Fuel System: Section
Fuel System: Section
SECTION
FUEL SYSTEM
FL FL
E
CONTENTS
APPLICATION NOTICE 2WD : Removal and Installation ..............................17 F
2WD : Inspection .....................................................19
HOW TO USE THIS MANUAL ...................... 3
AWD ...........................................................................19
G
APPLICATION NOTICE ...................................... 3 AWD : Exploded View .............................................19
How to Check Vehicle Type ...................................... 3 AWD : Removal and Installation ..............................20
TYPE 1 AWD : Inspection .....................................................22
H
PRECAUTION ............................................... 4 SERVICE DATA AND SPECIFICATIONS
(SDS) ............................................................ 23
PRECAUTIONS ................................................... 4 I
General Precautions ................................................. 4 SERVICE DATA AND SPECIFICATIONS
(SDS) ................................................................. 23
PREPARATION ............................................ 5 Fuel Tank .................................................................23
J
PREPARATION ................................................... 5 TYPE 2
Special Service Tool ................................................. 5 PRECAUTION .............................................. 24
K
PERIODIC MAINTENANCE .......................... 6 PRECAUTIONS ................................................. 24
FUEL SYSTEM .................................................... 6 General Precautions ................................................24
Inspection .................................................................. 6 PREPARATION ........................................... 25 L
Quick Connector ....................................................... 6
PREPARATION ................................................. 25
REMOVAL AND INSTALLATION ................ 7 Commercial Service Tools .......................................25 M
FUEL LEVEL SENSOR UNIT, FUEL FILTER PERIODIC MAINTENANCE ........................ 26
AND FUEL PUMP ASSEMBLY .......................... 7
FUEL SYSTEM .................................................. 26 N
2WD ............................................................................. 7
Inspection ................................................................26
2WD : Exploded View ............................................... 7
Quick Connector ......................................................26
2WD : Removal and Installation ................................ 7
2WD : Inspection ..................................................... 10 O
REMOVAL AND INSTALLATION ............... 27
AWD ........................................................................... 10 FUEL LEVEL SENSOR UNIT, FUEL FILTER
AWD : Exploded View ............................................. 11 AND FUEL PUMP ASSEMBLY ........................ 27 P
AWD : Removal and Installation ............................. 11
Exploded View .........................................................27
AWD : Inspection .................................................... 16
Removal and Installation .........................................27
FUEL TANK ........................................................17 Inspection ................................................................34
PRECAUTION
PRECAUTIONS
General Precautions INFOID:0000000005254108
WARNING:
When replacing fuel line parts, be sure to observe the following.
• Put a “CAUTION: FLAMMABLE” sign in the workshop.
• Be sure to work in a well ventilated area and furnish workshop with a CO2 fire extinguisher.
• Never smoke while servicing fuel system. Keep open flames and sparks away from the work area.
CAUTION:
• Use gasoline required by the regulations for octane number. Refer to GI-29, "FUEL : Fuel".
• Before removing fuel line parts, perform out the following procedures:
- Put drained fuel in an explosion-proof container and put the lid on securely. Keep the container in
safe area.
- Release fuel pressure from the fuel lines. Refer to EC-499, "Inspection" (for California) or EC-942,
"Inspection" (Except for California).
- Disconnect the battery cable from the negative terminal.
• Always replace O-ring and clamps with new ones.
• Never bend or twist tubes when they are being installed.
• Never tighten hose clamps excessively to avoid damaging hoses.
• After installing tubes, check that there is no fuel leakage at connections in the following steps.
- Apply fuel pressure to fuel lines with turning ignition switch “ON” (with engine stopped). Then check
for fuel leakage at connections.
- Start engine and rev it up and check for fuel leakage at connections.
• Use only a genuine NISSAN fuel filler cap as a replacement. If an incorrect fuel filler cap is used, the
“MIL” may come on.
• For servicing “Evaporative Emission System” parts. Refer to EC-73, "System Diagram" (for Califor-
nia) or EC-560, "System Diagram" (Except for California).
PREPARATION A
PREPARATION
Special Service Tool INFOID:0000000005254109
FL
The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
Tool number
(Kent-Moore No.) Description C
Tool name
KV991J0090 Removing and Installing lock ring
(J-46214) D
Lock ring wrench
LBIA0353E
PERIODIC MAINTENANCE
FUEL SYSTEM
Inspection INFOID:0000000005254110
Inspect fuel lines, fuel filler cap and, fuel tank for improper attach-
ment, leakage, cracks, damage, loose connections, chafing or dete-
rioration.
A : Engine
B : Fuel line
C : Fuel tank
If necessary, repair or replace damaged parts.
JPBIA0129ZZ
CAUTION:
• After connecting fuel tube quick connectors, check that quick connectors are secure.
• Ensure that connector and resin tube never contact any adjacent parts.
J
JPBIA1230GB
REMOVAL N
WARNING:
Be sure to read “General Precautions” before working on the fuel system. Refer to FL-4, "General Pre-
cautions".
O
1. Check fuel level on fuel gauge. If fuel gauge indicates more than
the level as shown in the figure (full or almost full), drain fuel
from fuel tank until fuel gauge indicates level as shown in the fig-
ure or below. P
NOTE:
Because fuel spills when removing fuel level sensor unit, fuel fil-
ter and fuel pump assembly for the top of the fuel is above the
installation surface of fuel level sensor unit.
• As a guide, fuel level becomes the position as shown in the
figure or below when approximately 15 (4 US gal, 3-1/4 Imp
gal) of fuel are drained from fuel tank. JPBIA0925ZZ
: Vehicle front
JPBIA1266ZZ
A : Pull
B : Push in tabs
• If quick connector sticks to tube of main fuel level sensor unit,
push and pull quick connectors several times until they start to
move. Then disconnect them by pulling.
JPBIA0134ZZ
CAUTION:
B : Connection (cross-section)
FL
D : To under floor fuel line
E : To fuel tank
G : Disconnection
C
• Never use any tools to disconnected quick connector.
• Keep resin tube (C) away from heat. Be especially care-
ful when welding near the resin tube.
D
• Prevent acid liquid such as battery electrolyte, etc. from
getting on resin tube.
• Never bend or twist resin tube during installation and
disconnection. E
• Never remove the remaining retainer (2) on hard tube (or
the equivalent) (A) except when resin tube or retainer is
replaced. F
• When resin tube or hard tube (or the equivalent) is
replaced, also replace retainer with new one.
JPBIA0135ZZ
K
8. Use lock ring wrench [SST: KV991J0090 (J-46214)] (A) to
remove lock ring.
L
: Vehicle front
NOTE:
For reference when installing, put a matching mark on lock ring, M
fuel pump assembly and fuel tank.
N
JPBIA1267ZZ
9. Raise fuel level sensor unit, fuel filter and fuel pump assembly O
(1), and disconnect fuel tube and harness connector.
CAUTION:
• Never bend float arm during removal.
P
• Never pollute the inside by residue fuel. Draw out avoid-
ing inclination by supporting with a cloth.
• Never cause impacts such by dropping when handling
components.
PBIC3780E
INSTALLATION
Note the following, and install in the reverse order of removal.
Fuel Level Sensor Unit, Fuel Filter and Fuel Pump Assembly
1. Install O-ring to fuel tank without any twist.
2. Align (A) with vehicle front as shown in the figure. Install fuel
level sensor unit (1) to fuel tank.
: Vehicle front
lowing procedures.
• Visually confirm that the two tabs are connected to the connector.
• Pull (A) the tube and the connector to check that they are
securely connected.
JPBIA0140ZZ
FL
JPBIA1231GB
I
Fuel level sensor unit, fuel filter and fuel pump
1. Lock ring 2. 3. O-ring
assembly
4. Sub fuel level sensor assembly J
A. Right side B. Left side
: Vehicle front
Refer to GI-4, "Components" for symbols in the figure. K
CAUTION:
Never remove or disassemble parts unless instructed as shown in the figure.
L
AWD : Removal and Installation INFOID:0000000005254116
REMOVAL M
WARNING:
Be sure to read “General Precautions” before working on the fuel system. Refer to FL-4, "General Pre-
cautions". N
Fuel Level Sensor Unit, Fuel Filter And Fuel Pump Assembly
1. Check fuel level on fuel gauge. If fuel gauge indicates more than
the level as shown in the figure (full or almost full), drain fuel O
from fuel tank until fuel gauge indicates level as shown in the fig-
ure or below.
NOTE: P
Because fuel spills when removing fuel level sensor unit, fuel fil-
ter and fuel pump assembly for the top of the fuel is above the
installation surface of fuel level sensor unit.
• As a guide, fuel level becomes the position as shown in the
figure or below when approximately 15 (4 US-gal, 3-1/4 Imp
gal) of fuel are drained from fuel tank. JPBIA0925ZZ
• In case fuel pump does not operate, perform the following pro-
cedure.
: Vehicle front
JPBIA1266ZZ
A : Pull
B : Push in tabs
• If quick connector sticks to tube of main fuel level sensor unit,
push and pull quick connectors several times until they start to
move. Then disconnect them by pulling.
JPBIA0134ZZ
CAUTION:
B : Connection (cross-section)
FL
D : To under floor fuel line
E : To fuel tank
G : Disconnection
C
• Never use any tools to disconnected quick connector.
• Keep resin tube (C) away from heat. Be especially care-
ful when welding near the resin tube.
D
• Prevent acid liquid such as battery electrolyte, etc. from
getting on resin tube.
• Never bend or twist resin tube during installation and
disconnection. E
• Never remove the remaining retainer (2) on hard tube (or
the equivalent) (A) except when resin tube or retainer is
replaced. F
• When resin tube or hard tube (or the equivalent) is
replaced, also replace retainer with new one.
JPBIA0135ZZ
K
8. Use lock ring wrench [SST: KV991J0090 (J-46214)] (A) to
remove lock ring.
NOTE: L
For reference when installing, put a matching mark on lock ring,
fuel pump assembly and fuel tank.
M
N
JPBIA1267ZZ
9. Raise fuel level sensor unit, fuel filter and fuel pump assembly O
(1), and disconnect fuel tube and harness connector.
CAUTION:
• Never bend float arm during removal.
P
• Never pollute the inside by residue fuel. Draw out avoid-
ing inclination by supporting with a cloth.
• Never cause impacts such by dropping when handling
components.
PBIC3780E
JSBIA0147ZZ
JPBIA1267ZZ
FL
F
JSBIA0166ZZ
3. Align (A) with vehicle front as shown in the figure. Install fuel
level sensor unit (1) to fuel tank. G
: Vehicle front
NOTE: H
Figure shows fuel level sensor unit, fuel filter and fuel pump
assembly side of fuel tank.
I
JPBIA1268ZZ
Quick Connector J
Connect quick connector of fuel feed tube as per following procedures.
1. Check the connection for damage or any foreign materials.
2. Align the connector with the tube, then insert the connector straight into the tube until a “click” sound is K
heard.
3. After connecting, check that the connection is secured with following procedures.
• Visually confirm that the two tabs are connected to the connector. L
• Pull (A) the tube and the connector to check that they are
securely connected.
M
O
JPBIA0140ZZ
JPBIA1232GB
K
1. Fuel filler cap 2. Grommet 3. Fuel filler tube
4. Cover 5. Clamp 6. Fuel filler hose
L
7. Clamp 8. Vent hose 9. Protector
10. Fuel tank band (LH) 11. Fuel tank band (RH) 12. Fuel tank
A. To EVAP canister
M
Refer to GI-4, "Components" for symbols in the figure.
N
REMOVAL
WARNING:
Be sure to read “General Precautions” when working on the fuel system. Refer to FL-4, "General Pre- O
cautions".
1. Perform the steps 2 to 7 of “REMOVAL” in “ FUEL LEVEL SENSOR UNIT, FUEL FILTER AND FUEL
PUMP ASSEMBLY”. Refer to FL-7, "2WD : Removal and Installation". P
2. Drain fuel from fuel tank if necessary. Refer to FL-7, "2WD : Removal and Installation".
CAUTION:
• Because fuel tank forwardly inclines and becomes unstable when installing/removing, fuel
should be drained if found the remaining quantity.
• Situate vehicle on a flat and solid surface.
3. Remove muffler assembly. Refer to EX-5, "Exploded View".
: Vehicle front
JPBIA1269ZZ
10. Support center of fuel tank (1) with transmission jack (A).
CAUTION:
Securely support the fuel tank with a piece of wood (B).
PBIC3792E
INSTALLATION
Note the following, and install in the reverse order of removal.
Fuel Filler Hose
• Insert fuel filler hose to the length below.
: 35 mm (1.38 in)
• Be sure hose clamp is not placed on swelled area of fuel filler tube.
• Tighten the clamp hand with the top mark (A) until the mark is on
the bolt head flange.
JPBIA0146ZZ
EVAP Hose
1. Check connections for damage or foreign material.
2. Align the matching side connection part with the center of shaft, and insert connector straight until it clicks.
A : Pull
FL
JPBIA0140ZZ
D
2WD : Inspection INFOID:0000000005254120
JPBIA1233GB
REMOVAL
WARNING:
Be sure to read “General Precautions” when working on the fuel system. Refer to FL-4, "General Pre-
cautions".
1. Perform the steps 2 to 7 of “REMOVAL” in “ FUEL LEVEL SENSOR UNIT, FUEL FILTER AND FUEL
PUMP ASSEMBLY”. Refer to FL-11, "AWD : Removal and Installation".
2. Drain fuel from fuel tank if necessary. Refer to FL-11, "AWD : Removal and Installation".
CAUTION:
• Because fuel tank forwardly inclines and becomes unstable when installing/removing, fuel
should be drained if found the remaining quantity.
• Situate vehicle on a flat and solid surface.
3. Remove muffler assembly. Refer to EX-5, "Exploded View".
4. Remove propeller shaft. Refer to DLN-87, "Exploded View".
5. Remove protector from fuel tank.
6. Remove vent hose (1) at rear side of fuel tank.
: Vehicle front
JPBIA1269ZZ
: Vehicle front
CAUTION: FL
Never remove final drive mounting nut.
13. Remove final drive mounting bolts (B) from final drive mounting
bracket (3) to tilt final drive assembly (2). Refer to DLN-105, C
"Exploded View".
NOTE:
Final drive assembly does not have to be removed from the D
vehicle.
G
JPBIA0802ZZ
14. Support center of fuel tank (1) with transmission jack (A). H
CAUTION:
Securely support the fuel tank with a piece of wood (B).
PBIC3792E
K
INSTALLATION
Note the following, and install in the reverse order of removal.
N
Fuel Filler Hose
• Insert fuel filler hose to the length below.
O
: 35 mm (1.38 in)
• Be sure hose clamp is not placed on swelled area of fuel filler tube.
P
JPBIA0146ZZ
EVAP Hose
1. Check connections for damage or foreign material.
2. Align the matching side connection part with the center of shaft, and insert connector straight until it clicks.
3. After connecting, pull out quick connector and centralized under-
floor piping by hand. Check connections are secure.
A : Pull
JPBIA0140ZZ
PRECAUTION
PRECAUTIONS
General Precautions INFOID:0000000005254125
WARNING:
When replacing fuel line parts, be sure to observe the following.
• Put a “CAUTION: FLAMMABLE” sign in the workshop.
• Be sure to work in a well ventilated area and furnish workshop with a CO2 fire extinguisher.
• Never smoke while servicing fuel system. Keep open flames and sparks away from the work area.
CAUTION:
• Use gasoline required by the regulations for octane number. Refer to GI-29, "FUEL : Fuel".
• Before removing fuel line parts, perform out the following procedures:
- Put drained fuel in an explosion-proof container and put the lid on securely. Keep the container in
safe area.
- Release fuel pressure from the fuel lines. Refer to EC-1289, "Inspection".
- Disconnect the battery cable from the negative terminal.
• Always replace O-ring and clamps with new ones.
• Never bend or twist tubes when they are being installed.
• Never tighten hose clamps excessively to avoid damaging hoses.
• After installing tubes, check that there is no fuel leakage at connections in the following steps.
- Apply fuel pressure to fuel lines with turning ignition switch “ON” (with engine stopped). Then check
for fuel leakage at connections.
- Start engine and rev it up and check for fuel leakage at connections.
• Use only a genuine NISSAN fuel filler cap as a replacement. If an incorrect fuel filler cap is used, the
“MIL” may come on.
• For servicing “Evaporative Emission System” parts. Refer to EC-998, "System Diagram".
PREPARATION A
PREPARATION
Commercial Service Tools INFOID:0000000005254126
FL
E
ZZA0122D
PERIODIC MAINTENANCE
FUEL SYSTEM
Inspection INFOID:0000000005254127
Inspect fuel lines, fuel filler cap, and fuel tank for improper attach-
ment, leakage, cracks, damage, loose connections, chafing or dete-
rioration.
A : Engine
B : Fuel line
C : Fuel tank
If necessary, repair or replace damaged parts.
JPBIA0129ZZ
CAUTION:
• After connecting fuel tube quick connectors, check that quick connectors are secure.
• Ensure that connector and resin tube never contact any adjacent parts.
JSBIA0144ZZ J
CAUTION:
Never remove or disassemble parts unless instructed as shown in the figure. M
Removal and Installation INFOID:0000000005254130
N
REMOVAL
WARNING:
Be sure to read “General Precautions” before working on the fuel system. Refer to FL-24, "General
Precautions". O
Fuel Level Sensor Unit, Fuel Filter and Fuel Pump Assembly
P
: Vehicle front
JPBIA0457ZZ
A : Pull
B : Push in tabs
• If quick connector sticks to tube of main fuel level sensor unit,
push and pull quick connectors several times until they start to
move. Then disconnect them by pulling.
CAUTION:
JPBIA0134ZZ
B : Connection (cross-section)
FL
D : To under floor fuel line
E : To fuel tank
G : Disconnection
C
• Never use any tools to disconnected quick connector.
• Keep resin tube (C) away from heat. Be especially care-
ful when welding near the resin tube.
D
• Prevent acid liquid such as battery electrolyte, etc. from
getting on resin tube.
• Never bend or twist resin tube during installation and
disconnection. E
• Never remove the remaining retainer (2) on hard tube (or
the equivalent) (A) except when resin tube or retainer is
replaced. F
• When resin tube or hard tube (or the equivalent) is
replaced, also replace retainer with new one.
JPBIA0135ZZ
K
8. Use lock ring wrench (commercial service tool) to remove lock
ring.
L
N
PBIC0240E
9. Raise fuel level sensor unit, fuel filter and fuel pump assembly O
(1), and disconnect fuel tube and harness connector.
CAUTION:
• Never bend float arm during removal.
P
• Never pollute the inside by residue fuel. Draw out avoid-
ing inclination by supporting with a cloth.
• Never cause impacts such by dropping when handling
components.
PBIC3780E
JSBIA0147ZZ
PBIC0240E
FL
F
JSBIA0166ZZ
3. Install sub fuel level sensor assembly with its matching mark (A)
aligned with fuel tank matching mark (B) as shown in the figure. G
: Vehicle front
NOTE: H
• Figure shows fuel level sensor unit, fuel filter and fuel pump
assembly side of fuel tank.
• For sub fuel level sensor assembly matching mark is located I
on the fuel tank of the vehicle front side.
JPBIA0951ZZ
J
4. Use lock ring wrench (commercial service tool) to remove lock
ring as per the following steps.
K
M
PBIC0240E
a. Align the “ ” mark located on the rim of the lock ring (1) with the N
“START” position of the fuel tank. Press the locking ring horizon-
tally to prevent the lock ring from tilting.
NOTE:
O
• Figure shows fuel level sensor unit, fuel filter and fuel pump
assembly side of fuel tank.
• For sub fuel level sensor assembly matching mark is located
on the fuel tank of the vehicle front side. P
b. After aligning the “ ” mark with “START” slightly turn the lock
ring counterclockwise and realign the “ ” mark with “START” to
engage the lock ring with the fuel tank screw. JSBIA0152ZZ
JSBIA0145ZZ
d. Check that the “ ” mark of the lock ring (1) is between MIN and
MAX [i.e. within (A)].
NOTE:
• Figure shows fuel level sensor unit, fuel filter and fuel pump
assembly side of fuel tank.
• For sub fuel level sensor assembly matching mark is located
on the fuel tank of the vehicle front side.
JSBIA0146ZZ
Fuel Level Sensor Unit, Fuel Filter and Fuel Pump Assembly
1. Temporarily install the O-ring to the fuel level sensor unit fuel filter and fuel pump assembly.
2. Connect the fuel tube as per the following steps.
• Insert the quick connector (A) straight to the fuel level sensor
unit fuel filter and fuel pump assembly.
• Judge a good fit from connecting sound and tactile feedback.
• Pull the fuel tube by hand to check a secure fit.
3. Connect harness connector (B).
JSBIA0147ZZ
4. Insert the fuel level sensor unit fuel filter and fuel pump assembly to the fuel tank, and then install the tem-
porarily installed O-ring (Step 1) to the opening of the fuel tank.
CAUTION:
• Never bend float arm during installation.
FL
F
JSBIA0166ZZ
5. Install fuel level sensor unit fuel filter and fuel pump assembly
with its matching mark (A) aligned with fuel tank matching mark G
(B) as shown in the figure.
: Vehicle front
H
JPBIA0951ZZ
J
6. Use lock ring wrench (commercial service tool) to remove lock
ring as per the following steps.
M
PBIC0240E
a. Align the “ ” mark located on the rim of the lock ring (1) with the N
“START” position of the fuel tank. Press the locking ring horizon-
tally to prevent the lock ring from tilting.
b. After aligning the “ ” mark with “START” slightly turn the lock O
ring counterclockwise and realign the “ ” mark with “START” to
engage the lock ring with the fuel tank screw.
P
JSBIA0152ZZ
JSBIA0145ZZ
d. Check that the “ ” mark of the lock ring (1) is between MIN and
MAX [i.e. within (A)].
JSBIA0146ZZ
JPBIA0140ZZ
FL
J
JPBIA2648GB
REMOVAL N
WARNING:
Be sure to read “General Precautions” when working on the fuel system. Refer to FL-24, "General Pre-
cautions". O
1. Perform the steps 2 to 7 of “REMOVAL” in “ FUEL LEVEL SENSOR UNIT, FUEL FILTER AND FUEL
PUMP ASSEMBLY”. Refer to FL-27, "Removal and Installation".
2. Drain fuel from fuel tank if necessary. Refer to FL-27, "Removal and Installation". P
CAUTION:
• Because fuel tank forwardly inclines and becomes unstable when installing/removing, fuel
should be drained if found the remaining quantity.
• Situate vehicle on a flat and solid surface.
3. Remove main muffler. Refer to EX-5, "Exploded View".
4. Remove propeller shaft. Refer to DLN-87, "Exploded View" (AWD models).
5. Remove protector from fuel tank.
: Vehicle front
JPBIA0456ZZ
: Vehicle front
CAUTION:
Never remove final drive mounting nut.
13. Remove final drive mounting bolts (B) from final drive mounting
bracket (3) to tilt final drive assembly (2). Refer to DLN-105,
"Exploded View" (AWD models).
NOTE:
Final drive assembly does not have to be removed from the
vehicle.
JPBIA0802ZZ
14. Support center of fuel tank (1) with transmission jack (A).
CAUTION:
Securely support the fuel tank with a piece of wood (B).
PBIC3792E
INSTALLATION
A
Note the following, and install in the reverse order of removal.
Fuel Filler Hose
• Insert fuel filler hose to the length below. FL
: 35 mm (1.38 in)
• Be sure hose clamp is not placed on swelled area of fuel filler tube. C
• Tighten fuel filler hose clamp so that the remaining length of screw thread becomes to the following.
A : Pull
G
JPBIA0140ZZ
I
Inspection INFOID:0000000005254134