CHRYSLER GROUP, LLC
1. Remove engine cover (1) by pulling upwards.
REMOVAL - ENGINE

CAUTION: If the original engine has experienced a

catastrophic failure or an individual failure with the

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piston, cylinder bore, engine block, valve or valve

seat, the intake manifold MUST be replaced with a
new manifold.

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Fig. 9: Engine Cover - 2.4L
Courtesy of CHRYSLER GROUP, LLC
1. Remove the hood. Refer to HOOD, REMOVAL .
2. Remove the engine cover (1).

Fig. 10: Ignition Coils, Air Hose, Fuel Line, Injectors & PCV Hose
Courtesy of CHRYSLER GROUP, LLC
3. Perform the fuel pressure release procedure. Refer to FUEL SYSTEM

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PRESSURE RELEASE PROCEDURE .

4. Disconnect the fuel line (3) from the fuel rail. Refer to FITTING, QUICK
CONNECT .

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Fig. 11: Retainers, Fresh Air Inlet Duct & Air Cleaner Body
Courtesy of CHRYSLER GROUP, LLC
5. Unlock the retainers (2) and remove the fresh air inlet duct (3) from air
cleaner body (1).

Fig. 12: Electrical Connectors, PCM, Three Mounting Bolts & Ground
Wire
Courtesy of CHRYSLER GROUP, LLC
6. Disconnect and isolate the negative battery cable.

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7. Unlock and disconnect the electrical connectors (2) from the PCM (4).
8. Remove the mounting bolt (3) and ground wire (1).

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Fig. 13: Air Cleaner Body, Air Inlet Tube & Make-Up Air Hose
Courtesy of CHRYSLER GROUP, LLC
9. Remove the air inlet tube (2) from the air cleaner body (1).
10. Disconnect the make-up air hose (3) from the air cleaner body.
11. Remove the support bracket bolt from the strut tower.
12. Pull upward to disengage the pins from the rubber grommets and remove the
air cleaner body (1).

Fig. 14: Battery Tray

Courtesy of CHRYSLER GROUP, LLC

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13. Remove the battery and the battery tray (1). Refer to TRAY, BATTERY,
REMOVAL .
14. Discharge air conditioning system, if equipped. Refer to PLUMBING,
STANDARD PROCEDURE .
15. Drain cooling system. Refer to STANDARD PROCEDURE .

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Fig. 15: Windshield Washer Reservoir, Power Steering Reservoir &
Coolant Reservoir
Courtesy of CHRYSLER GROUP, LLC
16. Remove the coolant reservoir (3).
17. Remove the power steering reservoir (2).
18. Remove the windshield washer reservoir (1).

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Fig. 16: Coolant Temperature Sensor, Capacitor Electrical Connector

& Coolant Adapter
Courtesy of CHRYSLER GROUP, LLC
19. Remove coolant hoses from coolant adapter (3).
20. Disconnect coolant temperature sensor connector (1) and capacitor
connector (2).

cardiagn.com
Fig. 17: Radiator Hose Support
Courtesy of CHRYSLER GROUP, LLC
21. Remove upper radiator hose support (1).

Fig. 18: Ignition Coils, Air Hose, Fuel Line, Injectors & PCV Hose
Courtesy of CHRYSLER GROUP, LLC

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22. Disconnect coils (1), injectors (4), cam sensors, oil temperature sensor, and
oil control valve electrical connectors and reposition harness.
23. Remove PCV hose (5) from valve cover.

cardiagn.com
Fig. 19: Throttle Body Support
Courtesy of CHRYSLER GROUP, LLC
24. Remove harness from intake (2).
25. Remove throttle body support bracket (1).
26. Remove vacuum lines from intake manifold.
27. Disconnect electronic throttle control and manifold flow control valve
electrical connectors.

Fig. 20: Intake Manifold Bolt Removal & Tightening Sequence

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Courtesy of CHRYSLER GROUP, LLC

28. Remove dipstick.
29. Remove intake bolts (1 - 5) and remove intake.
30. Disconnect coolant temperature sensor at block, knock sensor, oil pressure
sensor, generator, starter, block heater (if equipped), A/C compressor (if
equipped), and block ground.
31. Remove accessory drive belt.

cardiagn.com
Fig. 21: Power Steering Line Support
Courtesy of CHRYSLER GROUP, LLC
32. Remove power steering line support at engine mount (1).

Fig. 22: P/S Hose Support - FWD

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Courtesy of CHRYSLER GROUP, LLC

33. On FWD vehicles, remove power steering hose support from exhaust
manifold (2).
34. Remove power steering pump and set aside.

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Fig. 23: Ground Strap
Courtesy of CHRYSLER GROUP, LLC
35. Remove ground strap (1) at right strut tower.
36. Raise vehicle.

Fig. 24: Damper Removal

Courtesy of CHRYSLER GROUP, LLC

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37. Install Damper holder (special tool #9707, Holder, Vibration Damper) (1).
38. Remove crankshaft damper bolt and remove damper.
39. Remove right wheel.
40. Remove right splash shield.

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Fig. 25: Oil Drain Plug
Courtesy of CHRYSLER GROUP, LLC
41. Drain oil (2).

Fig. 26: Exhaust Pipe To Manifold, Heat Shield & Oxygen Sensor
Electrical Connector
Courtesy of CHRYSLER GROUP, LLC
42. On AWD vehicles, remove maniveter. Refer to MANIFOLD, EXHAUST,

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REMOVAL.
43. Remove exhaust pipe to exhaust manifold bolts (1).
44. Disconnect oxygen sensor connector (3).

cardiagn.com
Fig. 27: Exhaust Pipe & Suitable Strap
Courtesy of CHRYSLER GROUP, LLC
45. On FWD vehicles, pull the exhaust pipe (1) rearward with a suitable strap
(2).

Fig. 28: Inspection Cover

Courtesy of CHRYSLER GROUP, LLC
46. Remove inspection cover (1) and mark torque converter to flywheel.

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cardiagn.com
Fig. 29: Modular Clutch To Flex Plate Bolts
Courtesy of CHRYSLER GROUP, LLC
47. On vehicles equipped with an automatic transaxle, remove torque converter
bolts (1).
48. On vehicles equipped with an manual transaxle, remove modular clutch
bolts (1).
49. Remove lower bellhousing bolts (2).

Fig. 30: A/C Compressor

Courtesy of CHRYSLER GROUP, LLC
50. Remove A/C compressor (1).

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51. Remove generator and lower idler pulley.

cardiagn.com
Fig. 31: Crankshaft Position Sensor
Courtesy of CHRYSLER GROUP, LLC
52. Disconnect crankshaft position sensor (2) electrical connector.
53. Remove crankshaft position sensor (2).

Fig. 32: Identifying Lift Chain

Courtesy of CHRYSLER GROUP, LLC
54. Remove exhaust variable valve timing solenoid.
55. Install engine lift chain (1).
56. Install engine lift chain to rear lift hook.

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57. Install appropriate engine lifting crane.

cardiagn.com
Fig. 33: Right Engine Mount
Courtesy of CHRYSLER GROUP, LLC
58. Remove engine mount through bolt (4).
59. Remove right engine mount bracket retaining bolts (3).
60. Remove engine mount adapter (2).
61. Raise engine away from vehicle.
INSTALLATION
ENGINE COVER

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Fig. 34: Engine Cover - 2.4L

Courtesy of CHRYSLER GROUP, LLC
1. Position engine cover (1) over mounting studs.
2. Seat the cover on the rear studs by pushing downwards.
3. Push downward on the front of the cover to seat the front studs.
INSTALLATION - ENGINE

CAUTION: If the original engine has experienced a

catastrophic failure or an individual failure with the
piston, cylinder bore, engine block, valve or valve
seat, the intake manifold MUST be replaced with a
new manifold.

Fig. 35: Identifying Lift Chain

Courtesy of CHRYSLER GROUP, LLC
cardiagn.com
1. Position engine over engine compartment and slowly lower into place.
2. Align engine and transaxle.
3. Install upper bellhousing bolts and tighten.

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Fig. 36: Right Engine Mount

Courtesy of CHRYSLER GROUP, LLC

cardiagn.com
4. Install mounting bolts (3) at the right mount bolts and tighten bolts to 118
N.m (87 ft. lbs.).

Fig. 37: Modular Clutch To Flex Plate Bolts

Courtesy of CHRYSLER GROUP, LLC
5. Install clutch to flex plate bolts (1).
6. Install lower bell housing bolts (2) and tighten.

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Fig. 38: Inspection Cover

Courtesy of CHRYSLER GROUP, LLC

cardiagn.com
7. Install inspection cover (1).

Fig. 39: Crankshaft Position Sensor

Courtesy of CHRYSLER GROUP, LLC
8. Connect crankshaft position sensor (2). Connect crankshaft position sensor
electrical connector.
9. On AWD vehicles, install maniverter. Refer to MANIFOLD, EXHAUST,
INSTALLATION.

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Fig. 40: Ground Strap

Courtesy of CHRYSLER GROUP, LLC

cardiagn.com
10. Install Ground strap (1).
11. Raise vehicle.

Fig. 41: Exhaust To Maniverter Bolts

Courtesy of CHRYSLER GROUP, LLC
12. On AWD vehicles, install maniverter to exhaust pipe bolts (1) and tighten
bolts.

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Fig. 42: Exhaust Pipe & Suitable Strap

Courtesy of CHRYSLER GROUP, LLC

cardiagn.com
13. On FWD vehicles, remove strap (2) from exhaust pipe (1).

Fig. 43: Exhaust Pipe To Manifold, Heat Shield & Oxygen Sensor
Electrical Connector
Courtesy of CHRYSLER GROUP, LLC
14. On FWD vehicles, install new manifold to catalytic converter gasket (1) and
install catalytic converter to exhaust manifold and tighten.
15. Connect oxygen sensor electrical connector (3).
16. Install generator.

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Fig. 44: A/C Compressor

Courtesy of CHRYSLER GROUP, LLC

cardiagn.com
17. Install A/C compressor (1).

Fig. 45: Damper Removal

Courtesy of CHRYSLER GROUP, LLC
18. Install crankshaft damper.
19. Apply clean engine oil crankshaft damper bolt threads and between bolt
head and washer. Tighten bolt to 210 N.m (155 ft. lbs.).
20. Install right splash shield.
21. Install right tire.

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Fig. 46: Oil Cooler

cardiagn.com
Courtesy of CHRYSLER GROUP, LLC
22. Install oil cooler if equipped (2). Refer to COOLER, OIL,
INSTALLATION.
23. Connect coolant hoses to oil cooler (2), if equipped.
24. Install new oil filter (3).
25. Lower vehicle.
26. Install upper idler pulley.

Fig. 47: Power Steering Line Support

Courtesy of CHRYSLER GROUP, LLC
27. Install power steering pump.
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28. Install power steering line support bracket at engine mount (1).

cardiagn.com
Fig. 48: P/S Hose Support - FWD
Courtesy of CHRYSLER GROUP, LLC
29. On FWD vehicles, install power steering hose support (2) at exhaust
manifold.
30. Install accessory drive belt.

Fig. 49: Intake Manifold Bolt Removal & Tightening Sequence

Courtesy of CHRYSLER GROUP, LLC
31. Connect electrical connectors at block ground, starter, A/C compressor,
knock sensor, Oil pressure sensor, generator, Coolant temperature sensor at
block, and block heater.

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32. Install intake manifold and tighten bolts as shown in illustration.

cardiagn.com
Fig. 50: Throttle Body Support
Courtesy of CHRYSLER GROUP, LLC
33. Install throttle body support bracket (1).
34. Install engine oil dip stick.
35. Install vacuum lines at throttle body and intake manifold.
36. Connect manifold flow control valve and electronic throttle control
electrical connectors and fasten harness to intake.

Fig. 51: Ignition Coils, Air Hose, Fuel Line, Injectors & PCV Hose
Courtesy of CHRYSLER GROUP, LLC
37. Install intake air tube on throttle body.

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38. Install PCV hose (5) to valve cover.

39. Connect the fuel line (3) to the fuel rail.
40. Connect coils (1), injectors (4), oil temperature sensor and cam position
sensors.

cardiagn.com
Fig. 52: Radiator Hose Support
Courtesy of CHRYSLER GROUP, LLC
41. Install upper radiator support bracket (1).

Fig. 53: Coolant Temperature Sensor, Capacitor Electrical Connector

& Coolant Adapter
Courtesy of CHRYSLER GROUP, LLC
42. Connect engine coolant temperature sensor (1), and capacitor (2).

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43. Install coolant hoses at coolant adapter (3).

44. Connect purge hose (4).

cardiagn.com
Fig. 54: Windshield Washer Reservoir, Power Steering Reservoir &
Coolant Reservoir
Courtesy of CHRYSLER GROUP, LLC
45. Install coolant reservoir (3) and connect hose.

Fig. 55: Battery Tray

Courtesy of CHRYSLER GROUP, LLC
46. Install the battery tray (1). Refer to TRAY, BATTERY,
INSTALLATION .

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Fig. 56: Air Cleaner Body, Air Inlet Tube & Make-Up Air Hose
Courtesy of CHRYSLER GROUP, LLC

cardiagn.com
47. Push down on the air cleaner body (1) to engage the pins into the grommets.
48. Install the support bracket bolt to the strut tower and tighten to 10 N.m (89
in. lbs.).
49. Install the air inlet tube (2) to the air cleaner body (1).
50. Connect the make-up air hose (3) to the air cleaner body.

Fig. 57: Electrical Connectors, PCM, Three Mounting Bolts & Ground
Wire
Courtesy of CHRYSLER GROUP, LLC
51. Install the mounting bolt (3) with ground wire (1) and tighten to 12 N.m
(106 in. lbs.).

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52. Connect and lock the electrical connectors (2).

cardiagn.com
Fig. 58: Retainers, Fresh Air Inlet Duct & Air Cleaner Body
Courtesy of CHRYSLER GROUP, LLC
53. Install the battery and connect the battery cables. Refer to BATTERY,
INSTALLATION .
54. Install the fresh air inlet duct (3) on the air cleaner body (1) and lock the
retainers (2).

Fig. 59: Engine Cover - 2.4L

Courtesy of CHRYSLER GROUP, LLC
55. Install the hood. Refer to HOOD, INSTALLATION .

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56. Fill with coolant. Refer to STANDARD PROCEDURE .

57. Fill with oil.
58. Start engine and check for leaks.
59. Install engine cover (1).
SPECIAL TOOLS
SPECIAL TOOLS

cardiagn.com
10368 - Set, Universal
Protective Cap

7700 - Tester, Cooling

System
(Originally Shipped In Kit
Number(s) 7700-A.)

8116 - Adapter, Pressure

PEP
(Originally Shipped In Kit
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Number(s) 8201, 8201CC,

8204, 8204CC.)

cardiagn.com
8514 - Pins, Tensioner
(Originally Shipped In Kit
Number(s) 8283, 8283CC,
8527, 8527CC, 8575,
8575CC, 9975.)

9506 - Installer, Oil Seal

(Originally Shipped In Kit
Number(s) 9610, 9970.)

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cardiagn.com
9509 - Installer, Oil Seal
(Originally Shipped In Kit
Number(s) 9610, 9970.)

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9701 - Wedge, Locking

(Originally Shipped In Kit
Number(s) 9610, 9970.)

cardiagn.com
9703 - Pin, Tensioner
(Originally Shipped In Kit
Number(s) 9610, 9970.)

9706 - Installer, Crankshaft

Rear Oil Seal
(Originally Shipped In Kit
Number(s) 9610, 9970.)

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cardiagn.com
9707 - Holder, Vibration
Damper
(Originally Shipped In Kit
Number(s) 9610, 9970.)

9879 - Adapter, Oil Pressure

Test
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(Originally Shipped In Kit

Number(s) 9998.)

cardiagn.com
C-3685-A - Bloc-Chek Kit

C-4171 - Driver Handle,

Universal
(Originally Shipped In Kit
Number(s) 9202, 9202A-
CAN, 9202CC, 9299,
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9299CC, 9300A-CAN.)

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C-4597 - Socket, Oil
Pressure

PLATE, IDENTIFICATION
DESCRIPTION

DESCRIPTION

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Fig. 60: Locating Engine Serial Number

Courtesy of CHRYSLER GROUP, LLC

cardiagn.com
The engine serial number (1) is located between the oil pan and the bellhousing.
The serial number contains engine build date, build location, and displacement.

Example: 8CAP1339710217

WORLD ENGINE
8 C A P1 339 7 1 0217
Model Engine Engine
Year Displacement Engine Plant
Build P1 =
A = 1.8L Variation GEMA Julian Julian Build
(with oil North Day of Year Shift Sequence
2008 cooler, P2 = Year 2007 Number
B = 2.0L turbo, for GEMA
MMNA) South
C = 2.4L

AIR INTAKE SYSTEM

AIR CLEANER

REMOVAL

REMOVAL

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Fig. 61: Retainers, Fresh Air Inlet Duct & Air Cleaner Body
Courtesy of CHRYSLER GROUP, LLC

cardiagn.com
1. Unlock the retainers (2) and remove the fresh air inlet duct (3) from air
cleaner housing (1).
2. Remove the support bracket bolt from the strut tower.
3. Remove the screws that hold the cover on the air cleaner housing.

Fig. 62: Electrical Connectors At Powertrain Control Module (PCM) -

DO NOT Unplug
Courtesy of CHRYSLER GROUP, LLC

CAUTION: Do Not unplug the electrical connectors from

the Powertrain Control Module (PCM). A
possible voltage spike can erase and damage

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the PCM.

4. Position the air cleaner housing cover aside.

cardiagn.com
Fig. 63: Air Cleaner Element
Courtesy of CHRYSLER GROUP, LLC
5. Remove the air cleaner element (1).
6. If necessary, clean the inside of the air cleaner housing.
INSTALLATION

INSTALLATION

Fig. 64: Air Cleaner Element

Courtesy of CHRYSLER GROUP, LLC

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1. Install the new cleaner element (1).

cardiagn.com
Fig. 65: Electrical Connectors At Powertrain Control Module (PCM) -
DO NOT Unplug
Courtesy of CHRYSLER GROUP, LLC

CAUTION: Do Not unplug the electrical connectors from

the Powertrain Control Module (PCM). A
possible voltage spike can erase and damage
the PCM.

2. Place the cover over the air cleaner housing. Hand tighten the cover screws.

Fig. 66: Retainers, Fresh Air Inlet Duct & Air Cleaner Body
Courtesy of CHRYSLER GROUP, LLC

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3. Install the support bracket bolt to the strut tower and tighten to 10 N.m (89
in. lbs.).
4. Install the fresh air inlet duct (3) on the air cleaner housing (1) and lock the
retainers (2).
BODY, AIR CLEANER

REMOVAL

REMOVAL

cardiagn.com
Fig. 67: Retainers, Fresh Air Inlet Duct & Air Cleaner Body
Courtesy of CHRYSLER GROUP, LLC
1. Unlock the retainers (2) and remove the fresh air inlet duct (3) from air
cleaner body (1).

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Fig. 68: Electrical Connectors, PCM, Three Mounting Bolts & Ground
Wire
Courtesy of CHRYSLER GROUP, LLC
2. Remove the bolts (3) that secure the PCM (4) to the air cleaner body cover
and position aside.

cardiagn.com
Fig. 69: Air Cleaner Body, Air Inlet Tube & Make-Up Air Hose
Courtesy of CHRYSLER GROUP, LLC
3. Remove the air inlet tube (2) from the air cleaner body (1).
4. Disconnect the make-up air hose (3) from the air cleaner body.
5. Remove the support bracket bolt from the strut tower.
6. Pull upward to disengage the pins from the rubber grommets and remove the
air cleaner body (1).
INSTALLATION

INSTALLATION

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Fig. 70: Air Cleaner Body, Air Inlet Tube & Make-Up Air Hose
Courtesy of CHRYSLER GROUP, LLC

cardiagn.com
1. Make sure the rubber grommets, for the air cleaner body lower pins, are in
place when reinstalling the air cleaner body.
2. Push down on the air cleaner body (1) to engage the pins into the grommets.
3. Install the support bracket bolt to the strut tower and tighten to 10 N.m (89
in. lbs.).
4. Install the air inlet tube (2) to the air cleaner body (1).
5. Connect the make-up air hose (3) to the air cleaner body.

Fig. 71: Electrical Connectors, PCM, Three Mounting Bolts & Ground
Wire
Courtesy of CHRYSLER GROUP, LLC

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6. Position the PCM (4) on the air cleaner body cover.

7. Install three mounting bolts (3) with one ground wire (1) and tighten to 10
N.m (89 in. lbs.).

cardiagn.com
Fig. 72: Retainers, Fresh Air Inlet Duct & Air Cleaner Body
Courtesy of CHRYSLER GROUP, LLC
8. Install the fresh air inlet duct (3) on the air cleaner body (1) and lock the
retainers (2).
CYLINDER HEAD
DESCRIPTION

DESCRIPTION

The cross flow designed, aluminum cylinder head contains dual over-head
camshafts with four valves per cylinder. The valves are arranged in two in-line
banks. The intake valves face toward the front of the vehicle. The exhaust valves
face the dash panel. The cylinder head incorporates powdered metal valve guides
and seats. The cylinder head is sealed to the block using a multi-layer steel head
gasket and retaining bolts.

Integral oil galleries provide lubrication passages to the variable camshaft timing
phasers, camshafts, and valve mechanisms.

NOTE: Replacement cylinder heads will come complete with

valves, seals, springs, retainers, keepers, lash buckets,

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and camshafts.
DIAGNOSIS AND TESTING

DIAGNOSIS AND TESTING - CYLINDER HEAD GASKET

A cylinder head gasket leak can be located between adjacent cylinders, between
a cylinder and the adjacent water jacket or from an oil passage to the exterior of
the engine.

Possible indications of the cylinder head gasket leaking between adjacent

cylinders are:
Loss of engine power
Engine misfiring

cardiagn.com
Poor fuel economy

Possible indications of the cylinder head gasket leaking between a cylinder and
an adjacent water jacket are:

Engine overheating
Loss of coolant
Excessive steam (white smoke) emitting from exhaust
Coolant foaming
CYLINDER-TO-CYLINDER LEAKAGE TEST

To determine if an engine cylinder head gasket is leaking between adjacent

cylinders, follow the procedures in Cylinder Compression Pressure Test. Refer to
CYLINDER COMPRESSION PRESSURE TEST . An engine cylinder head
gasket leaking between adjacent cylinders will result in approximately a 50-70%
reduction in compression pressure.
CYLINDER-TO-WATER JACKET LEAKAGE TEST

WARNING: USE EXTREME CAUTION WHEN THE ENGINE IS

OPERATING WITH COOLANT PRESSURE CAP
REMOVED.
VISUAL TEST METHOD

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With the engine cool, remove the coolant pressure cap. Start the engine and
allow it to warm up until thermostat opens.

If a large combustion/compression pressure leak exists, bubbles will be visible in

the coolant.
COOLING SYSTEM TESTER METHOD

WARNING: WITH THE COOLING SYSTEM TESTER IN PLACE,

PRESSURE WILL BUILD UP FAST. EXCESSIVE
PRESSURE BUILT UP BY CONTINUOUS ENGINE
OPERATION MUST BE RELEASED TO A SAFE
PRESSURE POINT. NEVER PERMIT THE
PRESSURE TO EXCEED 138 kPa (20 psi).

cardiagn.com
Install Cooling System Tester (special tool #7700, Tester, Cooling System) or
equivalent to pressure cap neck. Start the engine and observe the tester's pressure
gauge. If gauge pulsates with every power stroke of a cylinder a combustion
pressure leak is evident.
CHEMICAL TEST METHOD

Combustion leaks into the cooling system can also be checked by using
combustion leak tester (special tool #C-3685-A, Bloc-Chek Kit) or equivalent.
Perform test following the procedures supplied with the tool kit.
REMOVAL

REMOVAL

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Fig. 73: Engine Cover - 2.4L

cardiagn.com
Courtesy of CHRYSLER GROUP, LLC
1. Remove the engine cover (1) by pulling upward.
2. Perform the fuel system pressure release procedure. Refer to FUEL
SYSTEM PRESSURE RELEASE PROCEDURE .

Fig. 74: Retainers, Fresh Air Inlet Duct & Air Cleaner Body
Courtesy of CHRYSLER GROUP, LLC
3. Unlock the retainers (2) and remove the fresh air inlet duct (3) from air
cleaner body (1).

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Fig. 75: Electrical Connectors, PCM, Three Mounting Bolts & Ground
Wire

cardiagn.com
Courtesy of CHRYSLER GROUP, LLC
4. Disconnect and isolate the negative battery cable.
5. Unlock and disconnect the electrical connectors (2) from the PCM (4).
6. Remove the mounting bolt (3) and ground wire (1).

Fig. 76: Air Cleaner Body, Air Inlet Tube & Make-Up Air Hose
Courtesy of CHRYSLER GROUP, LLC
7. Remove the air inlet tube (2) from the air cleaner body (1).
8. Disconnect the make-up air hose (3) from the air cleaner body.
9. Remove the support bracket bolt from the strut tower.

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10. Pull upward to disengage the pins from the rubber grommets and remove the
air cleaner body (1).

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Fig. 77: Windshield Washer Reservoir, Power Steering Reservoir &
Coolant Reservoir
Courtesy of CHRYSLER GROUP, LLC
11. Drain the cooling system. Refer to STANDARD PROCEDURE .
12. Remove the coolant recovery bottle (3). Refer to BOTTLE, COOLANT
RECOVERY, REMOVAL .
13. Remove and reposition power steering reservoir (2).
14. Remove windshield washer bottle (1). Refer to RESERVOIR,
WINDSHIELD WASHER, REMOVAL .
15. Remove accessory drive belt. Refer to BELT, SERPENTINE,
REMOVAL .

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Fig. 78: Removing/Installing Power Steering Hose Hold Down

cardiagn.com
Courtesy of CHRYSLER GROUP, LLC
16. Remove power steering hose hold down (2).

Fig. 79: Removing/Installing Power Steering Pump Mounting Bolts

Through Pulley Openings
Courtesy of CHRYSLER GROUP, LLC
17. Remove the three power steering pump mounting bolts (1) through the
openings in the pulley (3) and reposition the pump.

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Fig. 80: Removing/Installing Cylinder Head Cover Bolts - Torque

Sequence

cardiagn.com
Courtesy of CHRYSLER GROUP, LLC
18. Remove the cylinder head cover. Refer to COVER(S), CYLINDER
HEAD, REMOVAL.
19. Remove ignition coils from cylinder head cover.

Fig. 81: Setting Engine To Top Dead Center

Courtesy of CHRYSLER GROUP, LLC
20. Raise and support the vehicle. Refer to HOISTING, STANDARD
PROCEDURE .
21. Remove the right splash shield. Refer to SHIELD, SPLASH, FRONT
WHEELHOUSE, REMOVAL .

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22. Set engine to TDC (1).

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Fig. 82: A/C Compressor
Courtesy of CHRYSLER GROUP, LLC
23. Remove lower A/C compressor bolts if equipped.
24. Remove lower A/C compressor mount (2) if equipped.

Fig. 83: Removing/Installing Accessory Drive Belt Upper & Lower Idler
Pulley
Courtesy of CHRYSLER GROUP, LLC
25. Remove accessory drive belt lower idler pulley (2).

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Fig. 84: Right Side Engine Mount Bracket, Crankshaft Damper &

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Water Pump Pulley
Courtesy of CHRYSLER GROUP, LLC
26. Remove crankshaft damper (2). Refer to DAMPER, VIBRATION,
REMOVAL.
27. Remove three bolts and water pump pulley (4) from water pump.
28. Remove lower bolt from right side engine mount bracket (1).

Fig. 85: Timing Chain Cover Lower Bolts

Courtesy of CHRYSLER GROUP, LLC
29. Remove timing chain cover lower bolts (1).

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Fig. 86: Exhaust Pipe To Manifold, Heat Shield & Oxygen Sensor
Electrical Connector

cardiagn.com
Courtesy of CHRYSLER GROUP, LLC
30. Remove under floor catalytic converter Refer to CONVERTER,
CATALYTIC, REMOVAL .
31. Lower vehicle.
32. Support engine with suitable jack.

Fig. 87: Right Engine Mount Assembly

Courtesy of CHRYSLER GROUP, LLC
33. Remove right engine mount through bolt (4).
34. Remove right engine mount to mount bracket bolts (3).
35. Remove right engine mount adapter (1).
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Fig. 88: Removing/Installing Accessory Drive Belt Upper & Lower Idler

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Pulley
Courtesy of CHRYSLER GROUP, LLC
36. Remove accessory drive upper idler pulley (1).

Fig. 89: Right Side Engine Mount Bracket, Crankshaft Damper &
Water Pump Pulley
Courtesy of CHRYSLER GROUP, LLC
37. Remove right upper engine mount bracket (1).
38. Remove accessory drive belt tensioner.
39. Remove upper timing chain cover retaining bolts.

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Fig. 90: Timing Chain Cover Pry Points
Courtesy of CHRYSLER GROUP, LLC
40. Remove timing chain cover using pry points (1, 2, 3).

Fig. 91: Timing Drive System

Courtesy of CHRYSLER GROUP, LLC
41. Remove tensioner (5) and timing chain (2) Refer to CHAIN AND

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SPROCKETS, TIMING, REMOVAL.

42. Remove timing chain guide (4) and timing chain pivot guide (6).

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Fig. 92: Disconnecting/Connecting Fuel Line At Fuel Rail
Courtesy of CHRYSLER GROUP, LLC
43. Disconnect the fuel line from the fuel rail. Refer to FITTING, QUICK
CONNECT .

Fig. 93: Fuel Injector Electrical Connectors

Courtesy of CHRYSLER GROUP, LLC
44. Unlock and disconnect the electrical connectors from the fuel injectors.

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Fig. 94: Removing/Installing Fuel Rail

Courtesy of CHRYSLER GROUP, LLC

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45. Remove two fuel rail retaining bolts and remove fuel rail.

Fig. 95: Coolant Temperature Sensor, Capacitor Electrical Connector

& Coolant Adapter
Courtesy of CHRYSLER GROUP, LLC
46. Disconnect electrical connectors from coolant temperature sensor (1), oil
temperature sensor, variable valve timing solenoids, camshaft position
sensors, MAP sensor, manifold tuning valve, ignition interference
suppressor (2) and electronic throttle control.

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Fig. 96: Throttle Body Support

Courtesy of CHRYSLER GROUP, LLC

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47. Remove wiring harness retainer from intake manifold (2) and reposition
harness.
48. Remove throttle body support bracket (1).
49. Disconnect vacuum lines at intake.

Fig. 97: Radiator Hose Support

Courtesy of CHRYSLER GROUP, LLC
50. Remove upper radiator hose retaining bolt (1).

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Fig. 98: Intake Manifold Bolt Removal & Tightening Sequence

Courtesy of CHRYSLER GROUP, LLC

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51. Remove intake manifold retaining bolts and remove intake manifold.

Fig. 99: Coolant Temperature Sensor, Capacitor Electrical Connector

& Coolant Adapter
Courtesy of CHRYSLER GROUP, LLC
52. Remove four bolts and reposition coolant adapter (3).

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Fig. 100: Ground Strap

Courtesy of CHRYSLER GROUP, LLC

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53. Remove ground strap (1) at right rear of cylinder head if equipped.

Fig. 101: Front Cam Cap Removal/Tightening Sequence

Courtesy of CHRYSLER GROUP, LLC

NOTE: Camshaft bearing caps should have been marked

during engine manufacturing. For example, number
one exhaust camshaft bearing is marked "E1>".

CAUTION: DO NOT use a number stamp or a punch to

mark camshaft bearing caps. Damage to
bearing caps could occur.

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54. Using a permanent ink or paint marker, identify location and position on
each camshaft bearing cap.
55. Remove the front camshaft bearing cap.
56. Slowly remove the remaining intake and exhaust camshaft bearing cap bolts
one turn at a time.
57. Remove the camshafts.

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Fig. 102: Front Head Bolt Washers
Courtesy of CHRYSLER GROUP, LLC

NOTE: All of the cylinder head bolts have captured washers

EXCEPT the front two (1).

58. Remove cylinder head bolts and two uncaptured washers.

59. Remove cylinder head from engine block.
60. Inspect and clean cylinder head and block sealing surfaces. Refer to
CLEANING and INSPECTION .

NOTE: Ensure cylinder head bolt holes in the block are clean,
dry (free of residual oil or coolant), and threads are not
damaged.
CLEANING

CLEANING

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Fig. 103: Proper Tool Usage For Surface Preparation

cardiagn.com
Courtesy of CHRYSLER GROUP, LLC
To ensure engine gasket sealing, proper surface preparation must be performed,
especially with the use of aluminum engine components and multi-layer steel
cylinder head gaskets.

NOTE: Multi-Layer Steel (MLS) head gaskets require a scratch

free sealing surface.

Remove all gasket material from cylinder head and block. Refer to ENGINE
GASKET SURFACE PREPARATION . Be careful not to gouge or scratch the
aluminum head sealing surface.

Clean all engine oil passages.

INSPECTION

INSPECTION

NOTE: Replacement cylinder heads will come complete with

valves, seals, springs, retainers, keepers, tappets, and
camshafts.

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Fig. 104: Checking Cylinder Head Flatness

Courtesy of CHRYSLER GROUP, LLC

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1. Check cylinder head warpage with a straight edge (2) and feeler gauge (1).
2. Cylinder head must be flat within 0.1 mm (0.004 in.).
3. Verify that the valve tappets move freely in theirs bores and that they have
been rotating.
4. Inspect camshaft bearing journals for scoring.
5. Remove carbon and varnish deposits from inside of valve guides with a
reliable guide cleaner.
6. Inspect the following components and verify that they are within
specification. Refer to SPECIFICATIONS .
Camshafts
Valve Tappets
Springs
Valve Seats
Valve Guides
Valves
7. Prior to installing cylinder head, the cylinder block should be checked for
flatness. Refer to Engine Block - INSPECTION .
INSTALLATION

INSTALLATION

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Fig. 105: Checking Cylinder Head Bolts For Stretching (Necking)

cardiagn.com
Courtesy of CHRYSLER GROUP, LLC

CAUTION: The cylinder head bolts are tightened using a

torque plus angle procedure. The bolts must be
examined BEFORE reuse. If the threads are necked
down the bolts must be replaced.

1. Check cylinder head bolts for necking by holding a scale or straight edge
against the threads. If all the threads do not contact the scale (2) the bolt
must be replaced.

Fig. 106: Variable Valve Timing Filter Screen

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Courtesy of CHRYSLER GROUP, LLC

NOTE: Ensure cylinder head bolt holes in the block are

clean, dry (free of residual oil or coolant), and threads
are not damaged.

CAUTION: Always replace the variable valve timing filter

screen (3) when servicing the head gasket or
engine damage could result.

2. Replace the variable valve timing filter screen (3).

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Fig. 107: Engine Sealant RTV Location
Courtesy of CHRYSLER GROUP, LLC

NOTE: When using RTV, the sealing surfaces must be clean

and free from grease and oil.

NOTE: When using RTV, parts should be assembled in 10

minutes and tighten to final torque within 45 minutes.

3. Place two pea size dots of Mopar® engine sealant RTV or equivalent (1) on
cylinder block as shown in illustration.

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Fig. 108: Cylinder Head Gasket RTV

Courtesy of CHRYSLER GROUP, LLC

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4. Position the new cylinder head gasket on engine block with the part number
facing up. Ensure gasket is seated over the locating dowels in block.
5. Place two pea size dots of Mopar® engine sealant RTV or equivalent (1) on
cylinder head gasket as shown in illustration.

NOTE: The head must be installed within 15 minutes before

the RTV skins.

6. Position cylinder head onto engine block.

Fig. 109: Cylinder Head Bolt Identification

Courtesy of CHRYSLER GROUP, LLC

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CAUTION: This engine was built with 2 different style

cylinder head bolts. Each style bolt requires a
different torque value. The bolts can be
identified by the short bolt head (1) and the
long bolt head (2).

7. Measure the bolt head from the washer to the top of the bolt head. The short
bolt head (1) measures 8 mm (5/16") and the long bolt head (2) measures 13
mm (1/2").
8. Identify whether your engine has the short head design (1) or the long head
design (2).

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Fig. 110: Washers Must Be Installed With Bevel Edge Up Towards Bolt
Head
Courtesy of CHRYSLER GROUP, LLC

NOTE: The front two cylinder head bolts do not have

captured washers. The washers must be installed
with the bevel edge (1) up towards the bolt head.

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Fig. 111: Front Head Bolt Washers

Courtesy of CHRYSLER GROUP, LLC

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9. Install washers (1) for the front two cylinder head bolts with the beveled
edge facing up.

Fig. 112: Cylinder Head Torque Sequence

Courtesy of CHRYSLER GROUP, LLC

NOTE: Before installing the cylinder head bolts, lubricate the

threads with clean engine oil.

10. Install the cylinder head bolts and tighten in the sequence shown in
illustration.

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Fig. 113: Cylinder Head Bolt Identification

Courtesy of CHRYSLER GROUP, LLC

cardiagn.com
11. If your bolt has the short head (1), use the following torque specifications:
First: All to 30 N.m (25 ft. lbs.)
Second: All to 61 N.m (45 ft. lbs.)
Third: All to 61 N.m (45 ft. lbs.)
Fourth: All an additional 90°

CAUTION: Do not use a torque wrench for the Fourth

step.

12. If your bolt has the long head (2), use the following torque specifications:
First: All to 30 N.m (25 ft. lbs.)
Second: All to 73 N.m (54 ft. lbs.)
Third: All to 73 N.m (54 ft. lbs.)
Fourth: All an additional 90°

CAUTION: Do not use a torque wrench for the Fourth

step.

13. Clean excess RTV from the timing chain cover sealing surface.

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Fig. 114: Coolant Temperature Sensor, Capacitor Electrical Connector

& Coolant Adapter

cardiagn.com
Courtesy of CHRYSLER GROUP, LLC
14. Install coolant adapter (3) with new seals. Tighten bolts to 18.1 N.m (159 in.
lbs.).

Fig. 115: Cam Cap Bearing Identification

Courtesy of CHRYSLER GROUP, LLC
15. The front camshaft bearing cap (1) is numbered (2) either one, two, or three,
this corresponds to the select fit front exhaust camshaft bearing to use.

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Fig. 116: Cam Bearing Identification

Courtesy of CHRYSLER GROUP, LLC

cardiagn.com
16. Install the corresponding select fit front exhaust camshaft bearing (1).
17. Oil all of the camshaft journals with clean engine oil.

Fig. 117: Camshaft Timing

Courtesy of CHRYSLER GROUP, LLC
18. Position exhaust camshaft (1) and intake camshaft (2) on bearing journals in
the cylinder head.
19. Align camshaft timing marks (3) so that they are facing each other and are in
line with the cylinder head cover sealing surface.

CAUTION: Install the front intake and exhaust camshaft

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bearing cap last. Ensure that the dowels are

seated and follow torque sequence or damage
to engine could result.

NOTE: If the front camshaft bearing cap is broken, the

cylinder head MUST be replaced.

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Fig. 118: Cam Cap Torque Sequence
Courtesy of CHRYSLER GROUP, LLC
20. Install intake and exhaust camshaft bearing caps and slowly tighten bolts to
9.5 N.m (85 in. lbs.) in the sequence shown in illustration.

NOTE: Verify that the exhaust bearing shells are correctly

installed, and the dowels are seated in the head, prior
to torquing bolts.

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Fig. 119: Front Cam Cap Removal/Tightening Sequence

Courtesy of CHRYSLER GROUP, LLC

cardiagn.com
NOTE: This torque sequence is for vehicles with the round
hole for the Front Cam Cap Dowel located on the
intake side of the cylinder head.

21. Install the front intake and exhaust bearing cap and tighten bolts to 25 N•m
(18 ft. lbs.) in the sequence shown in illustration.

Fig. 120: Front Cam Cap Removal/Tightening Sequence

Courtesy of CHRYSLER GROUP, LLC

NOTE: This torque sequence is for vehicles with the round

hole for the Front Cam Cap Dowel located on the

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exhaust side of the cylinder head.

22. Install the front intake and exhaust bearing cap and tighten bolts to 25 N.m
(18 ft. lbs.) in the sequence shown in illustration.

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Fig. 121: Timing Drive System
Courtesy of CHRYSLER GROUP, LLC
23. Install timing chain guide (4) and tighten bolts to 12 N.m (105 in. lbs.).
24. Install the moveable timing chain pivot guide (6) and tighten bolt to 12 N.m
(105 in. lbs.).
25. Install timing chain (2) and tensioner (5). Refer to CHAIN AND
SPROCKETS, TIMING, INSTALLATION.
26. Install timing chain cover, engine mount, pulleys and accessory drive belt.
Refer to COVER(S), ENGINE TIMING, INSTALLATION.

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Fig. 122: Cylinder Head Cover Bolt Torque Sequence

Courtesy of CHRYSLER GROUP, LLC

cardiagn.com
27. Install cylinder head cover and ignition coils. Refer to COVER(S),
CYLINDER HEAD, INSTALLATION.

Fig. 123: Oxygen Sensor Connector, Catalytic Converter & Bolts

Courtesy of CHRYSLER GROUP, LLC
28. Install exhaust manifold. Refer to MANIFOLD, EXHAUST,
INSTALLATION.

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Fig. 124: Ground Strap

Courtesy of CHRYSLER GROUP, LLC

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29. Install ground strap (1) at right rear of cylinder head if equipped.

Fig. 125: Intake Bolt Removal/Tightening Sequence

Courtesy of CHRYSLER GROUP, LLC
30. Install intake manifold, vacuum lines and fuel rail. Refer to MANIFOLD,
INTAKE, INSTALLATION.

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Fig. 126: Ignition Coils, Air Hose, Fuel Line, Injectors & PCV Hose
Courtesy of CHRYSLER GROUP, LLC

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31. Connect coil (1) and injector (4) electrical connectors.

Fig. 127: Coolant Temperature Sensor, Capacitor Electrical Connector

& Coolant Adapter
Courtesy of CHRYSLER GROUP, LLC
32. Connect electrical connectors to coolant temperature sensor (1), camshaft
position sensors, oil temperature sensor, variable valve timing solenoids,
MAP sensor, manifold tuning valve, ignition interference suppressor (2) and
electronic throttle control.

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Fig. 128: Windshield Washer Reservoir, Power Steering Reservoir &

Coolant Reservoir

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Courtesy of CHRYSLER GROUP, LLC
33. Install power steering pump reservoir (2). Tighten mounting screw to 12
N.m (106 in. lbs.).
34. Install coolant recovery reservoir (1). Tighten mounting bolts to 10 N.m (89
in. lbs.).

Fig. 129: Air Cleaner Housing & Retaining Bolt

Courtesy of CHRYSLER GROUP, LLC
35. Install clean air hose (1) and air cleaner housing (2). Refer to BODY, AIR
CLEANER, INSTALLATION.
36. Fill cooling system. Refer to STANDARD PROCEDURE .

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37. Install new oil filter and fill engine with oil.
38. Connect negative battery cable.

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Fig. 130: Engine Cover - 2.4L
Courtesy of CHRYSLER GROUP, LLC
39. Operate engine until it reaches normal operating temperature. Check oil and
cooling systems for leaks and correct fluid levels.
40. Install engine cover (1).
ASSEMBLY, VARIABLE VALVE TIMING

DESCRIPTION

DESCRIPTION

The world engine is equipped with Variable Valve Timing (VVT). This system
advances and/or retards intake and/or exhaust camshaft timing to improve engine
performance, mid-range torque, idle quality, fuel economy, and reduce
emissions. The camshaft sprockets are integrated with the VVT assemblies and
are serviced as an assembly. VVT assemblies are sometimes referred to as
camshaft phasers.
OPERATION

OPERATION

The Variable Valve Timing (VVT) assemblies are actuated with engine oil
pressure. The oil flow to the VVT assemblies are controlled by two Oil Control
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Valves (OCV). There is an OCV and Camshaft Position Sensor (CMP) for each
camshaft. The OCV's consist of a Pulse Width Modulated (PWM) solenoid and a
spool valve. The PCM actuates the OCV to control oil flow through the spool
valve into the VVT assemblies. The VVT assembly consists of a rotor, stator,
and sprocket. The stator is connected to the timing chain through the sprocket.
The rotor is connected to the camshaft. Oil flow in to the VVT assembly rotates
the rotor with respect to the stator, thus rotating the camshaft with respect to the
timing chain. Thus, the VVT assemblies change valve timing by changing the
relationship between the camshaft and the timing chain. An integral oil pressure
activated pin is used to lock base camshaft timing for engine start up. Oil
pressure releases the pin and allows the PCM to control cam timing once the
engine is running. An infinitely variable valve timing position can be achieved
within the limits of the hardware. The CMP monitors the position of the camshaft

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with respect to the crankshaft and provides feedback to the PCM.
REMOVAL

REMOVAL

NOTE: Camshaft phaser and camshaft sprocket are supplied as

an assembly, do not attempt to disassemble.

Fig. 131: Camshaft Phaser Removal & Installation

Courtesy of CHRYSLER GROUP, LLC
1. Remove camshafts. Refer to CAMSHAFT, ENGINE, REMOVAL.
2. Remove camshaft phaser (2) retaining bolt while holding the camshaft in
place with a wrench (1) on the camshaft flats.

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3. Remove phaser (2) assembly from camshaft.

INSTALLATION

INSTALLATION

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Fig. 132: Camshaft Phaser Removal & Installation
Courtesy of CHRYSLER GROUP, LLC

CAUTION: Do not use an impact wrench to tighten camshaft

sprocket bolts. Damage to the camshaft-to-
sprocket locating dowel pin and camshaft phaser
may occur.

1. Install phaser (2) assembly on camshaft.

NOTE: Make sure the dowel is seated in the dowel hole and
not in a oil feed hole. The dowel hole is larger than
the 4 oil feed holes.

2. Install phaser retaining bolt. Hold camshaft in place with a wrench (1) and
tighten bolt to 59 N.m (44 ft. lbs.).
3. Install camshafts. Refer to CAMSHAFT, ENGINE, INSTALLATION.
BUCKET, TAPPET

DIAGNOSIS AND TESTING

DIAGNOSIS AND TESTING - MECHANICAL VALVE TAPPET NOISE DIAGNOSIS

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A tappet-like noise may be produced from incorrect valve lash. Refer to

STANDARD PROCEDURE .
STANDARD PROCEDURE

STANDARD PROCEDURE - MEASURING VALVE LASH

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Fig. 133: Removing/Installing Cylinder Head Cover Bolts In Sequence
Courtesy of CHRYSLER GROUP, LLC

NOTE: The engine must be cold to measure valve lash.

1. Remove engine cover.

2. Remove cylinder head cover. Refer to COVER(S), CYLINDER HEAD,
REMOVAL.

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Fig. 134: Identifying Camshaft So Lobes Are Vertical

cardiagn.com
Courtesy of CHRYSLER GROUP, LLC
3. Rotate camshaft so lobes are vertical (1).
4. Check clearance using feeler gauges.
5. Repeat for all tappets and record readings.
6. If clearance was too small, refer to CLEARANCE TOO SMALL
procedure.
7. If clearance was too large, refer to CLEARANCE TOO LARGE
procedure.
CLEARANCE TOO SMALL

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Fig. 135: Tappet Identification

Courtesy of CHRYSLER GROUP, LLC
1. Remove camshafts. Refer to CAMSHAFT, ENGINE, REMOVAL.
2. Specification - clearance = change.
3. Decrease tappet thickness by change figure.
4. Install camshafts. Refer to CAMSHAFT, ENGINE, INSTALLATION.
5. Verify that valve lash is correct.
CLEARANCE TOO LARGE

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Fig. 136: Tappet Identification
Courtesy of CHRYSLER GROUP, LLC
1. Remove camshafts. Refer to CAMSHAFT, ENGINE, REMOVAL.
2. Clearance - specification = change.
3. Increase tappet thickness by change figure.
4. Install camshafts. Refer to CAMSHAFT, ENGINE, INSTALLATION.
5. Verify that valve lash is correct.
REMOVAL

REMOVAL

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Fig. 137: Cylinder Head Cover Bolts Torque Sequence

Courtesy of CHRYSLER GROUP, LLC

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NOTE: This procedure is for in-vehicle service with camshafts
installed.

NOTE: Camshaft tappets must be replaced if cylinder head or

camshafts are replaced.

1. Remove cylinder head cover. Refer to COVER(S), CYLINDER HEAD,

REMOVAL.
2. Remove camshafts. Refer to CAMSHAFT, ENGINE, REMOVAL.

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Fig. 138: Tappet Identification

Courtesy of CHRYSLER GROUP, LLC
3. Remove camshaft tappets (1).
4. Repeat removal procedure for each camshaft tappet (1).
5. If reusing, mark each tappet for reassembly in original position.
INSTALLATION

INSTALLATION

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Fig. 139: Tappet Identification
Courtesy of CHRYSLER GROUP, LLC

NOTE: If reinstalling original tappets they must go back in their

original location or engine damage could result.

1. Apply a light coat of clean engine oil to camshafts tappets (1) prior to
assembly.
2. Install camshaft tappets (1) into cylinder head.
3. Repeat installation procedure for each camshaft tappet.
4. Install camshafts. Refer to CAMSHAFT, ENGINE, INSTALLATION.

NOTE: If installing new tappets, the valve lash procedure

must be performed.

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Fig. 140: Cylinder Head Cover Bolts Torque Sequence

Courtesy of CHRYSLER GROUP, LLC

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5. Install cylinder head cover. Refer to COVER(S), CYLINDER HEAD,
INSTALLATION.
CAMSHAFT, ENGINE

DESCRIPTION

DESCRIPTION

Both camshafts have five bearing journal surfaces and two cam lobes per
cylinder. The two front journals are larger to allow for feeding oil to the variable
valve timing (VVT) camshaft phasers. Flanges on the third smaller journal
control camshaft end play. At the rear of each camshaft is an integral cam sensor
target.
CAMSHAFT BEARING CAPS

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Fig. 141: Uneven Wear Patterns On Cam Bearing

Courtesy of CHRYSLER GROUP, LLC

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The front cam bearing cap spans both camshafts, and includes dowels for precise
alignment. The front exhaust camshaft journal has a select fit bearing insert. This
bearing is required to seal the oil passage to the camshaft phaser, because a
portion of the lower bearing saddle is machined away for head bolt access. The
select fit is required to minimize bearing clearance and oil leakage. An exhaust
bearing grade (1, 2, or 3) is stamped into the front bearing cap adjacent to the
exhaust cam journal. The bearings are also marked with the corresponding grade
markings. If the bearing is replaced, the same grade must be used. Due to the
unique purpose of this bearing, it may appear to have uneven wear patterns (1).
Maximum wear of 0.05 mm (.002 in.) is acceptable. Unless the wear is excessive
it is no cause for concern and the bearing should not be replaced. Cam bearing
inspection should not be the sole reason for removal of the exhaust camshaft. The
upper cam bearing may be replaced if the front bearing cap is removed. The
lower cam bearing should be replaced if the camshaft is removed due to a failure
of a component within the cylinder head.
The front intake cam journal has a full lower bearing saddle, and therefore, no
bearing insert is required.

All small bearing caps have a formed-in arrow to assist in assembly. All small
bearing cap arrows must point towards the center of the cylinder head. The small
bearing caps are marked for position during the manufacturing process, and must
be reinstalled in their original position.

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The #1 small cap includes a passage to direct oil from the cylinder head oil
gallery to the #1 small bearing journal, and into the camshaft as well. The hollow
camshaft then distributes oil to the remainder of the small journals. Oil flowing
out of each cam journal lubricates the valve tappets.
The #3 small cap is machined at the front and rear face to control camshaft end-
play. This cap has dowels for precise alignment.
OPERATION

OPERATION

The camshaft is driven by the crankshaft via drive sprockets and a chain. The
camshaft has precisely machined lobes to provide accurate valve timing and
duration.

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STANDARD PROCEDURE

STANDARD PROCEDURE - MEASURING CAMSHAFT END PLAY

Fig. 142: Camshaft End Play

Courtesy of CHRYSLER GROUP, LLC
1. Using a suitable tool, move camshaft as far rearward as it will go.
2. Zero dial indicator.
3. Move camshaft as far forward as it will go.
4. Record reading on dial indicator. For end play specification, refer to
SPECIFICATIONS .
5. If end play is excessive, check cylinder head and camshaft for wear; replace
as necessary.

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REMOVAL

REMOVAL

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Fig. 143: Engine Cover - 2.4L
Courtesy of CHRYSLER GROUP, LLC
1. Remove engine cover (1) by pulling upward.
2. Disconnect and isolate the negative battery cable.
3. Remove cylinder head cover. Refer to COVER(S), CYLINDER HEAD,
REMOVAL.

Fig. 144: Setting Engine To Top Dead Center

Courtesy of CHRYSLER GROUP, LLC

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4. Raise and support the vehicle. Refer to HOISTING, STANDARD

PROCEDURE .
5. Remove the frame cover portion of the right splash shield. Refer to
SHIELD, SPLASH, FRONT WHEELHOUSE, REMOVAL .
6. Rotate engine to TDC (1).

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Fig. 145: Timing Chain Timing Marks
Courtesy of CHRYSLER GROUP, LLC
7. Make sure camshaft timing marks (3) are in line with the cylinder head
cover sealing surface.
8. Mark the chain link corresponding to timing marks (1) with a paint marker.

Fig. 146: Tensioner Access Plug

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Courtesy of CHRYSLER GROUP, LLC

9. Remove timing tensioner plug (1) from front cover.

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Fig. 147: Tensioner Reset
Courtesy of CHRYSLER GROUP, LLC
10. Insert small Allen wrench through timing tensioner plug hole and lift ratchet
(2) upward to release the tensioner and push Allen wrench inward. Leave the
Allen wrench installed during the remainder of this procedure.

Fig. 148: Inserting Wedge 9701 Between Camshaft Phasers

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Courtesy of CHRYSLER GROUP, LLC

11. Insert Locking Wedge (special tool #9701, Wedge, Locking) (1) between
camshaft phasers.

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Fig. 149: Seating Wedge Tool 9701
Courtesy of CHRYSLER GROUP, LLC
12. Lightly tap Locking Wedge (special tool #9701, Wedge, Locking) (2) into
place until it will no longer sink down.

Fig. 150: Front Cam Cap Removal/Tightening Sequence

Courtesy of CHRYSLER GROUP, LLC

NOTE: Camshaft bearing caps should have been marked

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during engine manufacturing. For example, number

one exhaust camshaft bearing is marked "E1>".

CAUTION: DO NOT use a number stamp or a punch to

mark camshaft bearing caps. Damage to
bearing caps could occur.

13. Using a permanent ink or paint marker, identify location and position on
each camshaft bearing cap.
14. Remove the front camshaft bearing cap.
15. Slowly remove the remaining intake and exhaust camshaft bearing cap bolts
one turn at a time.

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Fig. 151: Raise Intake Cam
Courtesy of CHRYSLER GROUP, LLC
16. Remove intake camshaft (1) by lifting the rear of the camshaft upward.

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Fig. 152: Roll Camshaft

Courtesy of CHRYSLER GROUP, LLC

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17. Rotate the camshaft while lifting out of the front bearing cradle.

Fig. 153: Chain Removal

Courtesy of CHRYSLER GROUP, LLC
18. Lift the timing chain (2) off the sprocket (1).
19. Remove exhaust camshaft.
20. Secure timing chain with wire so that it does fall into the timing chain cover.
INSPECTION

INSPECTION

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1. Inspect camshaft bearing journals for damage. If journals are damaged,

check the cylinder head for damage. Also check cylinder head oil holes for
clogging.
2. Check the cam lobe and bearing surfaces for abnormal wear and damage.
Replace camshaft if defective.

NOTE: If camshaft is replaced due to lobe wear or damage,

always replace the lash buckets.
INSTALLATION

INSTALLATION

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Fig. 154: Cam Cap Bearing Identification
Courtesy of CHRYSLER GROUP, LLC
1. The front camshaft bearing cap (1) is numbered (2) either one, two, or three,
this corresponds to the select fit front exhaust camshaft bearing to use.

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Fig. 155: Cam Bearing Identification

Courtesy of CHRYSLER GROUP, LLC

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2. Install the corresponding select fit front exhaust camshaft bearing (1).
3. Oil all of the camshaft journals with clean engine oil.
4. Install camshaft phasers on camshafts if removed. Refer to ASSEMBLY,
VARIABLE VALVE TIMING, INSTALLATION.

Fig. 156: Timing Chain Timing Marks

Courtesy of CHRYSLER GROUP, LLC
5. Install timing chain onto exhaust cam sprocket making sure that the timing
marks (1) on the sprocket and the painted chain link are aligned.
6. Position exhaust camshaft and on bearing journals in the cylinder head.
7. Align exhaust cam timing mark (3) so it is in line with the cylinder head
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cover sealing surface (2).

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Fig. 157: Removing/Installing Intake Camshaft
Courtesy of CHRYSLER GROUP, LLC
8. Install intake camshaft by raising the rear of the camshaft upward and roll
the sprocket into the chain.

Fig. 158: Timing Chain Timing Marks

Courtesy of CHRYSLER GROUP, LLC
9. Align the timing marks (1) on the intake cam sprocket with the painted
chain link.
10. Position the intake camshaft into the bearing journals in the cylinder head.
11. Verify that the timing marks (1) are aligned on both camshafts and that the

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timing marks (3) are facing each other and are in line with the cylinder head
cover sealing surface (2).

CAUTION: Install the front intake and exhaust camshaft

bearing cap last. Ensure that the dowels are
seated and follow torque sequence or damage
to engine could result.

NOTE: If the front camshaft bearing cap is broken, the

cylinder head MUST be replaced.

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Fig. 159: Cam Cap Torque Sequence
Courtesy of CHRYSLER GROUP, LLC
12. Install intake and exhaust camshaft bearing caps and slowly tighten bolts to
9.5 N.m (85 in. lbs.) in the sequence shown in illustration.

NOTE: Verify that the exhaust bearing shells are correctly

installed, and the dowels are seated in the head, prior
to torquing bolts.

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Fig. 160: Front Cam Cap Removal/Tightening Sequence

Courtesy of CHRYSLER GROUP, LLC

cardiagn.com
NOTE: This torque sequence is for vehicles with the round
hole for the Front Cam Cap Dowel located on the
intake side of the cylinder head.

13. Install the front intake and exhaust bearing cap and tighten bolts to 25 N.m
(18 ft. lbs.) in the sequence shown in illustration.

Fig. 161: Front Cam Cap Removal/Tightening Sequence

Courtesy of CHRYSLER GROUP, LLC

NOTE: This torque sequence is for vehicles with the round

hole for the Front Cam Cap Dowel located on the

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exhaust side of the cylinder head.

14. Install the front intake and exhaust bearing cap and tighten bolts to 25 N.m
(18 ft. lbs.) in the sequence shown in illustration.

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Fig. 162: Timing Chain Timing Marks
Courtesy of CHRYSLER GROUP, LLC
15. Verify that all timing marks (1, 3) are aligned.
16. Remove Allen wrench from timing chain tensioner.

Fig. 163: Inserting Wedge 9701 Between Camshaft Phasers

Courtesy of CHRYSLER GROUP, LLC

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17. Remove Locking Wedge (special tool #9701, Wedge, Locking) (1) by
pulling straight upward on pull rope.

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Fig. 164: Tensioner Access Plug
Courtesy of CHRYSLER GROUP, LLC
18. Apply MOPAR® thread sealant to timing tensioner plug (1) and Install.
19. Rotate the crankshaft CLOCKWISE two complete revolutions until the
crankshaft is repositioned at the TDC position.

Fig. 165: Camshaft Timing

Courtesy of CHRYSLER GROUP, LLC
20. Verify that the camshafts timing marks (3) are in the proper position and in

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line with the cylinder head cover sealing surface. If the marks do not line up,
the timing chain is not correctly installed.
21. Install right splash shield. Refer to SHIELD, SPLASH, FRONT
WHEELHOUSE, INSTALLATION .

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Fig. 166: Cylinder Head Cover Gaskets Location
Courtesy of CHRYSLER GROUP, LLC
22. Remove RTV from gasket (1).
23. Inspect cylinder head cover gaskets (1, 2) for damage. If no damage is
present, gaskets can be re-installed.

Fig. 167: Cylinder Head Cover Bolt Torque Sequence

Courtesy of CHRYSLER GROUP, LLC

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24. Install cylinder head cover. Refer to COVER(S), CYLINDER HEAD,

INSTALLATION.
25. Connect negative battery cable.
26. Fill cooling system. Refer to STANDARD PROCEDURE .
27. Fill with oil.

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Fig. 168: Engine Cover - 2.4L
Courtesy of CHRYSLER GROUP, LLC
28. Operate engine until it reaches normal operating temperature. Check oil and
cooling systems for correct fluid levels.
29. Install engine cover (1).
COVER(S), CYLINDER HEAD

REMOVAL

REMOVAL

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Fig. 169: Engine Cover

cardiagn.com
Courtesy of CHRYSLER GROUP, LLC
1. Remove engine cover (1) by pulling upward.
2. Disconnect and isolate the negative battery cable.

Fig. 170: Ignition Coils, Air Hose, Fuel Line, Injectors & PCV Hose
Courtesy of CHRYSLER GROUP, LLC
3. Remove make up air hose (2).
4. Remove PCV hose (5).
5. Disconnect ignition coil electrical connectors (1).

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Fig. 171: Removing/Installing Cylinder Head Cover Bolts - Torque

Sequence

cardiagn.com
Courtesy of CHRYSLER GROUP, LLC
6. Use compressed air to blow dirt and debris off the cylinder head cover prior
to removal.
7. Remove cylinder head cover bolts.
8. Remove cylinder head cover from cylinder head.
INSTALLATION

INSTALLATION

Fig. 172: Cylinder Head Cover Gaskets Location

Courtesy of CHRYSLER GROUP, LLC

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1. Install new cylinder head cover gaskets (1, 2).

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Fig. 173: Cylinder Head Stud Installation Sequence
Courtesy of CHRYSLER GROUP, LLC
2. Install studs in cover as shown in illustration.

Fig. 174: Head Cover T-Joint

Courtesy of CHRYSLER GROUP, LLC
3. Clean all RTV from cylinder head. Refer to ENGINE GASKET
SURFACE PREPARATION .

NOTE: When using RTV, the sealing surfaces must be clean

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and free from grease and oil.

NOTE: When using RTV, parts should be assembled in 10

minutes and tighten to final torque within 45 minutes.

4. Apply a dot of Mopar® engine sealant RTV or equivalent to cylinder

head/front cover T-joint (1).

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Fig. 175: Remove/Install Cylinder Head Cover Bolts In Sequence
Courtesy of CHRYSLER GROUP, LLC
5. Install cylinder head cover assembly to cylinder head and install all bolts,
ensuring the studs are located as shown in illustration.
6. Tighten bolts in sequence shown in illustration using a 2 step torque method
as follows:
a. Tighten all bolts to 5 N.m (44 in. lbs.).
b. Tighten all bolts to 10 N.m (90 in. lbs.).

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Fig. 176: Ignition Coils, Air Hose, Fuel Line, Injectors & PCV Hose
Courtesy of CHRYSLER GROUP, LLC

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7. Install ignition coils. Tighten fasteners to 8 N.m (70 in. lbs.).
8. If the PCV valve was removed, tighten PCV valve to 5 N.m (44 in. lbs.).
9. Connect coil electrical connectors (1).
10. Connect PCV hose (5) to PCV valve.
11. Connect make up air hose (2).

Fig. 177: Engine Cover

Courtesy of CHRYSLER GROUP, LLC
12. Connect negative battery cable.

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13. Install engine cover (1) by pressing the rear of the cover down first.
SPRING(S), VALVE

REMOVAL

CYLINDER HEAD ON

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Fig. 178: Valve Removal
Courtesy of CHRYSLER GROUP, LLC
1. Remove cylinder head cover. Refer to COVER(S), CYLINDER HEAD,
REMOVAL.
2. Remove camshafts. Refer to CAMSHAFT, ENGINE, REMOVAL.
3. Mark valve tappet location for assembly.
4. Remove valve tappets.
5. Rotate crankshaft until piston is at TDC on compression.
6. With air hose attached to adapter tool installed in spark plug hole, apply 90-
120 psi air pressure.

CAUTION: Care must be taken not to damage the tappet

bore or engine damage may result.

7. Using metric valve keeper tool (1) such as Snap-on® GA317 (or
equivalent), and remove valve spring keepers and retainer.
8. Remove valve spring(s).
9. Remove valve stem seal(s) by a using valve stem seal tool.

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CYLINDER HEAD OFF

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Fig. 179: Valve Removal
Courtesy of CHRYSLER GROUP, LLC
1. With cylinder head removed from cylinder block, place a ball of rags in the
combustion chamber.

CAUTION: Care must be taken not to damage the tappet

bore or engine damage may result.

2. Mark valve tappet location for assembly.

3. Remove valve tappets.
4. Using metric valve keeper tool such as Snap-on® GA317 (or equivalent)
remover (1), remove valve keepers with a downward push.
5. Remove retainer and springs.
6. Before removing valves, remove any burrs from valve stem lock grooves
to prevent damage to the valve guides. Identify valves, locks and retainers
to insure installation in original location.
7. Inspect the valves. Refer to Valve - INSPECTION .
INSPECTION

INSPECTION

1. Whenever valves have been removed for inspection, reconditioning or

replacement, valve springs should be tested for correct load. Discard the
springs that do not meet specifications. The following specifications apply

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to both intake and exhaust valves springs:

Valve closed nominal load - 179.5 N ± 9 N @ 35.0 mm (40.35 lbs. ± 2
lbs. @ 1.38 in.).
Valve open nominal load - 364.8 N ± 17 N @ 29.25 mm (82 lbs. ± 3.8
lbs. @ 1.152 in.).
2. Inspect each valve spring for squareness with a steel square and surface
plate, test springs from both ends. If the spring is more than 1.5 mm (1/16
inch) out of square, install a new spring.
INSTALLATION

CYLINDER HEAD ON

CAUTION: Care must be taken not to damage the tappet bore

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or engine damage may result.

Fig. 180: Valve Spring Assembly

Courtesy of CHRYSLER GROUP, LLC
1. Install valve seal/valve spring seat (3) assembly. Push the assembly down
with appropriate size socket to seat it onto the valve guide.
2. Install valve spring (2) and retainer (4) with keepers (1).

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Fig. 181: Valve Installation

Courtesy of CHRYSLER GROUP, LLC

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3. Place the valve keepers in the retainer. Using metric valve keeper tool such
as Snap-on® GA317 (or equivalent) installer (2) and remover (1) as a
handle, install valve keepers with a downward push.
4. Remove air hose and install spark plugs.
5. Install valve tappets.
6. Install camshafts. Refer to CAMSHAFT, ENGINE, INSTALLATION.
7. Install cylinder head cover. Refer to COVER(S), CYLINDER HEAD,
INSTALLATION.
CYLINDER HEAD OFF

CAUTION: Care must be taken not to damage the tappet bore

or engine damage may result.

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Fig. 182: Valve Spring Assembly

Courtesy of CHRYSLER GROUP, LLC

cardiagn.com
1. Coat valve stems with clean engine oil and insert in cylinder head.
2. Install new valve stem seals (3) on all valves using an appropriate sized
socket to seat the seal/spring seat. The valve stem seals should be pushed
firmly and squarely over valve guide.
3. Install valve springs (2).
4. Install keepers in retainer and place on valve spring.

Fig. 183: Valve Installation

Courtesy of CHRYSLER GROUP, LLC
5. Using metric valve keeper tool such as Snap-on® GA317 (or equivalent)
installer (2) and remover (1) as a handle, push downward to install keepers.

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Fig. 184: Spring Installed Height And Valve TIP To Spring Seat
Dimensions
Courtesy of CHRYSLER GROUP, LLC
6. Check the valve spring installed height B after refacing the valve and seat.
Make sure measurements are taken from top of spring seat to the bottom

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surface of spring retainer. If height is greater than 38.75 mm (1.525 in.),
install a 0.762 mm (0.030 in.) spacer under the valve spring seat to bring
spring height back within specification.
7. Install valve tappets.
VALVES, INTAKE AND EXHAUST

DESCRIPTION

DESCRIPTION

The valves are made of heat resistant steel. They have nitrided stems to prevent
scuffing. Viton rubber valve stem seals are integral with the spring seats. The
valves have a single bead lock keepers to retain the springs.
OPERATION

OPERATION

The four valves per cylinder (two intake and two exhaust) are opened by using
direct acting tappets which are actuated by the camshaft.
CLEANING

CLEANING

Clean all valves thoroughly and discard burned, warped and cracked valves.

CAUTION: Due to the small margin on the valves, grinding is

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not recommended.

ENGINE MOUNTING
DESCRIPTION

DESCRIPTION

The engine mounting system consists of a four-point system utilizing two load-
carrying mounts and two torque controlling mounts. The load-carrying mounts
are located on each frame rail. The right and left mounts are hydro-elastic
mounts. The two torque controlling mounts are attached to a fore/aft member and
the front and rear of the engine.
OPERATION

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OPERATION

The four-point engine mounting system minimizes the transmission of structure-

borne engine noise to the passenger compartment. The load-carrying right and
left mounts dampen and isolate vertical motion and vibration. The front and rear
mount absorb torque reaction forces and torsional vibrations.
INSULATOR, ENGINE MOUNT, FRONT

REMOVAL

REMOVAL

Fig. 185: Front Mount Through Bolt

Courtesy of CHRYSLER GROUP, LLC

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1. Raise vehicle.
2. Remove fore aft member (3) to mount (4) bolts.
3. Remove mount through bolt (1).
4. Remove fore aft member (3) mounting bolts and remove.
5. Remove front mount (4).
INSTALLATION

INSTALLATION

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Fig. 186: Front Mount Through Bolt
Courtesy of CHRYSLER GROUP, LLC
1. Position mount (4) and torque bolts to 47 N.m (35 ft. lbs.).
2. Install fore aft member (3) and torque bolts to 100 N.m (74 ft. lbs.).

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cardiagn.com
Fig. 187: Front Mount Through Bolt
Courtesy of CHRYSLER GROUP, LLC
3. Install the mount through bolt (1) finger tight.

NOTE: It will be necessary to adjust the mount to set the

proper air gap at the base of the isolator. With the
through bolt in place, pulling downward on the front
(left bank) will increase the air gap. To reduce the air
gap, raise the front (left bank) of the engine.

Fig. 188: Achieving Proper Clearance Between Points A And B

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Courtesy of CHRYSLER GROUP, LLC

4. Raise or lower the engine to achieve the proper clearance between points a
and b. There MUST be 5 millimeters airspace between the two points.

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Fig. 189: Front Mount Through Bolt
Courtesy of CHRYSLER GROUP, LLC
5. Once the clearance is set, torque the through bolt (1) to 47 N.m (35 ft. lbs.).
6. Relax the engine and verify the clearance is still set.
7. Lower the vehicle.
8. Start the engine, check for vibrations.
INSULATOR, ENGINE MOUNT, LEFT

REMOVAL

REMOVAL

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Fig. 190: Retainers, Fresh Air Inlet Duct & Air Cleaner Body
Courtesy of CHRYSLER GROUP, LLC

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1. Unlock the retainers (2) and remove the fresh air inlet duct (3) from air
cleaner body (1).

Fig. 191: Electrical Connectors, PCM, Three Mounting Bolts & Ground
Wire
Courtesy of CHRYSLER GROUP, LLC
2. Disconnect and isolate the negative battery cable.
3. Unlock and disconnect the electrical connectors (2) from the PCM (4).
4. Remove the mounting bolt (3) and ground wire (1).

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Fig. 192: Air Cleaner Body, Air Inlet Tube & Make-Up Air Hose
Courtesy of CHRYSLER GROUP, LLC

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5. Remove the air inlet tube (2) from the air cleaner body (1).
6. Disconnect the make-up air hose (3) from the air cleaner body.
7. Remove the support bracket bolt from the strut tower.
8. Pull upward to disengage the pins from the rubber grommets and remove the
air cleaner body (1).

Fig. 193: Left Engine Mount Assembly

Courtesy of CHRYSLER GROUP, LLC
9. Support the transaxle with a suitable jack.
10. Remove the left mount through bolt (3).

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11. Remove the left mount bracket to body frame rail fasteners (1).
12. Remove the mount (2).
INSTALLATION

INSTALLATION

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Fig. 194: Left Engine Mount Assembly
Courtesy of CHRYSLER GROUP, LLC
1. Position mount (2) in place.
2. Install left mount to frame rail bolts (1) and torque to 75 N.m (55 ft. lbs.).
3. Install mount through bolt (3) and torque to 100 N.m (74 ft. lbs.).
4. Remove jack.

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Fig. 195: Air Cleaner Body, Air Inlet Tube & Make-Up Air Hose
Courtesy of CHRYSLER GROUP, LLC
5. Push down on the air cleaner body (1) to engage the pins into the grommets.
6. Install the support bracket bolt to the strut tower and tighten to 10 N.m (89
in. lbs.).
7. Install the air inlet tube (2) to the air cleaner body (1).
8. Connect the make-up air hose (3) to the air cleaner body.

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Fig. 196: Electrical Connectors, PCM, Three Mounting Bolts & Ground
Wire
Courtesy of CHRYSLER GROUP, LLC
9. Install the mounting bolt (3) with ground wire (1) and tighten to 12 N.m
(106 in. lbs.).
10. Connect and lock the electrical connectors (2).

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Fig. 197: Retainers, Fresh Air Inlet Duct & Air Cleaner Body
Courtesy of CHRYSLER GROUP, LLC

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11. Connect the negative battery cable and tighten nut to 5 N.m (45 in. lbs.).
12. Install the fresh air inlet duct (3) on the air cleaner body (1) and lock the
retainers (2).
INSULATOR, ENGINE MOUNT, REAR

REMOVAL

REMOVAL

Fig. 198: Rear Mount Through Bolt, Oxygen Sensor Connector, Rear
Mount & Rear Mount Retaining Bolts
Courtesy of CHRYSLER GROUP, LLC

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1. Remove rear mount retaining bolts (4).

2. Remove rear mount through bolt (1).
3. Remove oxygen sensor connector (2) from mount.
4. Remove rear mount (3).
INSTALLATION

INSTALLATION

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Fig. 199: Rear Mount Through Bolt, Oxygen Sensor Connector, Rear
Mount & Rear Mount Retaining Bolts
Courtesy of CHRYSLER GROUP, LLC
1. Position rear mount (3).
2. Install rear mount retaining bolts (4) and tighten to 50 N.m (37 ft. lbs.).
3. Install rear mount through bolt (1) and tighten to 47 N.m (35 ft. lbs.).
4. Install oxygen sensor connector (2) retainer to mount (3).
INSULATOR, ENGINE MOUNT, RIGHT

REMOVAL

REMOVAL

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Fig. 200: Windshield Washer Reservoir, Power Steering Reservoir &

Coolant Reservoir

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Courtesy of CHRYSLER GROUP, LLC
1. Remove coolant reservoir (3) and set aside.
2. Remove power steering reservoir (2) and set aside.
3. Remove windshield washer bottle (1).

Fig. 201: Power Steering Line Support

Courtesy of CHRYSLER GROUP, LLC
4. Remove power steering line support bracket (1) from engine mount.

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Fig. 202: Right Engine Mount Assembly

Courtesy of CHRYSLER GROUP, LLC

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5. Support transaxle with a block of wood and a suitable jack.
6. Remove engine mount through bolt (4).
7. Remove engine mount bracket bolts (3).
8. Remove engine mount retaining bolts.
9. Remove engine mount.
INSTALLATION

INSTALLATION

Fig. 203: Right Engine Mount Assembly

Courtesy of CHRYSLER GROUP, LLC

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1. Position right engine mount (1).

2. Install engine mount retaining bolts and tighten to 75 N.m (55 ft. lbs.).
3. Install engine mount adapter (2) and tighten bolts (3) to 68 N.m (50 ft. lbs.).
4. Install engine mount through bolt (4) and tighten to 88 N.m (65 ft. lbs.).

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Fig. 204: Power Steering Line Support
Courtesy of CHRYSLER GROUP, LLC
5. Remove jack.
6. Install power steering line support bracket (1) at engine mount.

Fig. 205: Windshield Washer Reservoir, Power Steering Reservoir &

Coolant Reservoir
Courtesy of CHRYSLER GROUP, LLC

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7. Install windshield washer bottle (1).

8. Install power steering reservoir (2).
9. Install coolant reservoir (3).
10. Install engine cover.
ENGINE BLOCK
DESCRIPTION

DESCRIPTION

The die cast aluminum cylinder block is a two-piece assembly, consisting of the
cylinder block and ladder frame. The block is an open deck design with cast in
place cast iron cylinder liners. The cast iron cylinder liners are recessed below

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the aluminum deck surface. The ladder frame bolts to the cylinder block and does
not incorporate the main bearing caps. This design offers a much stronger lower
end and increased cylinder block and transaxle rigidity. The rear oil seal retainer
is integral with the block and ladder frame. The ladder frame and block are
serviced as an assembly.

Fig. 206: Engine Serial Number

Courtesy of CHRYSLER GROUP, LLC
The engine serial number is located on the bottom of the ladder frame just behind
the oil pan. The date can be seen with the oil pan in place.
STANDARD PROCEDURE

STANDARD PROCEDURE - CYLINDER BORE HONING

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Fig. 207: Cylinder Bore Cross-Hatch Pattern
Courtesy of CHRYSLER GROUP, LLC

1 - CROSS-HATCH PATTERN
2 - 40°-60°

1. Deglazing of the cylinder walls may be done using a quality commercially

available flex hone, if the cylinder bore is straight and round. 20-60 strokes
depending on the bore condition, will be sufficient to provide a satisfactory
surface. Use a light honing oil. Do not use engine or transmission oil,
mineral spirits or kerosene. Inspect cylinder walls after each 20 strokes.
2. Honing should be done by moving the hone up and down fast enough to get
a cross-hatch pattern. When hone marks intersect at 30-50 degrees, the
cross hatch angle is most satisfactory for proper seating of rings.
3. A controlled hone motor speed between 200-300 RPM is necessary to obtain
the proper cross-hatch angle. The number of up and down strokes per
minute can be regulated to get the desired 30-50 degree angle. Faster up and
down strokes increase the cross-hatch angle.
4. After honing, it is necessary that the block be cleaned again to remove all
traces of abrasive.

CAUTION: Ensure all abrasives are removed from engine

parts after honing. It is recommended that a
solution of soap and hot water be used with a
brush and the parts then thoroughly dried. The

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bore can be considered clean when it can be wiped

clean with a white cloth and cloth remains clean.
Oil the bores after cleaning to prevent rusting.
INSPECTION

INSPECTION

ENGINE BLOCK

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Fig. 208: Checking Cylinder Bore Size
Courtesy of CHRYSLER GROUP, LLC
1. Clean cylinder block thoroughly and check all core hole plugs for evidence
of leaking.
2. Examine block and cylinder bores for cracks or fractures.
3. Check block deck surfaces for flatness. Deck surface must be within service
limit of 0.050 mm (0.002 in.).
CYLINDER BORE

NOTE: The cylinder bores should be measured at normal room

temperature, 21°C (70°F).

The cylinder walls should be checked for out-of-round and taper with Tool C119
or equivalent . Refer to SPECIFICATIONS . If the cylinder walls are badly
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scuffed or scored, the cylinder block should be replaced, and new pistons and
rings fitted.

Measure the cylinder bore at three levels in directions A and B . Top

measurement should be 10 mm (3/8 in.) down and bottom measurement should
be 10 mm (3/8 in.) up from bottom of bore. Refer to SPECIFICATIONS .
BEARING(S), CONNECTING ROD

STANDARD PROCEDURE

STANDARD PROCEDURE - CONNECTING ROD - FITTING

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Fig. 209: Bearing Selection
Courtesy of CHRYSLER GROUP, LLC
There are three different sizes of rod bearings available. Connecting rod bearing
identification (4) can be found on the nose of the crankshaft (3). Use the table
below for proper bearing selection.

CONNECTING ROD BEARING SELECTION

CONNECTING ROD CONNECTING ROD
CRANKSHAFT PIN
BEARING BEARING
DIAMETER GRADE
CLASSIFICATION THICKNESS
1 1 (Black) -3 Micron (-.003 mm.)
2 2 (No Color) Standard
3 3 (Green) +3 Micron (+.003 mm.)

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Fig. 210: Connecting Rod Bearing Clearance - Typical

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Courtesy of CHRYSLER GROUP, LLC
1. For measuring connecting rod bearing clearance procedure and use of
Plastigage. Refer to MEASURING BEARING CLEARANCE USING
PLASTIGAGE . For bearing clearance refer to Engine Specifications.
Refer to SPECIFICATIONS .

NOTE: The rod bolts should not be reused.

2. Before installing the NEW rod bolts the threads and under the bolt head
should be oiled with clean engine oil.
3. Install each bolt finger tight then alternately torque each bolt to assemble the
cap properly.
4. Tighten the connecting rod bolts using the 2 step torque-turn method.
Tighten according to the following values:

CAUTION: Do not use a torque wrench for the second

step.

1. Tighten the bolts to 20 N.m (15 ft. lbs.).

2. Tighten the connecting rod bolts an additional 90°.

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Fig. 211: Connecting Rod Side Clearance

Courtesy of CHRYSLER GROUP, LLC

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5. Using a feeler gauge, check connecting rod side clearance. Refer to
clearance specifications. Refer to SPECIFICATIONS .
BEARING(S), CRANKSHAFT, MAIN

STANDARD PROCEDURE

STANDARD PROCEDURE - MAIN BEARING SELECTION

NOTE: There are three different possibilities for the upper main
bearings and five different lower main bearings. The
upper and lower bearing shells are not interchangeable.

Fig. 212: Bearing Selection

Courtesy of CHRYSLER GROUP, LLC

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The lower main bearing identification (2) is stamped in the nose of the crankshaft
(3). There are 5 different bearing sizes available 0 through 4.

CRANKSHAFT LOWER CRANKSHAFT BEARING

IDENTIFICATION SELECTION
JOURNAL LOWER MAIN LOWER MAIN
DIAMETER DIMENSION BEARING SIZE BEARING
GRADE CLASSIFICATION DIMENSION
52 mm, -0.012 to 2 mm, 0 to -
0 0 (Pink or Red)
-0.015 mm 0.003 mm
52 mm, -0.015 to 2 mm, +0.003 to
1 1 (Black)
-0.018 mm 0 mm
52 mm, -0.018 to 2 mm, +0.006 to
2 2 (No Color)

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-0.021 mm +0.003 mm
52 mm, -0.021 to 2 mm, +0.009 to
3 3 (Green)
-0.024 mm +0.006 mm
52 mm, -0.024 to 2 mm, +0.012 to
4 4 (Blue)
-0.027 mm +0.009 mm

Fig. 213: Upper Main Bearing Shell Identification & Piston Identification
Courtesy of CHRYSLER GROUP, LLC
The upper main bearing shell identification (1) is located in the middle of
cylinder block on the right side of the engine. There are three different size
bearings available. The bearing class is read downward from top and corresponds

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to the front journal to the rear journal on the bottom.

UPPER MAIN BEARING SELECTION

CYLINDER BLOCK UPPER CRANKSHAFT BEARING
IDENTIFICATION SELECTION
MAIN UPPER MAIN UPPER MAIN
BEARING DIMENSION BEARING SIZE BEARING
GRADE CLASSIFICATION DIMENSION
56.000<56.006 2 mm, 0 to -0.006
1 1 (Black)
mm mm
56.006<56.012 2 mm, +0.006 to
2 2 (No Color)
mm 0 mm
56.012<56.018 2 mm, +0.012 to
3 3 (Green)

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mm +0.006 mm
CRANKSHAFT

STANDARD PROCEDURE

STANDARD PROCEDURE - MEASURING CRANKSHAFT END PLAY

Fig. 214: Checking Crankshaft End Play - Typical

Courtesy of CHRYSLER GROUP, LLC

1 - Crankshaft
2 - DIAL INDICATOR

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1. Mount a dial indicator (2) to front of engine with the locating probe on nose
of crankshaft (1).
2. Move crankshaft all the way to the rear of its travel.
3. Zero the dial indicator.
4. Move crankshaft all the way to the front and read the dial indicator. For end
play specification, refer to SPECIFICATIONS .
REMOVAL

REMOVAL

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Fig. 215: Flex Plate
Courtesy of CHRYSLER GROUP, LLC

NOTE: Crankshaft can not be removed when engine is in vehicle.

1. Remove engine assembly from vehicle. Refer to REMOVAL.

2. Separate transaxle from engine.
3. Remove flex plate/flywheel (1).
4. Remove crankshaft rear oil seal. Refer to SEAL, CRANKSHAFT OIL,
REAR, REMOVAL.

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Fig. 216: Identifying Lift Chain

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Courtesy of CHRYSLER GROUP, LLC
5. Remove engine from lift chain (1) and mount engine on a suitable repair
stand.

Fig. 217: Oil Drain Plug

Courtesy of CHRYSLER GROUP, LLC
6. Drain engine oil (2).

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Fig. 218: Oil Filter

Courtesy of CHRYSLER GROUP, LLC

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7. Remove oil filter (1).

Fig. 219: Right Side Engine Mount Bracket, Crankshaft Damper &
Water Pump Pulley
Courtesy of CHRYSLER GROUP, LLC
8. Remove crankshaft vibration damper (2). Refer to DAMPER,
VIBRATION, REMOVAL.
9. Remove water pump pulley (3).
10. Remove engine mount support bracket (1).

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Fig. 220: Oil Pan Removal

Courtesy of CHRYSLER GROUP, LLC

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11. Remove the oil pan (2). Refer to PAN, OIL, REMOVAL.
12. Remove timing chain cover. Refer to COVER(S), ENGINE TIMING,
REMOVAL.
13. Remove the timing chain. Refer to CHAIN AND SPROCKETS, TIMING,
REMOVAL.
14. Remove balance shaft module.

Fig. 221: Crankshaft Sprocket

Courtesy of CHRYSLER GROUP, LLC
15. Remove the crankshaft sprocket (1).

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Fig. 222: Crankshaft Position Sensor

Courtesy of CHRYSLER GROUP, LLC

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16. Remove crankshaft position sensor retaining bolt (1) and remove sensor (2).
17. Remove ladder frame. Refer to FRAME, LADDER, REMOVAL.

Fig. 223: Identifying Mark On Connecting Rod And Bearing Cap

Courtesy of CHRYSLER GROUP, LLC

NOTE: If piston/connecting rod replacement is necessary,

remove cylinder head. Refer to CYLINDER HEAD,
REMOVAL.

CAUTION: DO NOT use a number stamp or a punch to

mark connecting rods. Damage to connecting
rod could occur.

18. Using a permanent ink or paint marker, identify cylinder number on each
connecting rod and cap.

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19. Remove all connecting rod bolts and caps. Care should be taken not to
damage the fracture rod and cap surfaces.

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Fig. 224: Main Bearing Cap Torque Sequence
Courtesy of CHRYSLER GROUP, LLC

NOTE: Do not reuse connecting rod bolts.

20. Remove main bearing caps.

CAUTION: Use extreme care when handling crankshaft.

Tone wheel damage can occur if crankshaft is
mis-handled.

21. Lift out crankshaft from cylinder block. Do not damage the main bearings or
journals when removing the crankshaft.
INSPECTION

INSPECTION

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Fig. 225: Crankshaft Journal Measurements - Typical

Courtesy of CHRYSLER GROUP, LLC

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The crankshaft main journals should be checked for excessive wear, taper and
scoring. Limits of taper on any crankshaft main journals should be held to 0.006
mm (0.00024 in.). Limits of taper on any crankshaft rod journals should be held
to 0.005 mm (0.0002 in.). DO NOT nick crank pin or bearing fillets. Limits of
out of round on any crankshaft journals should be held to 0.005 mm (0.0002 in).
DO NOT nick crank pin or bearing fillets.
INSTALLATION

INSTALLATION

Fig. 226: Bearing Identification

Courtesy of CHRYSLER GROUP, LLC
The crankshaft is supported in five main bearings. All upper bearing shells (2) in

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the crankcase have oil grooves and holes. All lower bearing shells (1) are
smooth. Crankshaft end play is controlled by a two piece thrust bearing (3) on
the number three main bearing journal.

1. Clean main bearing cap bolt holes with Mopar® brake parts cleaner or
equivalent and blow out with compressed air.
2. Install the main bearing upper (2) shells with the lubrication groove and oil
hole in the engine block.
3. Make certain oil holes in block line up with oil hole in bearings and bearing
tabs seat in the block tab slots.

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Fig. 227: Target Wheel
Courtesy of CHRYSLER GROUP, LLC

NOTE: If the crankshaft is sent out for machine work, it must

be balanced as an assembly with the target ring
installed.

4. Clean crankshaft and target ring with Mopar® brake parts cleaner or
equivalent and dry with compressed air to ensure that the crankshaft mating
surface and target ring mounting holes are free from oil and lock patch
debris.

NOTE: Always use NEW mounting screws whether installing

original or new target ring.

5. Install NEW mounting screws finger tight starting with the #1 location.

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Make sure engagement occurs with the shoulder of the screws and mounting
hole before starting all other screws.
6. Tighten all mounting screws to 13 N.m (110 in. lbs.) in the sequence shown
in illustration.

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Fig. 228: Installing Thrust Bearing
Courtesy of CHRYSLER GROUP, LLC

NOTE: Lightly apply trans gel to thrust bearings to hold

bearings in block.

NOTE: The thrust bearings must be installed with the

notches facing the crankshaft.

7. Install thrust bearings (2) in block (1).

CAUTION: Do not get oil on the ladder frame mating

surface. It will affect the ability of the RTV to
seal the ladder frame to cylinder block.

NOTE: Ensure main bearing cap bolt holes in the block are
clean, dry (free of residual oil or coolant), and threads
are not damaged.

8. Oil the bearings and journals. Install crankshaft in engine block.

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Fig. 229: Bearing Identification

Courtesy of CHRYSLER GROUP, LLC

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9. Install lower main bearings (1) into main bearing cap. Make certain the
bearing tabs are seated into the bearing cap slots.

NOTE: Main bearing caps are stamped 1 - 5 front to rear.

Arrows on the caps must point towards the front of
the engine.

10. Install main bearing caps to engine block.

11. Before installing the bolts the threads should be clean and dry.
12. Loosely install main bearing cap bolts.
13. To ensure correct thrust bearing alignment, perform the following steps:
Step 1: Rotate crankshaft until number 4 piston is at TDC.
Step 2: Move crankshaft rearward to limits of travel.
Step 3: Then, move crankshaft forward to limits of travel.
Step 4: Wedge an appropriate tool between the rear of the cylinder
block and the rear crankshaft counterweight. This will hold the
crankshaft in its furthest forward position.

CAUTION: There are different sets main bolts supplied

with this engine. Each bolt set has a different
torque value and engine damage could result if
bolts are not torqued correctly. The bolts are

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not interchangeable.

Fig. 230: Main Bolt Identification

Courtesy of CHRYSLER GROUP, LLC

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14. If your bolt heads are marked with b (1) or 6 (2), go to step 15. If your bolt
heads are marked with M (3) or any other marking, go to step 16.

Fig. 231: Main Bearing Cap Torque Sequence

Courtesy of CHRYSLER GROUP, LLC

CAUTION: Before tightening bolts, you must identify the

bolt head to obtain the correct torque value.
Failure to identify the bolts correctly, could
result in improperly tightened bolts which
could result in engine damage.

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15. Tighten bolts marked with b or 6 using the following three step method, in
the sequence shown in illustration:
Tighten all bolts to 15 N.m (11 ft. lbs.)
Tighten all bolts to 27 N.m (20 ft. lbs.)
Tighten all bolts an additional 45°.
16. Tighten bolts marked with M using the following three step method, in the
sequence shown in illustration:
Tighten all bolts to 15 N.m (11 ft. lbs.)
Tighten all bolts to 45 N.m (33 ft. lbs.)
Tighten all bolts an additional 45°.
17. Remove wedge tool used to hold crankshaft.

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18. Check the crankshaft turning torque, it should not exceed 5.6 N.m (50 in.
lbs.).
19. Check crankshaft end play. Refer to CRANKSHAFT - STANDARD
PROCEDURE .
20. Install connecting rod bearings and caps. Do Not Reuse Connecting Rod
Bolts. Tighten connecting rod bolts to 20 N.m + 90° (15 ft. lbs.) + 90°.
Refer to ROD, PISTON AND CONNECTING, INSTALLATION.
21. Install the ladder frame assembly. Refer to FRAME, LADDER,
INSTALLATION.
22. Install the balance shaft module. Refer to PUMP, ENGINE OIL,
INSTALLATION.

Fig. 232: Crankshaft Position Sensor

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Courtesy of CHRYSLER GROUP, LLC

23. Install crankshaft position sensor (2) and tighten bolt (1).
24. Install cylinder head if it was removed. Refer to CYLINDER HEAD,
INSTALLATION.

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Fig. 233: Crankshaft Sprocket
Courtesy of CHRYSLER GROUP, LLC
25. Install front crankshaft sprocket (1).
26. Install the timing chain. Refer to CHAIN AND SPROCKETS, TIMING,
INSTALLATION.
27. Install the timing chain front cover. Refer to COVER(S), ENGINE
TIMING, INSTALLATION.
28. Install the oil pan. Refer to PAN, OIL, INSTALLATION.
29. Install rear crankshaft oil seal. Refer to SEAL, CRANKSHAFT OIL,
REAR, INSTALLATION.
30. Install front crankshaft oil seal. Refer to SEAL, CRANKSHAFT OIL,
FRONT, INSTALLATION.

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Fig. 234: Right Side Engine Mount Bracket, Crankshaft Damper &
Water Pump Pulley

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Courtesy of CHRYSLER GROUP, LLC
31. Install engine mount support bracket (1).
32. Install crankshaft vibration damper (2). Refer to DAMPER, VIBRATION,
INSTALLATION.
33. Install water pump pulley (3).

Fig. 235: Lift Chain

Courtesy of CHRYSLER GROUP, LLC
34. Install engine lift chain (1) and remove engine from repair stand.
35. Install crankshaft rear oil seal. Refer to SEAL, CRANKSHAFT OIL,

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REAR, INSTALLATION.
36. Install drive plate/flex plate using new bolts. Tighten bolts to 95 N.m (70 ft.
lbs.).
37. Attach transaxle to engine. Tighten bellhousing bolts to 101 N.m (75 ft.
lbs.).
38. Install the engine assembly into the vehicle. Refer to INSTALLATION.

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Fig. 236: Oil Filter
Courtesy of CHRYSLER GROUP, LLC
39. Install new oil filter (1) and fill with oil.
40. Fill with coolant. Refer to STANDARD PROCEDURE .
41. Start engine and check for leaks.
42. Install engine cover.
DAMPER, VIBRATION

REMOVAL

REMOVAL

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Fig. 237: Damper Removal & Installation

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Courtesy of CHRYSLER GROUP, LLC
1. Remove accessory drive belts. Refer to BELT, SERPENTINE,
REMOVAL .
2. Install Damper holder (special tool #9707, Holder, Vibration Damper) (1).
3. Remove crankshaft damper bolt.
4. Pull damper off crankshaft.
INSTALLATION

INSTALLATION

Fig. 238: Damper Removal & Installation

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Courtesy of CHRYSLER GROUP, LLC

1. Install crankshaft damper.
2. Apply clean engine oil crankshaft damper bolt threads and between bolt
head and washer. Tighten bolt to 210 N.m (155 ft. lbs.).
3. Install accessory drive belts. Refer to BELT, SERPENTINE,
INSTALLATION .
FLEXPLATE

REMOVAL

REMOVAL

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Fig. 239: Flex Plate
Courtesy of CHRYSLER GROUP, LLC
1. Remove transmission Refer to BG6, REMOVAL , T355, REMOVAL or
CVT, REMOVAL .
2. Remove flex plate bolts (3) and discard.
3. Remove washer (2).
4. Remove flex plate (1).
INSTALLATION

INSTALLATION

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Fig. 240: Flex Plate

Courtesy of CHRYSLER GROUP, LLC

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1. Install flex plate (1).
2. Install washer (2).
3. Install new flex plate bolts (3) and tighten in a criss-cross pattern to 29 N.m
(22 ft. lbs.) plus 51° rotation.
4. Install transaxle. Refer to BG6, INSTALLATION , T355,
INSTALLATION or CVT, INSTALLATION .
FRAME, LADDER

REMOVAL

REMOVAL

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Fig. 241: Pry Point 1

Courtesy of CHRYSLER GROUP, LLC
1. Remove oil pan. Refer to PAN, OIL, REMOVAL.
2. Remove balance shaft assembly. Refer to PUMP, ENGINE OIL,
REMOVAL.
3. Remove ladder frame retaining bolts.
4. Remove ladder frame using pry point cast in the rear of the block (1).

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Fig. 242: Pry Point 2
Courtesy of CHRYSLER GROUP, LLC
5. To assist in removing the ladder frame another (1) pry point cast in the right
side of the block.
CLEANING

CLEANING

Clean ladder frame with a plastic or wooden scraper and a suitable solvent. Refer
to ENGINE GASKET SURFACE PREPARATION .
INSTALLATION

INSTALLATION

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Fig. 243: Sealing Ladder Frame

Courtesy of CHRYSLER GROUP, LLC

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NOTE: When using RTV, the sealing surfaces must be clean and
free from grease and oil.

NOTE: When using RTV, parts should be assembled in 10

minutes and tighten to final torque within 45 minutes.

1. Apply a 2 mm bead of Mopar® engine sealant RTV or equivalent as shown

in illustration.

Fig. 244: Ladder Frame Bolts Tightening Sequence

Courtesy of CHRYSLER GROUP, LLC

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2. Install bolts and tighten as shown in illustration following a two step

method.
First: All to 10 N.m (89 in. lbs.).
Second: All to 26 N.m (19 ft. lbs.).
3. Install balance shaft module. Refer to PUMP, ENGINE OIL,
INSTALLATION.
4. Install oil pan. Refer to PAN, OIL, INSTALLATION.
RING(S), PISTON

STANDARD PROCEDURE

STANDARD PROCEDURE - PISTON RING - FITTING

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Fig. 245: Check Gap On Piston Rings
Courtesy of CHRYSLER GROUP, LLC
1. Wipe cylinder bore clean. Insert ring and push down with piston to ensure it
is square in bore. The ring gap measurement must be made with the ring
positioning at least 13 mm (0.50 inch) from bottom of cylinder bore and
below the bottom of the oil ring travel where cylinder bore has minimal
wear. Check gap with feeler gauge. Refer to Engine SPECIFICATIONS s.

NOTE: Ring end gap measurements are sensitive to the ring

being square in the bore. Care must be used to avoid
tilting the rings in cylinder bores when taking
measurements.

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Fig. 246: Piston Ring To Groove Side Clearance

Courtesy of CHRYSLER GROUP, LLC

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2. Check piston ring to groove side clearance. Refer to Engine
SPECIFICATIONS .

CAUTION: Exercise care when using tools on piston. Do not

scratch or gouge piston surface or ring grooves as
this may cause engine damage.
REMOVAL

REMOVAL

Fig. 247: Piston Rings-Removing And Installing

Courtesy of CHRYSLER GROUP, LLC
1. Using a suitable ring expander, remove upper and intermediate piston rings.
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2. Remove the upper oil ring side rail, lower oil ring side rail and then oil ring
expander from piston.
3. Clean ring grooves of any carbon deposits.
INSTALLATION

INSTALLATION

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Fig. 248: Installing Side Rail
Courtesy of CHRYSLER GROUP, LLC

NOTE: The identification mark on face of upper and intermediate

piston rings must point toward top of piston.

CAUTION: Install piston rings in the following order:

Oil ring expander.

Upper oil ring side rail.
Lower oil ring side rail.
No. 2 Intermediate piston ring.
No. 1 Upper piston ring.

1. Install oil ring expander.

2. Install upper side rail first and then the lower side rail. Install the side rails
by placing one end between the piston ring groove and the oil ring expander.
Hold end firmly and press down the portion to be installed until side rail is
in position. Do not use a piston ring expander.

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NOTE: The compression rings are marked Y1 for the upper

compression ring and Y2 for the second compression
ring. These markings must face upward.

3. Install No. 2 piston ring and then No. 1 piston ring.

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Fig. 249: Identifying Piston Ring End Gap Positions
Courtesy of CHRYSLER GROUP, LLC
4. Position piston ring end gaps as shown in illustration.
5. Position oil ring expander gap at least 45° from the side rail gaps but not on
the piston pin center or on the thrust direction. Staggering ring gap is
important for oil control.
ROD, PISTON AND CONNECTING

DESCRIPTION

DESCRIPTION

The pistons are made of a cast aluminum alloy. The pistons have pressed-in pins
attached to forged connecting rods. The piston pin is offset 0.8 mm (0.0314 in.)
towards the thrust side of the piston. The connecting rods are a cracked cap
design and are not repairable. The piston with rings, connecting rod and piston
pin are serviced as an assembly.
STANDARD PROCEDURE

PISTON AND BORE MEASUREMENT

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Fig. 250: Piston Pin Measurements

Courtesy of CHRYSLER GROUP, LLC

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NOTE: Pistons and cylinder bores should be measured at
normal room temperature, 21°C (70°F).

Piston and cylinder wall must be clean and dry. Piston diameter should be
measured 90 degrees to piston pin (1).

1. Measurement should be taken approximately 17 mm (0.669 in.) from the

bottom of the skirt (2) as shown in illustration.

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Fig. 251: Checking Cylinder Bore Size

Courtesy of CHRYSLER GROUP, LLC

NOTE: Correct piston to bore clearance must be established

in order to assure quiet and economical operation.

2. Cylinder bores should be measured halfway down the cylinder bore and
transverse (measurement location B) to the engine crankshaft center line
shown in illustration. Refer to SPECIFICATIONS .
PISTON SELECTION

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Fig. 252: Upper Main Bearing Shell Identification & Piston Identification
Courtesy of CHRYSLER GROUP, LLC
The pistons are select fit to each bore. There are three different grades of pistons
available; A, B, and C. The piston identification (2) is located in the middle of
the block on the right side of the engine. The bore identification starts at the top
and reads downward. Bore #1 is at the top and bore #4 is at the bottom.

The piston, rings and rod are serviced as an assembly, after determining what
size piston is needed, to determine correct rod bearing size. Refer to BEARING
(S), CONNECTING ROD - STANDARD PROCEDURE .
REMOVAL

REMOVAL

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Fig. 253: Lift Chain

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Courtesy of CHRYSLER GROUP, LLC

NOTE: Pistons, rings, and rods are serviced as an assembly.

CAUTION: To maintain engine balance, 1, 3, or 4 pistons can

be replaced. If 2 pistons are replaced, engine will
be out of balance.

1. Remove engine. Refer to REMOVAL.

2. Remove engine from lift chain (1) and place on a suitable engine stand.
3. Remove cylinder head. Refer to CYLINDER HEAD, REMOVAL.

Fig. 254: Oil Drain Plug

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Courtesy of CHRYSLER GROUP, LLC

4. Drain engine oil (2).
5. Remove oil pan (1). Refer to PAN, OIL, REMOVAL.

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Fig. 255: Oil Filter
Courtesy of CHRYSLER GROUP, LLC
6. Remove oil filter (1).
7. Remove balance shaft assembly.
8. Remove ladder frame.

NOTE: Remove any carbon build up and clean debris from

cylinder prior to piston removal to avoid scratching
piston skirts.

9. Remove top ridge of cylinder bores with a reliable ridge reamer before
removing pistons from cylinder block. Be sure to keep tops of pistons
covered during this operation .

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Fig. 256: Identifying Mark On Connecting Rod And Bearing Cap

Courtesy of CHRYSLER GROUP, LLC
10. Rotate crankshaft so that each connecting rod is centered in cylinder bore.
11. Using a permanent ink or paint marker, identify cylinder number on each
connecting rod cap.

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CAUTION: DO NOT use a number stamp or a punch to
mark connecting rods, as damage to
connecting rod could occur.

CAUTION: Care must be taken not to damage the

fractured rod and cap joint surfaces, as engine
damage may occur.

12. Remove connecting rod bolts and cap.

CAUTION: Do not reuse connecting rod bolts. These are

one-time-use bolts and reuse could result in
engine failure.

13. Carefully push each piston and rod assembly out of cylinder bore. Re-install
bearing cap on the mating rod.
14. Repeat procedure for each piston and connecting rod assembly.
INSTALLATION

INSTALLATION

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Fig. 257: Identifying Piston Ring End Gap Positions

Courtesy of CHRYSLER GROUP, LLC

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1. Install piston rings on piston. Refer to RING(S), PISTON,
INSTALLATION.
2. Before installing pistons and connecting rod assemblies into the bore, be
sure that top compression ring gap (1) and the second compression ring gap
(3) are staggered so that neither is in line with oil ring rail gap.
3. Before installing the ring compressor, make sure the oil ring expander ends
are butted (1) and the rail gaps (2, 4) located as shown in illustration above.
As viewed from the top of the piston.
4. Immerse the piston head and rings in clean engine oil, slide the ring
compressor, over the piston. Be sure position of rings does not change
during this operation .

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Fig. 258: Piston Installation

Courtesy of CHRYSLER GROUP, LLC
5. The directional arrow stamped on the piston should face toward the front of
the engine.
6. Rotate crankshaft so that the connecting rod journal is on the center of the
cylinder bore. Lubricate connecting rod journal with clean engine oil.

NOTE: There are three different size rod bearings, perform

STANDARD PROCEDURE - CONNECTING ROD -
FITTING n procedure.

NOTE: The rod bearing sizes are indicated on the nose of the

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crankshaft.

Fig. 259: Piston, Hammer Handle & Ring Compressor

Courtesy of CHRYSLER GROUP, LLC
7. Install connecting rod upper bearing half into connecting rod.
8. Install ring compressor (3).
9. Tap the piston (1) down in cylinder bore, using a hammer handle (2). At the
same time, guide connecting rod into position on connecting rod journal.

NOTE: The connecting rod cap bolts should NOT be reused.

10. Before installing the NEW bolts, the threads should be coated with clean
engine oil.
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11. Install connecting rod lower bearing half into connecting rod cap. Install
connecting rod cap.
12. Install each bolt finger tight then alternately torque each bolt to assemble the
cap properly.
13. Tighten the connecting rod bolts using the 2 step torque-turn method.
Tighten according to the following values:

CAUTION: Do not use a torque wrench for the second

step.

1. Tighten the bolts to 20 N.m (15 ft. lbs.).

2. Tighten the connecting rod bolts an additional 90°.

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Fig. 260: Connecting Rod Side Clearance
Courtesy of CHRYSLER GROUP, LLC
14. Using a feeler gauge, check connecting rod side clearance. for connecting
rod side clearance. Refer to SPECIFICATIONS .
15. Install the ladder frame. Refer to FRAME, LADDER, INSTALLATION.
16. Install oil pump/balance shaft carrier assembly. Refer to PUMP, ENGINE
OIL, INSTALLATION.
17. Install oil pan. Refer to PAN, OIL, INSTALLATION.
18. Install cylinder head. Refer to CYLINDER HEAD, INSTALLATION.

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Fig. 261: Lift Chain

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Courtesy of CHRYSLER GROUP, LLC
19. Install engine on lift chain (1).
20. Install engine. Refer to INSTALLATION.
SEAL, CRANKSHAFT OIL, FRONT

REMOVAL

REMOVAL

Fig. 262: Damper Removal & Installation

Courtesy of CHRYSLER GROUP, LLC

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1. Remove accessory drive belt.

2. Install damper holder (special tool #9707, Holder, Vibration Damper) (1)
and remove damper retaining bolt.
3. Pull damper off crankshaft.

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Fig. 263: Front Crankshaft Seal Removal
Courtesy of CHRYSLER GROUP, LLC
4. Remove front crankshaft oil seal (1) by prying out with a screw driver (2).
Be careful not to damage the cover seal surface.
INSTALLATION

INSTALLATION

Fig. 264: Crankshaft Oil Seal & Seal Installer 9506

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Courtesy of CHRYSLER GROUP, LLC

1. Place seal (1) onto Seal installer (special tool #9506, Installer, Oil Seal) (2)
with seal spring towards the inside of engine.

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Fig. 265: Installing Front Seal
Courtesy of CHRYSLER GROUP, LLC
2. Install new seal (1) by using Seal installer (special tool #9506, Installer, Oil
Seal) (2) and crankshaft damper bolt (3).

Fig. 266: Front Seal Installed

Courtesy of CHRYSLER GROUP, LLC
3. Press seal into front cover until Seal Installer (special tool #9506, Installer,
Oil Seal) (1) seats against timing chain cover (3).

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4. Remove seal installer (special tool #9506, Installer, Oil Seal) (1).

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Fig. 267: Damper Removal & Installation
Courtesy of CHRYSLER GROUP, LLC
5. Install crankshaft vibration damper.
6. Oil the bolt threads and between the bolt head and washer.
7. Install damper retaining bolt and damper holder (special tool #9707, Holder,
Vibration Damper) (1). Tighten bolt to 210 N.m (155 ft. lbs.).
SEAL, CRANKSHAFT OIL, REAR

REMOVAL

REMOVAL

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Fig. 268: Flex Plate

Courtesy of CHRYSLER GROUP, LLC
1. Remove transmission and flexplate (1). Refer to FLEXPLATE,
REMOVAL.

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Fig. 269: Rear Crankshaft Oil Seal - Removal
Courtesy of CHRYSLER GROUP, LLC
2. Insert a 3/16 flat bladed screwdriver (7) between the dust lip (8) and the
metal case (4) of the crankshaft seal (1). Angle the screwdriver through the
dust lip against metal case of the seal. Pry out seal.

CAUTION: Do not permit the screwdriver blade to contact

crankshaft seal surface. Contact of the
screwdriver blade against crankshaft edge
(chamfer) is permitted.

3. Check to make sure the seals garter spring is not on the crankshaft.
INSTALLATION

INSTALLATION

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Fig. 270: Driving Seal Into Block Using Seal Driver 9706 And Driver Handle

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C-4171 Until Seal Driver 9706 Bottoms Out Against Block
Courtesy of CHRYSLER GROUP, LLC

CAUTION: If a burr or scratch is present on the crankshaft

edge (chamfer), cleanup with 800 emery cloth to
prevent seal damage during installation of new
seal. If emery cloth is used, the crankshaft must be
cleaned off Mopar® brake parts cleaner.

NOTE: When installing seal, lubricate Seal Guide (special tool

#9509, Installer, Oil Seal) with clean engine oil.

1. Place Seal Guide (special tool #9509, Installer, Oil Seal) (3) on crankshaft.
2. Position seal (2) over guide tool. Guide tool should remain on crankshaft
during installation of seal. Ensure that the lip of the seal is facing towards
the crankcase during installation.
3. Drive the seal into the block using Seal Driver (special tool #9706, Installer,
Crankshaft Rear Oil Seal) (1) and Driver Handle (special tool #C-4171,
Driver Handle, Universal) (4) until Seal Driver (special tool #9706, Installer,
Crankshaft Rear Oil Seal) bottoms out against the block.

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Fig. 271: Flex Plate

Courtesy of CHRYSLER GROUP, LLC

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4. Install the flexplate (1) and transmission. Refer to FLEXPLATE,
INSTALLATION.
LUBRICATION
DESCRIPTION

DESCRIPTION

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Fig. 272: Oil Flow Diagram
Courtesy of CHRYSLER GROUP, LLC
The lubrication system is a full-flow filtration, pressure feed type. The Balance
Shaft Module (BSM) is mounted below the ladder frame and chain driven by the
crankshaft. The BSM consists of a non-serviceable pump, oil pressure relief
valve, and a non-serviceable balance assembly.

Fig. 273: Oil Hole

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Courtesy of CHRYSLER GROUP, LLC

NOTE: Not all blocks have the bolt on timing chain oil squirter.
Engine blocks either have a bolt-on oil squirter or a 1.0
mm hole (1) drilled into the oil gallery passage. Engine
blocks with the 1.0 mm hole no longer use an oil squirter
even though the threaded mounting hole may still be
present.
OPERATION

OPERATION

Engine oil is drawn up through the pickup tube and is pressurized by the oil
pump and routed through the full-flow filter to the main oil gallery running the

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length of the cylinder block. A diagonal hole in each bulkhead feeds oil to each
main bearing. Drilled passages within the crankshaft route oil from main bearing
journals to connecting rod journals. Balance shaft lubrication is provided through
an internal oil passage at the #3 bearing location around the BSM mounting bolt.
A vertical hole at the number one bulkhead routes pressurized oil through a filter
screen and head gasket up to the cylinder head. The oil then divides into three
passages; one to the intake cam phaser, one to the exhaust cam phaser and one to
the camshafts. The passage to the camshafts divides to feed both of the hollow
camshafts at the second cam journal. The rest of cam journals are feed oil
through the hollow camshafts. The #1 cam journals are fed oil through the VVT
oil passages. Oil passages to the phasers are directed through the OCV (oil
control valves) to the #1 journals. The oil then flows through the camshafts then
to the cam phasers. Oil returning to the pan from pressurized components
supplies lubrication to the valve stems, cam lobes, and tappets. Cylinder bores
and wrist pins are splash lubricated from directed slots on the connecting rod
thrust collars.
DIAGNOSIS AND TESTING

CHECKING ENGINE OIL PRESSURE

NOTE: Due to restricted access to the oil pressure switch, it is

recommended to first check VVT oil pressure at the oil
temperature sensor. Refer to CHECKING VVT OIL
PRESSURE .

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Fig. 274: Oil Sender

Courtesy of CHRYSLER GROUP, LLC

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1. Remove the oil pressure switch (1). Refer to SWITCH, OIL PRESSURE,
REMOVAL.

Fig. 275: Oil Pressure Gauge

Courtesy of CHRYSLER GROUP, LLC

CAUTION: Threads in block are 1/8"-28 British Standard

Pipe (BSP). Do not install a National Pipe
Thread (NPT) threaded adapter, this could
crack the cylinder block.

2. Install an 1/8-28 BSP male to 1/8-27 female threaded adapter (2).

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3. Install an oil pressure gauge (1).

4. Start engine and record oil pressure.

CAUTION: If oil pressure is 0 at idle, do not perform the

3000 RPM test

5. If oil pressure is 0 at idle, shut off engine. No oil pressure or low oil pressure
at the oil pressure switch can be due to the following:
Pressure relief valve stuck open.
Clogged oil pump pick-up screen.
6. Remove the oil pan and inspect for debris. Refer to PAN, OIL,
REMOVAL.

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7. Remove the oil pressure relief valve. Refer to VALVE, OIL PRESSURE
RELIEF, REMOVAL.
8. Inspect the oil pressure relief valve. Refer to VALVE, OIL PRESSURE
RELIEF - INSPECTION .
9. If pressure relief valve is OK, replace the balance shaft module assembly.
Refer to PUMP, ENGINE OIL, REMOVAL.

Fig. 276: Oil Pressure Gauge

Courtesy of CHRYSLER GROUP, LLC
10. After test is complete, remove test gauge (1) and fitting (2).

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Fig. 277: Oil Sender

Courtesy of CHRYSLER GROUP, LLC

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CAUTION: The oil pressure switch has tapered threads,
over tightening could crack the engine block.

NOTE: If the oil pressure switch is removed, it must be

replaced with a new switch.

11. Install the oil pressure switch and electrical connector. Refer to SWITCH,
OIL PRESSURE, INSTALLATION.
CHECKING VVT OIL PRESSURE

NOTE: This test can be used to help diagnose VVT faults. Due to
restricted access to the oil pressure switch, it is
recommended to first perform this procedure to check
VVT oil pressure at the oil temperature sensor.

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Fig. 278: Oil Temperature Sensor

Courtesy of CHRYSLER GROUP, LLC

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NOTE: Anytime the oil temperature sensor is removed, it should
be replaced with a new sensor.

1. Disconnect and remove the oil temperature sensor (1). Refer to SENSOR,
OIL TEMPERATURE, REMOVAL.

Fig. 279: Oil Pressure Adapter 9879

Courtesy of CHRYSLER GROUP, LLC

CAUTION: Threads in cylinder head are British Standard

Pipe (BSP). Do not install a NPT threaded
adapter, this could crack the cylinder head.

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2. Install threaded adapter (special tool #9879, Adapter, Oil Pressure Test) (1).
3. Install an oil pressure gauge (2).

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Fig. 280: Oil PSI Gauge
Courtesy of CHRYSLER GROUP, LLC
4. Start engine and record reading on oil pressure gauge (1).

CAUTION: If oil pressure is 0 at idle, do not perform the

3000 RPM test

5. If oil pressure is 0 at idle, shut off engine. No oil pressure or low oil pressure
at the oil temperature sensor can be due to the following:
Clogged variable valve timing filter screen
Pressure relief valve stuck open
Clogged oil pump pick-up screen

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Fig. 281: VVT Filter

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Courtesy of CHRYSLER GROUP, LLC
6. To determine if the variable valve timing filter screen is clogged, check
engine oil pressure at the oil pressure switch. Refer to CHECKING
ENGINE OIL PRESSURE .
7. If oil pressure is acceptable at the oil pressure switch, but low at the oil
temperature sensor, remove the cylinder head (1) and inspect the variable
valve timing filter screen (3). Refer to CYLINDER HEAD, REMOVAL.

Fig. 282: Oil Pressure Adapter 9879

Courtesy of CHRYSLER GROUP, LLC
8. After test is complete, remove oil pressure gauge (2) and adapter (special

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tool #9879, Adapter, Oil Pressure Test) (1).

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Fig. 283: Oil Temperature Sensor
Courtesy of CHRYSLER GROUP, LLC
9. Install a new oil temperature sensor (1) and connect the electrical connector.
Refer to SENSOR, OIL TEMPERATURE, INSTALLATION.
CONTROL VALVE, OIL INTAKE

DESCRIPTION

DESCRIPTION

Fig. 284: Solenoid Assembly

Courtesy of CHRYSLER GROUP, LLC

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Variable valve timing solenoid assembly. The solenoid receives pulse width
modulation signal and the current is controlled within 0 ma to 1000 ma. The
spool position is controllable at any position to control supply of oil between the
advance and retard ports.
OPERATION

OPERATION

There is both an Intake and an exhaust camshaft sensor on vehicles equipped

with a World Engine. The variable valve timing system used on World Engines
requires the exact position of both the intake and exhaust camshaft. The GPEC1
uses camshaft sensor data along with crankshaft data to determine the actual
position of the camshafts. Intake and exhaust phaser oil control valves are
required on World Engine vehicles using variable valve timing. The oil valves

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direct oil to the Intake and exhaust phasers. Oil pressure in the phasers moves the
camshafts to an advanced or retarded position.

To resolve this inherent conflict between optimum high and low speed valve
timing, the GPEC1 controlled engine uses a variable valve timing system. The
variable valve timing system advances and retards valve timing by rotating the
position of both the intake and exhaust camshafts. With this system, the intake
valve opening can range from 80 to 120 crankshaft degrees after Top Dead
Center. Likewise, the exhaust valve opening can range from 85 to 120 crankshaft
degrees before Top Dead Center. This degree of flexibility provides many
benefits, including: Improved Engine Performance, Increased Fuel Economy,
Improved Idle Stability and Decreased Engine Emissions. In non operating
condition, the camshaft stays in lockpin position of cam phases. This is 120
degrees ATDC for intake camshaft and 120 degrees BTDC for exhaust camshaft.

The variable valve timing system is electronically controlled and hydraulically

operated. The GPEC1 receives information from many sensors to determine the
optimum valve timing. It then pulse-width modulates oil control valves which
direct oil to the cam phasers. The cam phasers use oil pressure to rotate the intake
and exhaust camshafts. The rotation of the camshafts is referred to as cam
phasing. Before the GPEC1 can begin commanding the camshaft phasing,
several enabling conditions must be met:

The engine oil temperature must be at least -6.6°C (20°F)

The oil control valve coil temperature must be less than 140°C (284°F)

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Engine speed must be at least 600 to 1000 RPM to achieve minimum oil
pressure.
Battery voltage must be at least 10 volts
And there must be no camshaft or crankshaft sensor faults, engine timing
faults, or oil control valve faults

First we will examine variable valve timing enabling conditions, and then we
will take a closer look at the inputs and outputs of the system:

Accelerator pedal position sensor

Oil temperature sensor
Map sensor
Intake cam sensor

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Exhaust cam sensor
Crankshaft sensor
GPEC1
Exhaust phaser oil control valve
Intake phaser oil control valve
Inputs
Engine control module
Outputs
Sensed battery voltage

A minimum oil temperature is required to enable variable valve timing operation.

Oil temperature and viscosity also have an impact on the operation of variable
valve timing after start-up. Oil is used to control the movement of the camshafts.
An incorrect oil viscosity could adversely affect the operation of the system or
even render the system inoperative. It may even set a fault code.

The accelerator pedal position sensor indicates how far the driver wants to open
the throttle plate. The GPEC1 calculates an initial camshaft set point based on
whether the accelerator pedal is at part throttle or wide open throttle.

The MAP sensor provides information regarding engine load.

Sensed battery voltage provides information regarding current system voltage.

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Sensed battery voltage must be at least 10 volts in order for the oil control valves
to function properly.

This information allows the GPEC1 to adjust camshaft timing to achieve the best
fuel economy, the best engine performance or a combination of both. The hall-
effect crankshaft sensor provides RPM information and determines when the
number one piston is approaching Top Dead Center. The sensor generates a
signal as the tone wheel, attached to the crankshaft, rotates. The tone wheel has
60 teeth minus two. When the gap, created by the missing teeth passes by the
sensor, a signal is produced that indicates the number one piston is at Top Dead
Center. The GPEC1 uses crankshaft sensor data along with camshaft data to
determine the actual position of the camshaft. There are two hall-effect camshaft
sensors on engines equipped with variable valve timing. The GPEC1 uses
camshaft sensor data along with crankshaft data to determine the actual position

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of the camshaft.
The GPEC1 individually controls each valve. It sends a pulse width modulated
signal to move a spool within the outer casing of the valve. Depending upon
spool movement, oil is directed through the passages to advance or retard cam
timing. The oil control valve also has a special cleaning strategy at key-on. The
cleaning strategy is known as "debris crush mode". At key-on the GPEC1 cycles
the oil control valve on and off several (5) times to crush any debris in the oil
control valve and prevent the spool valve from sticking. In non operating
condition, the camshaft stays in lockpin position of cam phases. This is 120
degrees ATDC for intake camshaft and 120 degrees BTDC for exhaust camshaft.

There are two oil control valves. One valve directs oil to the intake cam phaser,
the other valve directs oil to the exhaust cam phaser. The valves are designed and
function in the same manner. The outer casing of each oil valve has five oil
passages. A passage for pressurized supply oil. A passage to the advance
chamber of the cam phaser. A passage to the retard chamber of the cam phaser.
A passage for oil return from the advance chamber of the cam phaser. A passage
for oil return from the retard chamber of the cam phaser. Oil flows through the
passages and applies pressure to the cam phasers to change cam timing.
There are two cam phasers. One phaser controls the position of the intake
camshaft. The other phaser controls the position of the exhaust camshaft. The
phasers consist of a sprocket, a rotor vane, and a housing or stator. The exhaust
cam phaser also consists of a front bushing and spring. We will discuss the

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purpose and function of the bushing and spring later. The housing is bolted and
permanently fixed to the camshaft sprocket, while the rotor vane is bolted and
permanently fixed to the camshaft. With this design, any movement of the rotor
vane in relation to the housing will also move the camshaft. The phaser and
sprocket are serviced as an assembly.
Camshaft and crankshaft sensors provide feedback to the GPEC1 regarding the
actual position of the camshafts. The GPEC1 then compares the actual camshaft
positioning with desired positioning. If the desired positioning is not achieved
within a specified time, during the second key cycle a trouble code is set.

There are six new diagnostic trouble codes available to help you determine if the
control circuit from the GPEC1 to the oil control valve is intact and operating
properly. The codes identify whether the control circuit is open, shorted to

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ground, or shorted to power. Three trouble codes are related to intake camshaft
positioning, the other three codes are specific to exhaust camshaft positioning.

The oil control valve contains both electrical and mechanical components. It is
electrically controlled by the GPEC1. The electrical current that energizes the
coil results in mechanical motion of the spool valve. It is possible to verify both
the electrical and mechanical operation of the valve. The oil control valve
consists of a coil that is energized to move a spool within an outer casing. The
condition of the coil can be tested with a Digital Volt Ohmmeter or DVOM.
With the DVOM set to measure resistance, check the coil for an open, a short to
ground, or excessive resistance. The correct resistance value of the coil is
between 6 and 8 ohms. The mechanical operation of the oil control valve can be
tested using actuator commands on the scan tool. Remove the oil control valve,
then navigate to the actuator menu and select the oil control valve. Use
commands to activate the valve and watch as the spool valve moves back and
forth inside the casing.

Because the cam phasers are hydraulically operated by engine oil, the condition
of the oil is very important. The oil must be of the correct viscosity, not
obstructed by debris, to maintain correct pressure. Maintaining the correct oil
viscosity is critical to the operation of the variable valve timing system. The
wrong oil viscosity may cause the variable valve timing to malfunction and
trouble codes to set. The correct oil viscosity for this system is 5W20. Oil must
be clean, unobstructed and free to flow through the variable valve timing system.
Oil could become obstructed in oil passages located in the cylinder head,

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cylinder block, or even in the oil screen. In the event oil flow is obstructed,
further diagnosis or disassembly may be required to pin point the source of the
obstruction. The variable valve timing system relies on oil pressure to advance or
retard the position of the camshaft. Insufficient oil pressure will adversely affect
the operation of variable valve timing. The minimum oil pressure for this system
is 15 psi at normal operating temperature.

Though not directly used to change camshaft positioning, the oil screen is an
important component of the variable valve timing system. It helps to remove
debris going to the variable valve timing components. The oil screen is located in
the cylinder block, immediately below the cylinder head. Oil must pass through
the oil screen before entering the oil control valve. The cylinder head must be
removed to service the oil screen. The intention is not to service the oil screen
during vehicle life.

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How the cam phaser works. The cam phaser assembly has eight separate
chambers; four advance chambers and four retard chambers. When camshaft
advance is requested, oil enters all four advance chambers and exerts force on the
rotor vane. Because the rotor vane is bolted to the camshaft, the entire camshaft
profile moves along with the rotor vane. At the same time, oil is forced out of the
retard chambers. When camshaft retard is requested oil enters the retard
chambers to move the camshaft in the opposite direction. There is a lock pin on
one side of the rotor vane that fits inside a recessed area in the housing. The lock
pin ensures that the default position of the intake cam phaser is 120 crankshaft
degrees full retard and the default position of the exhaust cam phaser is 120
crankshaft degrees full advance. When the engine is turned off, rotational force
and inertia move the intake camshaft and rotor vane toward the retard position.
The exhaust cam phaser includes a spring and bushing to work against the
rotational force of the engine, allowing the exhaust cam phaser to lock in the
fully advanced position. Under most conditions the cam phasers are returned to
lock pin position when the engine is turned off. In the unique condition of an
engine stall, which abruptly shuts off the engine, the cam phasers may not return
to the lock pin position. In this case, the phasers will return to the lock pin
position at the next start-up. Lock pin position is the most ideal cam timing for
idle stability. When engine RPM exceeds approximately 600 to 1000 RPM, oil
pressure unlocks the pins and variable valve timing resumes. Once enabling
conditions are met, the GPEC1 uses input from sensors to calculate optimum
valve timing.

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There are four preprogrammed modes from which the GPEC1 bases initial valve
timing.

Starting
Idle or Part throttle
Wide open throttle
Limp-in or Default
From each preprogrammed mode, the GPEC1 adjusts valve timing based on
operating conditions.
GPEC1 has calculated optimum intake valve timing of 112 degrees after Top
Dead Center and optimum exhaust valve timing of 97 degrees before Top Dead

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Center. The GPEC1 pulse width modulates the oil control valves to advance or
retard the camshaft to their desired location. The spool valve inside the intake oil
control valve is energized and moves to allow pressurized oil into the advance
chambers of the intake cam phaser. At the same time, the spool valve inside the
exhaust oil control valve is energized and moves to allow pressurized oil into the
retard chambers of the exhaust cam phaser. Oil enters the advance chambers of
the intake phaser and the retard chambers of the exhaust phaser. Oil pressure
releases the lock pin from its locked position and pushes against the rotor vane.
Both the rotor vanes are moved, advancing the intake camshaft and retarding the
exhaust camshaft.
REMOVAL

FRONT SOLENOID 1/1

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Fig. 285: Oil Pressure Sensor

Courtesy of CHRYSLER GROUP, LLC
1. Disconnect negative battery cable.
2. Remove engine cover.
3. Rotate hose clamp out of way.
4. Disconnect oil pressure sensor electrical connector.
5. Remove oil pressure sensor.
6. Disconnect variable valve timing solenoid electrical connector.

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Fig. 286: Solenoid Mounting Bolt
Courtesy of CHRYSLER GROUP, LLC
7. Remove variable valve timing solenoid mounting bolt.

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Fig. 287: Solenoid Mounting Tab 1/1

Courtesy of CHRYSLER GROUP, LLC
8. Pull solenoid straight out of cylinder head.
REAR SOLENOID 1/2

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Fig. 288: Solenoid Location 1/2
Courtesy of CHRYSLER GROUP, LLC
1. Disconnect negative battery cable.
2. Remove engine cover.
3. Disconnect variable valve timing solenoid electrical connector.
4. Remove variable valve timing solenoid mounting bolt.

Fig. 289: Solenoid Mounting Tab 1/2

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Courtesy of CHRYSLER GROUP, LLC

5. Pull solenoid straight out of cylinder head.
INSTALLATION

FRONT SOLENOID 1/1

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Fig. 290: Solenoid Mounting Tab 1/1
Courtesy of CHRYSLER GROUP, LLC
1. Solenoid for front location 1/1. Note mounting tab location is different
between front and rear solenoids.

Fig. 291: Solenoid Mounting Bolt

Courtesy of CHRYSLER GROUP, LLC

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2. Install solenoid into cylinder head.

3. Install mounting bolt and tighten to 12 N.m (9 ft. lbs.).

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Fig. 292: Oil Pressure Sensor
Courtesy of CHRYSLER GROUP, LLC
4. Install oil pressure sensor.
5. Connect electrical connector to oil pressure sensor.
6. Connect electrical connector to Variable valve timing solenoid.
7. Connect negative battery cable.
8. Install engine cover.
REAR SOLENOID 1/2

Fig. 293: Solenoid Mounting Tab 1/2

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Courtesy of CHRYSLER GROUP, LLC

1. Rear variable valve timing solenoid. Note mounting tab location is different
between front and rear solenoids.
2. Install solenoid into cylinder head.
3. Install mounting bolt and tighten to 12 N.m (9 ft. lbs.).
4. Connect electrical connector to Variable valve timing solenoid.

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Fig. 294: Solenoid Location 1/2
Courtesy of CHRYSLER GROUP, LLC
5. Connect negative battery cable.
6. Install engine cover.
COOLER, OIL

DESCRIPTION

DESCRIPTION

An engine oil cooler is used on some engine packages. The cooler is a coolant-
to-oil type and mounted between the oil filter and oil filter adapter.
REMOVAL

REMOVAL

NOTE: The oil cooler can not be cleaned out. In the event that
the engine requires rebuilding or replacement, the oil

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cooler should be replaced.

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Fig. 295: Oil Cooler
Courtesy of CHRYSLER GROUP, LLC
1. Raise vehicle on hoist.
2. Drain cooling system. Refer to STANDARD PROCEDURE .
3. Disconnect oil cooler coolant hoses.
4. Remove oil filter (3).

Fig. 296: Oil Cooler & Oil Cooler Connector Bolt

Courtesy of CHRYSLER GROUP, LLC

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5. Remove oil cooler connector bolt (2).

6. Remove oil cooler (1).
INSTALLATION

INSTALLATION

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Fig. 297: Oil Cooler & Oil Cooler Connector Bolt
Courtesy of CHRYSLER GROUP, LLC
1. Replace oil cooler seal (1).
2. Lubricate seal and position oil cooler to oil filter adapter, aligning notch to
tab.
3. Install oil cooler connector bolt (2). Tighten connector bolt to 49 N.m (36 ft.
lbs.).

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Fig. 298: Oil Cooler

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Courtesy of CHRYSLER GROUP, LLC
4. Install oil filter (3).
5. Connect oil cooler coolant hose.
6. Lower vehicle.
7. Fill cooling system. Refer to STANDARD PROCEDURE .
FILTER, ENGINE OIL

REMOVAL

REMOVAL

Fig. 299: Oil Filter

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Courtesy of CHRYSLER GROUP, LLC

CAUTION: When servicing the oil filter, avoid deforming the

filter can by installing the remove/install tool band
strap against the can to base lock seam. The lock
seam joining the can to the base is reinforced by
the base plate.

1. Using a suitable filter wrench, turn oil filter (1) counterclockwise to remove.
INSTALLATION

INSTALLATION

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Fig. 300: Oil Filter
Courtesy of CHRYSLER GROUP, LLC
1. Clean and check filter mounting surface. The surface must be smooth, flat
and free of debris or pieces of gasket.
2. Lubricate new oil filter gasket.
3. Screw oil filter (1) on until the gasket contacts base. Tighten to 14 N.m (10
ft. lbs.).
OIL

STANDARD PROCEDURE

ENGINE OIL AND FILTER CHANGE

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WARNING: New or used engine oil can be irritating to the

skin. Avoid prolonged or repeated skin contact
with engine oil. Contaminants in used engine oil,
caused by internal combustion, can be hazardous
to your health. Thoroughly wash exposed skin
with soap and water. Do not wash skin with
gasoline, diesel fuel, thinner, or solvents, health
problems can result. Do not pollute, dispose of
used engine oil properly. Contact your dealer or
government agency for location of collection
center in your area.

Change engine oil at mileage and time intervals described in the Maintenance

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Schedule. Refer to MAINTENANCE SCHEDULES, DESCRIPTION .

Fig. 301: Oil Drain Plug

Courtesy of CHRYSLER GROUP, LLC
1. Run engine until achieving normal operating temperature.
2. Position the vehicle on a level surface and turn engine off.
3. Remove oil fill cap.
4. Raise vehicle on hoist.
5. Place a suitable oil collecting container under oil pan drain plug (2).
6. Remove oil pan drain plug (2) or and allow oil to drain into collecting
container. Inspect drain plug threads for stretching or other damage. Replace
drain plug and gasket if damaged.

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Fig. 302: Oil Filter

Courtesy of CHRYSLER GROUP, LLC

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7. Remove oil filter (1). Refer to FILTER, ENGINE OIL, REMOVAL.

Fig. 303: Oil Drain Plug

Courtesy of CHRYSLER GROUP, LLC
8. Install oil pan drain plug (2) and tighten drain plug to 40 N.m (30 ft. lbs.).

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Fig. 304: Oil Filter

Courtesy of CHRYSLER GROUP, LLC

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9. Install new oil filter (1), tighten to 14 Nm (10 ft. lbs.). Refer to FILTER,
ENGINE OIL, INSTALLATION.
10. Lower vehicle and fill crankcase with specified type and amount of engine
oil. Refer to CAPACITIES AND RECOMMENDED FLUIDS,
DESCRIPTION and CAPACITIES AND RECOMMENDED FLUIDS,
SPECIFICATIONS .
11. Install oil fill cap.
12. Start engine and inspect for leaks.
13. Stop engine and inspect oil level.
OIL FILTER SPECIFICATION

All engines are equipped with a high quality full-flow, disposable type oil filter.
Replace oil filter with a Mopar® or the equivalent.
USED ENGINE OIL DISPOSAL

Care should be exercised when disposing used engine oil after it has been
drained from a vehicle engine. Refer to the WARNING listed above under
ENGINE OIL AND FILTER CHANGE.
PAN, OIL

REMOVAL

REMOVAL

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Fig. 305: Oil Drain Plug

Courtesy of CHRYSLER GROUP, LLC

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1. Raise vehicle on hoist.
2. Remove oil drain plug (2) and drain the engine oil.
3. Remove accessory drive belt splash shield.

Fig. 306: A/C Compressor

Courtesy of CHRYSLER GROUP, LLC
4. Remove lower A/C compressor mounting bolt (if equipped).
5. Remove A/C mounting bracket (2).

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Fig. 307: Oil Pan Removal

Courtesy of CHRYSLER GROUP, LLC

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NOTE: Do not use pry points in block to remove oil pan.

6. Remove oil pan retaining bolts.

7. Using a putty knife (1), loosen seal around oil pan (2).
8. Remove oil pan (2).
INSTALLATION

INSTALLATION

Fig. 308: Sealer Location

Courtesy of CHRYSLER GROUP, LLC

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NOTE: Oil pan sealing surfaces must be free of grease or oil.

NOTE: Parts must be assembled within 10 minutes of applying

RTV.

1. Apply Mopar® Engine RTV GEN II at the front cover to engine block
parting lines (1).

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Fig. 309: Sealing Oil Pan
Courtesy of CHRYSLER GROUP, LLC
2. Apply a 2 mm bead of Mopar® Engine RTV GEN II around the oil pan as
shown in illustration.
3. Position oil pan and install bolts. Tighten bolts to 12 N.m (105 in. lbs.).

NOTE: The 2 long bolts must be tightened to 22 N.m (195 in.

lbs.).

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Fig. 310: Oil Drain Plug

Courtesy of CHRYSLER GROUP, LLC

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4. Install oil drain plug (2).
5. Lower vehicle and fill engine crankcase with proper oil to correct level.
6. Start engine and check for leaks.
PLUG, OIL

DESCRIPTION

DESCRIPTION

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Fig. 311: Tapered Plugs
Courtesy of CHRYSLER GROUP, LLC
The engine block has three tapered plugs sealing the high pressure oil gallery.
These threaded plugs do not have a torque specification but instead are installed
to a specific depth. Do not attempt to further tighten these plugs, damage to the
engine block could result. Whenever these plugs are removed they must be
replaced. Service plugs have a lock patch and do not require the application of
additional sealant.
REMOVAL

REMOVAL

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Fig. 312: Gallery Plug

Courtesy of CHRYSLER GROUP, LLC

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CAUTION: Excessive use of brake parts cleaner to clean
threads in block could cause #5 main bearing
failure.

NOTE: Rear plug shown in illustration, other plugs are similar.

1. Remove the plug (2) from the engine block.

2. Use Mopar® Brake Parts Cleaner (or equivalent) sparingly to clean the
block.
INSTALLATION

INSTALLATION

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Fig. 313: Gallery Plug

Courtesy of CHRYSLER GROUP, LLC

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CAUTION: Excessive use of brake parts cleaner to clean
threads in block could cause #5 main bearing
failure.

NOTE: Rear plug shown in illustration, other plugs are similar.

1. Use Mopar® Brake Parts Cleaner (or equivalent) sparingly to clean the
block.
2. Install the plug (2) flush with the block boss face (1). The plug (2) is
correctly installed when it is flush or protruding no more than 1 mm from
the block boss face (1).
PUMP, ENGINE OIL

DESCRIPTION

DESCRIPTION

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Fig. 314: Balance Shaft Module (BSM) Identification

Courtesy of CHRYSLER GROUP, LLC

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The oil pump is integral to the balance shaft module (BSM) (2). The oil pump
cannot be disassembled for inspection. The pressure relief valve is serviceable
and can be removed and inspected. The BSM can be identified by the plastic end
caps (1).
REMOVAL

REMOVAL

A multimedia supplement to the instructions contained in

this article is available.
To view the multimedia example of the condition described
go to;
http://www.youtube.com/user/Mitchell1Tips
then type "A00612697.vid1" into the "Search Channel"
box.

When removing and installing the Balance Shaft/Oil Pump assembly in the
vehicle, it is not necessary to align the plated links on the drive chain as long
as the reference marks are created during the procedure.
1. Remove the oil pan

Refer to PAN, OIL, REMOVAL.

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Fig. 315: Aligning Balance Shaft/Oil Pump Drive Gear And Housing

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Indicator
Courtesy of CHRYSLER GROUP, LLC
2. Rotate the engine clockwise until the balance shaft/oil pump drive gear and
the housing indicator are aligned.

NOTE: IT IS VERY IMPORTANT THAT THE CRANKSHAFT

STAYS STATIONARY DURING THE FOLLOWING
STEPS. DO NOT MOVE THE CRANKSHAFT UNTIL
THE INSTALLATION PROCEDURE IS COMPLETED.

3. Clean the balance shaft/oil pump assembly drive gear with Mopar® brake
cleaner or similar.

NOTE: Make sure the gear is clear of any oil to allow for
marking.

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Fig. 316: Oil Pump Chain And Sprocket To Module Body Marks

cardiagn.com
Courtesy of CHRYSLER GROUP, LLC
4. If the balance shaft/oil pump assembly is being reused, mark the oil pump
chain and the sprocket (1) to the module body (2) for reassembly.
5. Install one air-conditioning compressor bracket bolt into the left forward
corner thread boss.

NOTE: The bolt will provide a sturdy point to secure a tie

strap to hold the tensioner in the compressed
position.

Fig. 317: Positioning Plastic Tie Strap

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Courtesy of CHRYSLER GROUP, LLC

6. Position a plastic tie strap (3) around the chain, tensioner (4) and bolt (2)
that was previously installed.
7. Push the chain, guide and tensioner (1) to the compressed position.
8. Tighten the tie strap to hold the components together.

NOTE: The tighter the strap, the more room for removal and
installation.

9. Remove the balance shaft/oil pump assembly mounting bolts.

10. Remove assembly from the engine by tilting the rear of the balance shaft/oil
pump assembly downward while lifting the drive gear out of the chain links.

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INSPECTION

INSPECTION

Fig. 318: Oil Pump Chain Stretch

Courtesy of CHRYSLER GROUP, LLC
1. Remove timing chain cover. Refer to COVER(S), ENGINE TIMING,
REMOVAL.
2. Remove oil pan. Refer to PAN, OIL, REMOVAL.
3. Measure the distance between the tensioner body and the guide shoe as
shown in illustration.
4. If the distance is 10.1 mm (0.397 in.) or greater, replace the chain.

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INSTALLATION

INSTALLATION

A multimedia supplement to the instructions contained in

this article is available.
To view the multimedia example of the condition described
go to;
http://www.youtube.com/user/Mitchell1Tips
then type "A00612697.vid2" into the "Search Channel"
box.

CAUTION: There are two different Balance Shaft Module

(BSM) to engine block bolts used. 180 mm bolts

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with a lock-patch on the threads or 185 mm bolts
without lock-patch. Do not reuse the 180 mm bolts.
Always discard 180 mm bolts after removing.
Failure to replace these bolts can result in engine
damage. The 185 mm bolts are reusable. Install the
same length bolts that were removed and use
either four new 180 mm bolts or four 185 mm bolts.

Fig. 319: Checking Cylinder Head Bolts For Stretching (Necking)

Courtesy of CHRYSLER GROUP, LLC
1. The 185 mm (7.283 in.) length bolts must be checked for stretching. Check
the bolts with a straight edge for necking (2). If the bolts are necked down,

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they must be replaced.

2. Clean the balance shaft/oil pump assembly mounting holes with Mopar®
brake parts cleaner.
3. Align the marks on the balance shaft/oil pump assembly and drive sprocket.

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Fig. 320: Aligning Balance Shaft/Oil Pump Drive Gear And Housing
Indicator
Courtesy of CHRYSLER GROUP, LLC
4. With the rear of the balance shaft/oil pump assembly on a slight downward
angle, position the gear into the chain links. Make sure the paint marks are
aligned.
5. Pivot balance shaft/oil pump assembly upwards and position on ladder
frame.

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Fig. 321: Balance Shaft Module Torque Sequence

Courtesy of CHRYSLER GROUP, LLC

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6. Start balance shaft/oil pump assembly mounting bolts by hand.

NOTE: Use a three step procedure when tightening balance

shaft/oil pump assembly mounting bolts. For new 180
mm bolts, go to step 7. For 185 mm bolts, go to step
8.

7. Tighten new 180 mm balance shaft/oil pump assembly mounting bolts as

follows:
a. Tighten to 15 N.m (11 ft. lbs.) in the sequence shown in illustration.
b. Tighten to 33 N.m (24 ft. lbs.) in the sequence shown in illustration.
c. Rotate bolts an additional 90° in the sequence shown in illustration.
8. Tighten 185 mm balance shaft/oil pump assembly mounting bolts as
follows:
1. Tighten to 15 N.m (11 ft. lbs.) in the sequence shown in illustration.
2. Tighten to 29 N.m (22 ft. lbs.) in the sequence shown in illustration.
3. Rotate bolts an additional 90° in the sequence shown in illustration.

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Fig. 322: Oil Pump Chain And Sprocket To Module Body Marks

cardiagn.com
Courtesy of CHRYSLER GROUP, LLC
9. Double check the alignment marks to ensure the gear (1) and balance
shaft/oil pump assembly indicator (2) is aligned.

Fig. 323: Positioning Plastic Tie Strap

Courtesy of CHRYSLER GROUP, LLC
10. Remove the tie strap (3).
11. Remove the bracket bolt (2).
12. Inspect that the tensioner (1) has fully extended and applied pressure to the
guide and chain (4).

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13. Install the oil pan

Refer to PAN, OIL, INSTALLATION.

14. Fill engine with oil.

15. Start engine and check for leaks.
SENSOR, OIL TEMPERATURE

REMOVAL

REMOVAL

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Fig. 324: Oil Temperature Sensor
Courtesy of CHRYSLER GROUP, LLC
1. Disconnect oil temperature sensor (1) electrical connector.
2. Remove sensor (1).
INSTALLATION

INSTALLATION

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Fig. 325: Oil Temperature Sensor

Courtesy of CHRYSLER GROUP, LLC

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1. If re-using the oil temperature sensor, coat the threads with Mopar® thread
sealant.
2. Install oil temperature sensor (1). Tighten to 18 N.m (160 in. lbs.).
3. Connect electrical connector.
SWITCH, OIL PRESSURE

DESCRIPTION

DESCRIPTION

The oil pressure switch is located on the left front side of the engine block. The
oil pressure switch is a pressure sensitive switch that is activated by the engine's
oil pressure (in the main oil gallery). The switch is a two terminal device (one
terminal is provided to the wiring harness and the other terminal is the switch's
metal housing that screws into the engine block).
OPERATION

OPERATION

The oil pressure switch is normally "Closed." The switch changes from a
"Closed" circuit to an "Open" circuit, on increasing pressure of 7 psig. The oil
pressure switch changes from an "Open" circuit to a "Closed" circuit, on
decreasing pressure, between 2 psig and 4 psig.
REMOVAL

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REMOVAL

NOTE: If the oil pressure switch is removed, it must be replaced

with a new switch.

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Fig. 326: A/C Compressor Removal/Installation
Courtesy of CHRYSLER GROUP, LLC
1. Disconnect and isolate the negative battery cable.
2. Raise and support the vehicle.
3. Remove the front skid plate, if equipped.
4. Remove the splash shield from the right side frame rail. Refer to SHIELD,
SPLASH, FRONT WHEELHOUSE, REMOVAL .
5. Remove the accessory drive belt. Refer to BELT, SERPENTINE,
REMOVAL .
6. Remove the three bolts (2) and reposition the A/C compressor (1).

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Fig. 327: Oil Sender

Courtesy of CHRYSLER GROUP, LLC

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7. Disconnect the oil pressure switch electrical connector.
8. Remove the oil pressure switch using Oil Pressure Socket (special tool #C-
4597, Socket, Oil Pressure) (1) or equivalent and discard the switch.
INSTALLATION

INSTALLATION

CAUTION: The oil pressure switch has tapered threads, over

tightening could crack the engine block.

Fig. 328: Oil Sender

Courtesy of CHRYSLER GROUP, LLC

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1. Install a new oil pressure switch using Oil Pressure Socket (special tool #C-
4597, Socket, Oil Pressure) (1) or equivalent. Tighten switch to 8 N.m (71
in. lbs.).
2. Connect the oil pressure switch electrical connector.

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Fig. 329: A/C Compressor Removal/Installation
Courtesy of CHRYSLER GROUP, LLC
3. Position the A/C compressor (1) and install three mounting bolts (2).
Tighten bolts to 25 N.m (18 ft. lbs.).
4. Install the accessory drive belt. Refer to BELT, SERPENTINE,
INSTALLATION .
5. Install the splash shield to the right side frame rail. Refer to SHIELD,
SPLASH, FRONT WHEELHOUSE, INSTALLATION .
6. Install the front skid plate, if equipped.
7. Reconnect the negative battery cable.
VALVE, OIL PRESSURE RELIEF

REMOVAL

REMOVAL

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Fig. 330: Oil Pressure Relief Valve

Courtesy of CHRYSLER GROUP, LLC

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1. Remove oil pan Refer to PAN, OIL, REMOVAL.
2. Remove pressure regulating valve cap (2).
3. Remove pressure regulating valve spring (3) and valve (4).
INSPECTION

INSPECTION

Fig. 331: Oil Pressure Relief Valve

Courtesy of CHRYSLER GROUP, LLC

NOTE: Pressure regulating valve (4) can be service separately

from the oil pump assembly.

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1. Inspect pressure relief valve (4) scoring, gouging, or debris. Replace as

needed.
2. Inspect the pressure relief valve bore in the pump for scoring, gouging, or
debris.
3. If pump bore is damaged, replace balance shaft module.
INSTALLATION

INSTALLATION

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Fig. 332: Oil Pressure Relief Valve
Courtesy of CHRYSLER GROUP, LLC
1. Lightly coat pressure regulating valve with clean engine oil and install valve
(4).
2. Install spring (3) and cap (2).
3. Tighten cap to 44 N.m (32 lbs. ft.).
MANIFOLDS
MANIFOLD, EXHAUST

REMOVAL

REMOVAL - MANIVERTER (AWD)

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Fig. 333: Engine Cover

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Courtesy of CHRYSLER GROUP, LLC
1. Remove the engine cover (1).

Fig. 334: Retainers, Fresh Air Inlet Duct & Air Cleaner Body
Courtesy of CHRYSLER GROUP, LLC
2. Unlock the retainers (2) and remove the fresh air inlet duct (3) from air
cleaner body (1).
3. Disconnect and isolate the negative battery cable.

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Fig. 335: Maniverter Heat Shield And Bolts
Courtesy of CHRYSLER GROUP, LLC
4. Remove the upstream oxygen sensor (2) Refer to SENSOR, OXYGEN,
REMOVAL .
5. Remove the upper heat shield attaching bolts (1) and the upper heat shield
(3).

Fig. 336: Removal/Installation Front Skid Plate And Bolts

Courtesy of CHRYSLER GROUP, LLC
6. Raise and support the vehicle. Refer to HOISTING, STANDARD
PROCEDURE .

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7. If equipped, remove seven bolts (2) and the front skid plate (1).

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Fig. 337: Belly Pan & Fasteners
Courtesy of CHRYSLER GROUP, LLC
8. If equipped, remove the side push pin fasteners (1), three rear screws (2),
three front screws (4) and the belly pan (3).

Fig. 338: Exhaust To Maniverter Bolts

Courtesy of CHRYSLER GROUP, LLC
9. Partially drain the cooling system Refer to STANDARD PROCEDURE .

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10. Disconnect the wire harness connector from the downstream oxygen sensor
(2).
11. Remove the exhaust pipe to maniverter bolts (1) and reposition the exhaust
pipe.

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Fig. 339: Steering Gear Heat Shield Bolts
Courtesy of CHRYSLER GROUP, LLC
12. Remove three bolts (1) and the steering gear heat shield (3).

Fig. 340: Removing/Installing Fore/Aft Crossmember

Courtesy of CHRYSLER GROUP, LLC
13. Remove the front engine mount bolt (2) and the front fore and aft

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crossmember (4). Refer to CROSSMEMBER, FRONT FORE AND AFT,

REMOVAL .

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Fig. 341: Maniverter To Block Support Bracket
Courtesy of CHRYSLER GROUP, LLC
14. Remove the four bolts (1) and the maniverter support bracket (2).
15. Remove exhaust maniverter lower retaining fasteners.

Fig. 342: Refrigerant Lines To Evaporator Bolt

Courtesy of CHRYSLER GROUP, LLC
16. Lower the vehicle.

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17. Remove the heater hoses (4) and installed plugs or caps to the heater core
tubes.

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Fig. 343: Dash Panel Heatshield & Nuts
Courtesy of CHRYSLER GROUP, LLC
18. Remove three speed-nuts (2) and the dash panel heatshield (1).

Fig. 344: Lower Maniverter Heatshield

Courtesy of CHRYSLER GROUP, LLC
19. Remove the upper exhaust maniverter retaining fasteners and reposition the
maniverter.

NOTE: The lower maniverter heatshield (1) must be removed

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from the maniverter before the maniverter is removed

from the vehicle.

20. Remove the lower heat shield (1) from the maniverter.

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Fig. 345: Heatshield, Stud Bolt, Engine Lift Bracket & Nut
Courtesy of CHRYSLER GROUP, LLC
21. Remove the nut (4) and repositioned the heatshield (1).
22. Remove the stud bolt (3) and the engine lift bracket (2).

Fig. 346: Engine Cover Mounting Posts

Courtesy of CHRYSLER GROUP, LLC
23. Remove two engine cover mounting posts (1).

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Fig. 347: Windshield Washer Reservoir, Power Steering Reservoir,

Coolant Reservoir & Bolts

cardiagn.com
Courtesy of CHRYSLER GROUP, LLC
24. Remove the bolt (5) and reposition the engine coolant reservoir (6).
25. Remove the bolt (4) and reposition the power steering fluid reservoir (2).
26. Remove the bolt (3) and reposition the washer fluid reservoir (1).

Fig. 348: Removing/Installing Power Steering Hose Hold Down

Courtesy of CHRYSLER GROUP, LLC
27. Remove the bolt (2) from the power steering pressure hose support bracket.

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Fig. 349: Engine Mount Isolator, Right Engine Mount & Engine Mount
Bracket Retaining Bolts

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Courtesy of CHRYSLER GROUP, LLC
28. Support the engine with a block of wood on a suitable jack.
29. Remove the engine mount isolator retaining bolts (3).
30. Remove the engine mount bracket retaining bolts (1) and remove the right
engine mount (4).

Fig. 350: Rotating Maniverter Counterclockwise

Courtesy of CHRYSLER GROUP, LLC
31. Adjust the jack to lower the engine.
32. Rotate the maniverter (1) counterclockwise 180° and remove it from
above/between the engine and dash panel.

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33. Remove and discard the maniverter gasket.

REMOVAL

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Fig. 351: Engine Cover - 2.4L
Courtesy of CHRYSLER GROUP, LLC
1. Remove engine cover (1).
2. Disconnect negative cable from battery.

Fig. 352: Exhaust Manifold Heat Shield

Courtesy of CHRYSLER GROUP, LLC
3. Remove bolts (2) attaching upper heat shield.

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4. Remove upper heat shield (1).

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Fig. 353: Exhaust Manifold Bolts, Heat Shield & Oxygen Sensor
Connector
Courtesy of CHRYSLER GROUP, LLC
5. Disconnect exhaust pipe (1) from manifold.
6. Disconnect oxygen sensor electrical connector (3).

Fig. 354: Exhaust Manifold Support Bracket

Courtesy of CHRYSLER GROUP, LLC
7. Remove manifold support bracket (2).
8. Remove lower exhaust manifold heat shield.

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Fig. 355: Exhaust Manifold Retaining Fasteners Tightening Sequence

Courtesy of CHRYSLER GROUP, LLC

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9. Remove exhaust manifold retaining fasteners.
10. Remove and discard manifold gasket.
CLEANING

CLEANING

1. Discard gasket (if equipped) and clean all surfaces of manifold and cylinder
head.
INSPECTION

INSPECTION

1. Inspect manifold gasket surfaces for flatness with straight edge. Surface
must be flat within 0.15 mm per 300 mm (0.006 in. per foot) of manifold
length.
2. Inspect manifolds for cracks or distortion. Replace manifold as necessary.
INSTALLATION

INSTALLATION - MANIVERTER (AWD)

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Fig. 356: Rotating Maniverter Clockwise

Courtesy of CHRYSLER GROUP, LLC

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1. Install a new maniverter gasket on the cylinder head. DO NOT APPLY
SEALER .
2. Position the maniverter (1) in the engine compartment as shown in
illustration. Rotate the maniverter 180° clockwise into position.

Fig. 357: Engine Mount Isolator, Right Engine Mount & Engine Mount
Bracket Retaining Bolts
Courtesy of CHRYSLER GROUP, LLC
3. Raise the engine and position the right engine mount (4) in place.
4. Install the engine mount bracket retaining bolts (1) and tighten to 68 N.m
(50 ft. lbs.).

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5. Install engine mount isolator retaining bolts (3) and tighten to 75 N.m (55 ft.
lbs.).
6. If removed, install the engine mount through bolt (2) and tighten to 88 N.m
(65 ft. lbs.).

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Fig. 358: Removing/Installing Power Steering Hose Hold Down
Courtesy of CHRYSLER GROUP, LLC
7. Install the power steering pressure hose support bracket to the engine mount
bracket (8) with the bolt (2) tightened to 18 N.m (14 ft. lbs.).

Fig. 359: Windshield Washer Reservoir, Power Steering Reservoir,

Coolant Reservoir & Bolts
Courtesy of CHRYSLER GROUP, LLC

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8. Install the washer fluid reservoir (1) with the bolt (3) tightened to 9 N.m (79
in. lbs.).
9. Install the power steering fluid reservoir (2) with the bolt (4) tightened to 12
N.m (106 in. lbs.).
10. Install the engine coolant reservoir (6) with the bolt (5) tightened to 4 N.m
(35 in. lbs.).

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Fig. 360: Engine Cover Mounting Posts
Courtesy of CHRYSLER GROUP, LLC
11. Install two engine cover mounting posts (1) and tighten to 4 N.m (35 in.
lbs.).

Fig. 361: Heatshield, Stud Bolt, Engine Lift Bracket & Nut
Courtesy of CHRYSLER GROUP, LLC

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12. Install the engine lift bracket (2) with the stud bolt (3) tightened to 25 N.m
(18 ft. lbs.).
13. Install the repositioned heatshield (1) to the stud bolt (3) with the nut (4)
tightened to 9 N.m (79 in. lbs.).

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Fig. 362: Lower Maniverter Heatshield
Courtesy of CHRYSLER GROUP, LLC

NOTE: The lower maniverter heatshield (1) must be placed in

position before the maniverter is installed to the
cylinder head.

14. Position the lower heat shield (1) in its installed position on the maniverter.

Fig. 363: Dash Panel Heatshield & Nuts

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Courtesy of CHRYSLER GROUP, LLC

15. Install the dash panel heatshield (1) with three speed-nuts (2) tightened to 1
N.m (10 in. lbs.).

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Fig. 364: Refrigerant Lines To Evaporator Bolt
Courtesy of CHRYSLER GROUP, LLC
16. Remove the previously installed plugs or caps and connect the heater hoses
(4) to the heater core tubes.

Fig. 365: Maniverter To Block Support Bracket

Courtesy of CHRYSLER GROUP, LLC

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17. Raise and support the vehicle. Refer to HOISTING, STANDARD

PROCEDURE .
18. Tighten the maniverter to cylinder head fasteners, starting at the center and
progressing outward in both directions to 34 N.m (300 in. lbs.). Raise and
lower the vehicle for fastener access as necessary.
19. Install the maniverter support bracket (2) with four bolts (1) tightened to 25
N.m (18 ft. lbs.).

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Fig. 366: Removing/Installing Fore/Aft Crossmember
Courtesy of CHRYSLER GROUP, LLC
20. Install the front fore and aft crossmember (4) and front engine mount bolt
(2). Refer to CROSSMEMBER, FRONT FORE AND AFT,
INSTALLATION .

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Fig. 367: Steering Gear Heat Shield Bolts

Courtesy of CHRYSLER GROUP, LLC

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21. Install the steering gear heat shield (3) with three bolts (1) tightened to 8
N.m (71 in. lbs.).

Fig. 368: Exhaust To Maniverter Bolts

Courtesy of CHRYSLER GROUP, LLC
22. Install the exhaust pipe to maniverter bolts (1) and tighten to 28 N.m (250
in. lbs.).
23. Connect the wire harness connector to the downstream oxygen sensor (2).

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Fig. 369: Belly Pan & Fasteners

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Courtesy of CHRYSLER GROUP, LLC
24. If removed, install the belly pan (3) with three front screws (4), three rear
screws (2) and side push pin fasteners (1).

Fig. 370: Removal/Installation Front Skid Plate And Bolts

Courtesy of CHRYSLER GROUP, LLC
25. If removed, install the front skid plate (1) with seven bolts (2) tightened to
30 N.m (22 ft. lbs.).

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Fig. 371: Maniverter Heat Shield And Bolts
Courtesy of CHRYSLER GROUP, LLC
26. Lower the vehicle.
27. Install the maniverter heat shields (3) with four bolts (1) tightened to 12 N.m
(106 in. lbs.).
28. Install the upstream oxygen sensor (2) and connect the electrical connector.
Refer to SENSOR, OXYGEN, INSTALLATION .

Fig. 372: Engine Cover - 2.4L

Courtesy of CHRYSLER GROUP, LLC

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29. Install the engine cover (1).

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Fig. 373: Retainers, Fresh Air Inlet Duct & Air Cleaner Body
Courtesy of CHRYSLER GROUP, LLC
30. Connect the negative battery cable and tighten nut to 5 N.m (45 in. lbs.).
31. Install the fresh air inlet duct (3) on the air cleaner body (1) and lock the
retainers (2).
32. Fill the cooling system. Refer to STANDARD PROCEDURE .
33. Run the engine until it reaches normal operating temperature. Check cooling
system for correct fluid level Refer to STANDARD PROCEDURE .
INSTALLATION

Fig. 374: Exhaust Manifold Retaining Fasteners Tightening Sequence

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Courtesy of CHRYSLER GROUP, LLC

1. Install a new exhaust manifold gasket DO NOT APPLY SEALER .
2. Position exhaust manifold in place.
3. Tighten the exhaust manifold bolts to 34 N.m (25 ft. lbs.).

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Fig. 375: Exhaust Manifold Heat Shield
Courtesy of CHRYSLER GROUP, LLC
4. Install exhaust manifold heat shields (1). Tighten bolts (2) to 12 N.m (105
in. lbs.).

Fig. 376: Exhaust Manifold Support Bracket

Courtesy of CHRYSLER GROUP, LLC

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5. Install exhaust manifold support bracket (2).

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Fig. 377: Exhaust Manifold Bolts, Heat Shield & Oxygen Sensor
Connector
Courtesy of CHRYSLER GROUP, LLC
6. Install new catalytic converter gasket.
7. Install exhaust pipe to manifold (1). Tighten fasteners to 28 N.m (250 in.
lbs.).
8. Connect oxygen sensor electrical connector (3).

Fig. 378: Identifying Battery Cables

Courtesy of CHRYSLER GROUP, LLC
9. Connect negative battery cable (1).

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Fig. 379: Engine Cover - 2.4L

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Courtesy of CHRYSLER GROUP, LLC
10. Install engine cover (1).
MANIFOLD, INTAKE

DIAGNOSIS AND TESTING

DIAGNOSIS AND TESTING - INTAKE MANIFOLD LEAKS

An intake manifold air leak is characterized by lower than normal manifold

vacuum. Also, one or more cylinders may not be functioning.

WARNING: Use extreme caution when the engine is

operating. Do not stand in a direct line with the
fan. Do not put your hands near the pulleys, belts
or the fan. Do not wear loose clothing.

1. Start the engine.

2. Spray a small stream of water (Spray Bottle) at the suspected leak area.
3. If engine RPM'S change, the area of the suspected leak has been found.
4. Repair as required.
REMOVAL

REMOVAL

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WARNING: Release fuel system pressure before servicing

system components. Service vehicles in well
ventilated areas and avoid ignition sources. Never
smoke while servicing the vehicle.

cardiagn.com
Fig. 380: Engine Cover - 2.4l
Courtesy of CHRYSLER GROUP, LLC
1. Remove the engine cover (1).
2. Perform the fuel system pressure release procedure before attempting any
repairs. Refer to FUEL SYSTEM PRESSURE RELEASE
PROCEDURE .

Fig. 381: Retainers, Fresh Air Inlet Duct & Air Cleaner Body

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Courtesy of CHRYSLER GROUP, LLC

3. Unlock the retainers (2) and remove the fresh air inlet duct (3) from air
cleaner body (1).

cardiagn.com
Fig. 382: Electrical Connectors, PCM, Three Mounting Bolts & Ground
Wire
Courtesy of CHRYSLER GROUP, LLC
4. Disconnect and isolate the negative battery cable.
5. Unlock and disconnect the electrical connectors (2) from the PCM (4).
6. Remove the mounting bolt (3) and ground wire (1).

Fig. 383: Air Cleaner Body, Air Inlet Tube & Make-Up Air Hose
Courtesy of CHRYSLER GROUP, LLC

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7. Remove the air inlet tube (2) from the air cleaner body (1).
8. Disconnect the make-up air hose (3) from the air cleaner body.
9. Remove the support bracket bolt from the strut tower.
10. Pull upward to disengage the pins from the rubber grommets and remove the
air cleaner body (1).

cardiagn.com
Fig. 384: Ignition Coils, Air Hose, Fuel Line, Injectors & PCV Hose
Courtesy of CHRYSLER GROUP, LLC
11. Disconnect the fuel line (3) from the fuel rail. Refer to FITTING, QUICK
CONNECT .
12. Remove fuel injector electrical connectors (4).
13. Remove fuel rail retaining bolts and remove fuel rail.

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Fig. 385: Oil Temperature Sensor

Courtesy of CHRYSLER GROUP, LLC
14. Disconnect the oil temperature sensor (1).
15. Disconnect the variable valve timing solenoid electrical connector.
16. Disconnect the intake camshaft position sensor electrical connector.
17. Position the harness out of the way.

cardiagn.com
Fig. 386: Throttle Body Support
Courtesy of CHRYSLER GROUP, LLC
18. Remove the throttle body support bracket (1).
19. Disconnect the electronic throttle control electrical connector.
20. Remove the wiring harness retainer from the intake manifold (2).
21. Disconnect the MAP sensor electrical connector.
22. Disconnect the vacuum lines from the intake manifold.

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Fig. 387: Radiator Hose Support

Courtesy of CHRYSLER GROUP, LLC

cardiagn.com
23. Remove the upper radiator hose retaining bracket (1).

Fig. 388: Intake Manifold Bolt Removal & Tightening Sequence

Courtesy of CHRYSLER GROUP, LLC
24. Remove intake manifold retaining bolts.
25. Remove intake manifold.
CLEANING

CLEANING

1. Discard gasket(s).

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2. Clean all sealing surfaces.

INSTALLATION

INSTALLATION

cardiagn.com
Fig. 389: Intake Manifold Bolt Removal & Tightening Sequence
Courtesy of CHRYSLER GROUP, LLC
1. Clean all gasket surfaces.
2. Replace intake manifold gasket.
3. Install intake manifold, tighten bolts to 25 N.m (220 in. lbs.).

Fig. 390: Radiator Hose Support

Courtesy of CHRYSLER GROUP, LLC

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4. Install the upper radiator hose retaining bracket (1).

cardiagn.com
Fig. 391: Throttle Body Support
Courtesy of CHRYSLER GROUP, LLC
5. Install the throttle body support bracket (1).
6. Connect the electronic throttle control electrical connector.
7. Install the wiring harness retainer to the intake manifold (2).
8. Connect the MAP sensor electrical connector.
9. Connect the vacuum lines to the intake manifold.

Fig. 392: Oil Temperature Sensor

Courtesy of CHRYSLER GROUP, LLC
10. Connect the oil temperature sensor (1).
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11. Connect the variable valve timing solenoid electrical connector.

12. Connect the intake camshaft position sensor electrical connector.

cardiagn.com
Fig. 393: Ignition Coils, Air Hose, Fuel Line, Injectors & PCV Hose
Courtesy of CHRYSLER GROUP, LLC
13. Install the fuel rail assembly to intake manifold. Tighten bolts to 23 N.m
(200 in. lbs.).
14. Connect fuel injector electrical connectors (4).
15. Inspect quick connect fittings for damage, replace if necessary. Refer to
FITTING, QUICK CONNECT . Connect fuel supply hose (3) to fuel rail
assembly. Check connection by pulling on connector to insure it locked into
position.

Fig. 394: Air Cleaner Body, Air Inlet Tube & Make-Up Air Hose
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Courtesy of CHRYSLER GROUP, LLC

16. Push down on the air cleaner body (1) to engage the pins into the grommets.
17. Install the support bracket bolt to the strut tower and tighten to 10 N.m (89
in. lbs.).
18. Install the air inlet tube (2) to the air cleaner body (1).
19. Connect the make-up air hose (3) to the air cleaner body.

cardiagn.com
Fig. 395: Electrical Connectors, PCM, Three Mounting Bolts & Ground
Wire
Courtesy of CHRYSLER GROUP, LLC
20. Install the mounting bolt (3) with ground wire (1) and tighten to 12 N.m
(106 in. lbs.).
21. Connect and lock the electrical connectors (2).

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Fig. 396: Retainers, Fresh Air Inlet Duct & Air Cleaner Body
Courtesy of CHRYSLER GROUP, LLC

cardiagn.com
22. Connect the negative battery cable and tighten nut to 5 N.m (45 in. lbs.).
23. Install the fresh air inlet duct (3) on the air cleaner body (1) and lock the
retainers (2).

Fig. 397: Engine Cover - 2.4l

Courtesy of CHRYSLER GROUP, LLC
24. Install the engine cover (1).
VALVE TIMING
DESCRIPTION

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DESCRIPTION

cardiagn.com
Fig. 398: Timing Drive System
Courtesy of CHRYSLER GROUP, LLC
The timing drive system consists of the following:
Timing Chain (2)
Camshaft Sprockets (1, 3)
Crankshaft Sprocket
Right Timing Chain Guide (Moveable) (6)
Left Timing Chain Guide (Fixed) (4)
Timing Chain Tensioner (5)
The camshaft sprockets are attached to the cam phasers which are attached to the
front of the camshafts and are used with the timing chain and crankshaft sprocket
to turn the camshafts. The camshaft position sensors target is part of the
camshafts and is used with the camshaft position sensors to provide the PCM
with valvetrain position information.

The timing chain tensioner is installed in the right side of the engine block. Using
engine oil pressure, the tensioner applies constant pressure to the right side
(movable) timing chain guide, which in turn applies pressure to the timing chain.
Also as the tensioner extends, it rachet locks in position to provide constant
timing chain tension.
STANDARD PROCEDURE

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STANDARD PROCEDURE - VALVE TIMING VERIFICATION

CAUTION: Painted or colored chain links are used during

initial engine assembly and can not be relied upon
for valve timing verification. These markings are in
different locations for early production, late
production and service parts. Only use TDC marks,
cylinder head cover sealing surface and camshaft
sprocket marks to verify valve timing or engine
damage may result.

cardiagn.com
Fig. 399: Setting Engine To Top Dead Center
Courtesy of CHRYSLER GROUP, LLC
1. Remove engine cover.
2. Remove cylinder head cover. Refer to COVER(S), CYLINDER HEAD,
REMOVAL.
3. Set engine to TDC (1, 2).

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Fig. 400: Camshaft Timing

Courtesy of CHRYSLER GROUP, LLC

cardiagn.com
4. The marks on the camshaft sprockets (3) should be in line with the cylinder
head cover sealing surface.
5. Install cylinder head cover. Refer to COVER(S), CYLINDER HEAD,
INSTALLATION.
6. Install the engine cover.
CHAIN AND SPROCKETS, TIMING

REMOVAL

TIMING CHAIN

Fig. 401: Crankshaft Timing Marks

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Courtesy of CHRYSLER GROUP, LLC

1. Remove timing chain cover. Refer to COVER(S), ENGINE TIMING,
REMOVAL.

NOTE: The crankshaft timing mark (3) or (5) can be in one of

two locations depending on whether the engine is
early production (5), late production (3) or assembled
with service parts (3). In all cases the keyway (2) will
always be in the 9:00 position, in line with the ladder
frame mounting surface (1) when the engine is at
TDC.

2. Verify that the engine is still set to TDC.

cardiagn.com
NOTE: If the timing chain plated links can no longer be seen,
the timing chain links corresponding to the timing
marks must be marked prior to removal if the chain is
to be reused.

3. Mark chain link (4) corresponding to crankshaft timing mark (3) or (5).

Fig. 402: Timing Chain Timing Marks

Courtesy of CHRYSLER GROUP, LLC
4. With the engine still set to TDC, verify that the marks on the camshaft
sprockets (3) are in line with the cylinder head cover sealing surface (2). If

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the marks do not line up, the timing chain is not correctly installed.
5. Mark chain link (1) corresponding to camshaft timing mark.

cardiagn.com
Fig. 403: Timing Drive System
Courtesy of CHRYSLER GROUP, LLC
6. Remove timing chain tensioner (5). Refer to TENSIONER, ENGINE
TIMING, REMOVAL.
7. Remove timing chain (2).
CAMSHAFT SPROCKET(S)

NOTE: Camshaft phasers and camshaft sprockets are supplied

as an assembly, do not attempt to disassemble.

Refer to camshaft phaser removal. Refer to CAMSHAFT, ENGINE,

REMOVAL.
CRANKSHAFT SPROCKET

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Fig. 404: Crankshaft Sprocket

Courtesy of CHRYSLER GROUP, LLC

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1. Remove timing chain. Refer to CHAIN AND SPROCKETS, TIMING,
REMOVAL.
2. Remove oil pan. Refer to PAN, OIL, REMOVAL.
3. Remove oil pump drive chain tensioner.
4. Remove oil pump drive chain.
5. Remove crankshaft sprocket (1).
INSPECTION

INSPECTION

Fig. 405: Checking Timing Chain Stretch

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Courtesy of CHRYSLER GROUP, LLC

Inspect timing chain for stretching prior to removal.

1. Rotate engine while watching timing chain tensioner plunger. When the
plunger reaches its maximum travel stop rotating engine.
2. Measure the distance from the tensioner body and the edge of the chain
guide as shown in illustration.
3. If the distance is greater than 20.5 mm (0.81 in.) inspect guide shoes for
excessive wear.
4. If guides are okay, replace timing chain.
INSTALLATION

cardiagn.com
CRANKSHAFT SPROCKET

Fig. 406: Crankshaft Sprocket

Courtesy of CHRYSLER GROUP, LLC
1. Install crankshaft sprocket (1) onto crankshaft.

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Fig. 407: Oil Pump Drive Chain, Oil Pump Drive Chain Tensioner &

cardiagn.com
Timing Marks On Chain
Courtesy of CHRYSLER GROUP, LLC
2. Install oil pump drive chain. Verify that Oil pump is correctly timed (1, 2, 5,
6).

Fig. 408: Oil Pump Tensioner Reset

Courtesy of CHRYSLER GROUP, LLC
3. Reset oil pump drive chain tensioner by pushing plunger inward and install
tensioner pin (special tool #8514, Pins, Tensioner).

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Fig. 409: Oil Pump Drive Chain, Oil Pump Drive Chain Tensioner &

cardiagn.com
Timing Marks On Chain
Courtesy of CHRYSLER GROUP, LLC
4. Install oil pump drive chain tensioner (3) and remove Tensioner Pin (special
tool #8514, Pins, Tensioner) (4).
5. Install timing chain. Refer to CHAIN AND SPROCKETS, TIMING,
INSTALLATION.
6. Install oil pan. Refer to PAN, OIL, INSTALLATION.
7. Fill engine with oil. Refer to OIL - STANDARD PROCEDURE .
8. Start engine and check for leaks.
CAMSHAFT SPROCKET(S)

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Fig. 410: Removing/Installing Camshaft Phaser

Courtesy of CHRYSLER GROUP, LLC

NOTE: The camshaft sprockets and the camshaft phasers are an

assembly and cannot be serviced separately.

CAUTION: Do not use an impact wrench to tighten camshaft

sprocket bolts. Damage to the camshaft-to-
sprocket locating dowel pin and camshaft phaser
may occur.

1. Refer to Camshaft phaser (2) installation. Refer to CAMSHAFT, ENGINE,

INSTALLATION.

cardiagn.com
TIMING CHAIN

Fig. 411: Crankshaft Timing Marks

Courtesy of CHRYSLER GROUP, LLC

NOTE: The crankshaft timing mark (3) or (5) can be in one of two
locations depending on whether the engine is early
production (5), late production (3) or assembled with
service parts (3). In all cases the keyway (2) will always
be in the 9:00 position, in line with the ladder frame
mounting surface (1) when the engine is at TDC.

1. Verify that the engine is still set to TDC.

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Fig. 412: Timing Chain Timing Marks

Courtesy of CHRYSLER GROUP, LLC

cardiagn.com
2. Align camshaft timing marks (3) so they are facing each other and in line
with the cylinder head cover sealing surface (2).
3. Install timing chain so plated (or marked) links on chain align with timing
marks on camshaft sprockets (1).

Fig. 413: Crankshaft Timing Marks

Courtesy of CHRYSLER GROUP, LLC
4. Align timing mark on the crankshaft sprocket (3) or (5) with the plated (or
marked) link (4) on the timing chain. Position chain so slack will be on the
tensioner side.

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Fig. 414: Timing Drive System

Courtesy of CHRYSLER GROUP, LLC

cardiagn.com
NOTE: Keep the slack in the timing chain on the tensioner
side.

5. Install the timing chain tensioner (5) Refer to TENSIONER, ENGINE

TIMING, INSTALLATION.
Rotate the crankshaft CLOCKWISE two complete revolutions until the
crankshaft is repositioned at the TDC position with the key way at the 9
o'clock position.

Fig. 415: Camshaft Timing

Courtesy of CHRYSLER GROUP, LLC

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6. Verify that the camshafts timing marks (3) are in the proper position and in
line with the cylinder head cover sealing surface. If the marks do not line up,
the timing chain is not correctly installed.
7. Install front timing chain cover. Refer to COVER(S), ENGINE TIMING,
INSTALLATION.
8. Connect negative battery cable.
9. Operate engine until it reaches normal operating temperature. Check oil and
cooling systems for correct fluid levels.
COVER(S), ENGINE TIMING

REMOVAL

REMOVAL

Fig. 416: Engine Cover - 2.4L

Courtesy of CHRYSLER GROUP, LLC cardiagn.com
1. Remove engine cover (1) by pulling upward.
2. Perform fuel pressure bleed procedure. Refer to FUEL SYSTEM
PRESSURE RELEASE PROCEDURE .
3. Disconnect and isolate the negative battery cable.

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Fig. 417: Windshield Washer Reservoir, Power Steering Reservoir &

Coolant Reservoir

cardiagn.com
Courtesy of CHRYSLER GROUP, LLC
4. Remove coolant recovery bottle (3). Refer to BOTTLE, COOLANT
RECOVERY, REMOVAL .
5. Remove and reposition power steering reservoir (2).
6. Remove windshield washer bottle (1). Refer to RESERVOIR,
WINDSHIELD WASHER, REMOVAL .
7. Remove accessory drive belt. Refer to BELT, SERPENTINE,
REMOVAL .

Fig. 418: Removing/Installing Power Steering Hose Hold Down

Courtesy of CHRYSLER GROUP, LLC
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8. Remove power steering hose hold down (2).

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Fig. 419: Removing/Installing Power Steering Pump Mounting Bolts
Through Pulley Openings
Courtesy of CHRYSLER GROUP, LLC
9. Remove the three power steering pump mounting bolts (1) through the
openings in the pulley (3) and reposition the pump.

Fig. 420: Removing/Installing Cylinder Head Cover Bolts - Torque

Sequence
Courtesy of CHRYSLER GROUP, LLC
10. Remove the cylinder head cover. Refer to COVER(S), CYLINDER

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HEAD, REMOVAL.
11. Remove ignition coils from cylinder head cover.

cardiagn.com
Fig. 421: Setting Engine To Top Dead Center
Courtesy of CHRYSLER GROUP, LLC
12. Raise and support the vehicle. Refer to HOISTING, STANDARD
PROCEDURE .
13. Remove the right lower splash shield. Refer to SHIELD, SPLASH,
FRONT WHEELHOUSE, REMOVAL .
14. Set engine to TDC (1).

Fig. 422: A/C Compressor

Courtesy of CHRYSLER GROUP, LLC

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15. Remove lower A/C compressor bolts if equipped.

16. Remove lower A/C compressor mount (2) if equipped.

cardiagn.com
Fig. 423: Removing/Installing Accessory Drive Belt Upper & Lower
Idler Pulley
Courtesy of CHRYSLER GROUP, LLC
17. Remove accessory drive belt lower idler pulley (2).

Fig. 424: Right Side Engine Mount Bracket, Crankshaft Damper &
Water Pump Pulley
Courtesy of CHRYSLER GROUP, LLC

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18. Remove crankshaft damper (2). Refer to DAMPER, VIBRATION,

REMOVAL.
19. Remove three bolts and water pump pulley (4) from water pump.
20. Remove lower bolt from right side engine mount bracket (1).

cardiagn.com
Fig. 425: Timing Chain Cover Lower Bolts
Courtesy of CHRYSLER GROUP, LLC
21. Remove timing chain cover lower bolts (1).
22. Lower vehicle.
23. Support engine with suitable jack.

Fig. 426: Right Engine Mount Assembly

Courtesy of CHRYSLER GROUP, LLC

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24. Remove right engine mount through bolt (4).

25. Remove right engine mount to mount bracket bolts (3).
26. Remove right engine mount adapter (2).

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Fig. 427: Removing/Installing Accessory Drive Belt Upper & Lower
Idler Pulley
Courtesy of CHRYSLER GROUP, LLC
27. Remove accessory drive upper idler pulley (1).

Fig. 428: Right Side Engine Mount Bracket, Crankshaft Damper &
Water Pump Pulley
Courtesy of CHRYSLER GROUP, LLC

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28. Remove right upper engine mount bracket (1).

29. Remove accessory drive belt tensioner.
30. Remove timing chain cover retaining bolts.

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Fig. 429: Timing Chain Cover Pry Points
Courtesy of CHRYSLER GROUP, LLC
31. Remove timing chain cover using pry points (1, 2, 3).

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Fig. 430: Removing/Installing Timing Chain Cover

Courtesy of CHRYSLER GROUP, LLC

cardiagn.com
32. Remove timing chain cover (1) out through the bottom of the vehicle.
INSTALLATION

INSTALLATION

Fig. 431: Front Cover Upper T-Joints

Courtesy of CHRYSLER GROUP, LLC

NOTE: When using RTV, the sealing surfaces must be clean and
free from grease and oil.

NOTE: When using RTV, parts should be assembled in 10

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minutes and tighten to final torque within 45 minutes.

1. Clean all sealing surfaces. Refer to ENGINE GASKET SURFACE

PREPARATION .
2. Apply Mopar® engine sealant RTV (or equivalent) as shown in illustration
at the cylinder head to block parting line (1, 2).

cardiagn.com
Fig. 432: Lower T-Joints
Courtesy of CHRYSLER GROUP, LLC
3. Apply Mopar® engine sealant RTV (or equivalent) as shown in illustration
at the ladder frame to block parting line (1, 2).

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Fig. 433: Sealing Oil Pan

Courtesy of CHRYSLER GROUP, LLC
4. Apply Mopar® engine sealant RTV (or equivalent) as shown in illustration
in the corner of the oil pan and block.
5. Apply 2 mm bead of Mopar® engine sealant RTV (or equivalent) to the oil
pan as shown in illustration.

cardiagn.com
Fig. 434: Timing Chain Cover Sealing
Courtesy of CHRYSLER GROUP, LLC
6. Apply 2 mm bead of Mopar® engine sealant RTV (or equivalent) to the
engine block (1, 2) as shown in illustration.

Fig. 435: Removing/Installing Timing Chain Cover

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Courtesy of CHRYSLER GROUP, LLC

7. Install timing chain cover (1) upwards from under the vehicle.
8. Install timing chain cover upper retaining bolts and tighten M6 bolts to 9
N.m (80 in. lbs.) and M8 bolts to 26 N.m (230 in. lbs.).
9. Install accessory drive belt tensioner. Tighten bolt to 24 N.m (212 in. lbs.).

cardiagn.com
Fig. 436: Right Side Engine Mount Bracket, Crankshaft Damper &
Water Pump Pulley
Courtesy of CHRYSLER GROUP, LLC
10. Install right engine mount bracket (1). Tighten bolts to 50 N.m (37 ft. lbs.).

Fig. 437: Removing/Installing Accessory Drive Belt Upper & Lower

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Idler Pulley
Courtesy of CHRYSLER GROUP, LLC
11. Install accessory drive belt upper idler pulley (1). Tighten bolt to 48 N.m (35
ft. lbs.).

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Fig. 438: Right Engine Mount Assembly
Courtesy of CHRYSLER GROUP, LLC
12. Install engine mount adapter (2) and tighten bolts (3) to 68 N.m (50 ft. lbs.).
13. Install engine mount through bolt (4) and tighten to 88 N.m (65 ft. lbs.).
14. Remove jack from under engine.

Fig. 439: Timing Chain Cover Lower Bolts

Courtesy of CHRYSLER GROUP, LLC

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15. Raise and support the vehicle. Refer to HOISTING, STANDARD

PROCEDURE .
16. Install oil pan to timing chain cover lower retaining bolts (1) and tighten M6
bolts to 9 N.m (80 in. lbs.).

cardiagn.com
Fig. 440: Right Side Engine Mount Bracket, Crankshaft Damper &
Water Pump Pulley
Courtesy of CHRYSLER GROUP, LLC
17. Install water pump pulley (4) and tighten three bolts to 9 N.m (80 in. lbs.).
18. Install crankshaft damper (2) Refer to DAMPER, VIBRATION,
INSTALLATION.

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Fig. 441: Removing/Installing Accessory Drive Belt Upper & Lower

Idler Pulley
Courtesy of CHRYSLER GROUP, LLC
19. Install accessory drive belt lower idler pulley (2). Tighten bolt to 48 N.m (35
ft. lbs.).

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Fig. 442: A/C Compressor
Courtesy of CHRYSLER GROUP, LLC
20. Install lower A/C compressor mounting bracket (2). Tighten the bolts to 24
N.m (18 ft. lbs.).
21. Install A/C compressor (1). Tighten the bolts to 25 N.m (18 ft. lbs.).
22. Install right lower splash shield. Refer to SHIELD, SPLASH, FRONT
WHEELHOUSE, INSTALLATION .
23. Lower vehicle.

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Fig. 443: Remove/Install Cylinder Head Cover Bolts In Sequence

Courtesy of CHRYSLER GROUP, LLC

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24. Install cylinder head cover and ignition coils. Refer to COVER(S),
CYLINDER HEAD, INSTALLATION.

Fig. 444: Removing/Installing Power Steering Pump Mounting Bolts

Through Pulley Openings
Courtesy of CHRYSLER GROUP, LLC
25. Place the power steering pump in mounting position. Install the three bolts
(1) through openings in the pulley (3). Tighten the mounting bolts (1) to 26
N.m (19 ft. lbs.).

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Fig. 445: Removing/Installing Power Steering Hose Hold Down

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Courtesy of CHRYSLER GROUP, LLC
26. Install the power steering hose hold down (2).
27. Install accessory drive belt. Refer to BELT, SERPENTINE,
INSTALLATION .

Fig. 446: Windshield Washer Reservoir, Power Steering Reservoir &

Coolant Reservoir
Courtesy of CHRYSLER GROUP, LLC
28. Install power steering pump reservoir (2). Tighten mounting screw to 12
N.m (106 in. lbs.).
29. Install windshield washer reservoir (1).

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30. Install coolant recovery reservoir (3). Tighten mounting bolts to 4 N.m (35
in. lbs.).

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Fig. 447: Air Cleaner Housing, Fasteners, Battery, Intake Air
Temperature Sensor & Clean Air Tube
Courtesy of CHRYSLER GROUP, LLC
31. Install clean air hose (5) and air cleaner housing (1). Refer to BODY, AIR
CLEANER, INSTALLATION.
32. Install air cleaner housing inlet.
33. Connect negative battery cable.

Fig. 448: Engine Cover - 2.4L

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2014 ENGINE 2.4L - Service Information - Compass & Patriot

Courtesy of CHRYSLER GROUP, LLC

34. Operate engine until it reaches normal operating temperature. Check oil
system for leaks and correct fluid level.
35. Install engine cover (1).
TENSIONER, ENGINE TIMING

REMOVAL

REMOVAL

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Fig. 449: Timing Drive System
Courtesy of CHRYSLER GROUP, LLC
1. Remove the engine timing cover. Refer to COVER(S), ENGINE TIMING,
REMOVAL.

NOTE: Tensioner will not come apart during removal.

2. Remove timing chain tensioner retaining bolts and remove tensioner (5).
INSTALLATION

INSTALLATION

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Fig. 450: Tensioner Reset
Courtesy of CHRYSLER GROUP, LLC
1. Reset timing chain tensioner (4) by lifting up on ratchet (2) and pushing
plunger (3) inward towards the tensioner body (4). Insert Tensioner Pin
(special tool #8514, Pins, Tensioner) into slot (1) to hold tensioner plunger
in the retracted position.

Fig. 451: Timing Chain Tensioner

Courtesy of CHRYSLER GROUP, LLC

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NOTE: Keep the slack in the timing chain on the tensioner

side.

2. Install timing chain tensioner (1) and tighten bolts to 12 N.m (105 in. lbs.).
3. Remove timing Tensioner Pin (special tool #8514, Pins, Tensioner) (2).
4. Install the engine timing cover Refer to COVER(S), ENGINE TIMING,
INSTALLATION.

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