SK® A6MF Note: This product requires

Prevents/Corrects/Reduces TransGo # A4A6-RV-TK Tool kit to Repair

Brutal 6-4 Kick-down bang, erratic shifting complaints Reducing Regulators
flares/neutrals on shifts, gear ratio and/or solenoid
performance codes.

Fits: Hyundai/Kia: A6MF1/2, A6GF1, A6LF1/2/3 A4A6-RV-TK Tool works on two different
Dodge Dart: 6F24 2016 PATRIOT 4X4 Transmission Families
A4CF 4-Speeds & A6MF 6-Speeds

Step 1. Disassemble Valve body and remove Reducing Valve #2 assembly from the Middle Body.
Save the retainer, adjuster & spring for re-use. Discard original valve. You will be doing the same
work for Reducing Valve #1 in the Solenoid Body. Make sure Adjustment Plugs & Springs Return to
the same bore they came from.
Middle Body

Step 2. Insert the reamer guide into reducing valve bore #2 in the middle
Body as shown. Use a 9/16 open end wrench on the flats of the reamer
guide to keep the guide from rotating. Insert the reamer into the guide.
Using lots of WD-40 and low speed on your favorite portable drill, let the
reamer do the cutting until it bottoms in the bore.
Don’t force the reamer. Remove the tools and clean the body.

Tip: Have an old parts washer? Get 5 gals of WD-40 (approx $100 bucks) and Reamer guide
you’ll have the perfect wet tank to keep the VB bore and reamer cool while you
ream aluminum valve bodies. Flushes chips out as you go.

Re-use Reducing #2

Discard
3/21/19 Page 1 © TransGo 2017
Step 1 Reducing Valve #2 Measurement & Adjustment Measurement Calculation
Do Not Skip This Step!
Measure stock adjustment: This is the gap between outside edge Original Gap= _________
of spring seat and inside face of end plug. Add + .040"
Write it down in the space provided.
Now add .040. The result will be the new adjustment gap. New Gap= _________
Example: If original gap was .250", by adding .040" it would make
the New Gap .290". To adjust, hold the spring seat stationary (or
insert in VB) and turn adjustment bolt until gap measures .290".
This step is necessary to work with the new larger valve.

Measure Original Gap first!

(We have seen them between .240-.300")
Adjustment Bolt
Spring Seat

TCC Control Re-use

End Plug Valve Re-use

Re-use Re-use New TCC

Control Bushing
Step 2. With the middle body clean, oil the
new reducing valve provided. Check for free
movement and then install it along with the Step 3. Discard Original TCC Control bushing, In-
original spring, adjuster and retainer. stall new bushing provided. Make SURE to remove
the inner valve from the old bushing and re-use it.

Re-use Install New

Reducing Valve

Re-use
Re-use

3/21/19 Page 2 © TransGo 2017

 Solenoid Body

Step 1. Remove Reducing Valve #1 assembly from the Solenoid body. Discard original valve. Save
spring, end plug & retainer. Using the same reamer, guide & method from page 1 Reducing Valve #2
Ream bore for reducing valve # 1 shown below. Don’t forget step 2 Reducing Valve Adjustment.

Step 3. Install the new reducing valve provided.

Checking for free movement, use the original
spring, adjuster and retainer.

Re-use
Re-use
Discard Re-use

Reducing #1 Install New

Reducing Valve Re-use

Step 2. Reducing Valve #1 Measurement & Adjustment Measurement Calculation

Do Not Skip This Step!
Measure stock adjustment: This is the gap between outside edge of Original Gap= _________
spring seat and inside face of end plug. Add + .040"
Write it down in the space provided.
Now add .040. The result will be the new adjustment gap. New Gap= _________
Example: If original gap was .250", by adding .040" it would make the
Measure Original Gap first!
New Gap .290". To adjust, hold the spring seat stationary (or insert in
VB) and turn adjustment bolt until gap measures .290". (We have seen them between .240-.300")
This step is necessary to work with the new larger valve.
Adjustment Bolt
Spring Seat

3/21/19 Page 3 End Plug © TransGo 2017

This is a typical parts layout of a A6MF1 Valve body. Your Valve Body model may be different!
Always mark the location of each of the small parts and return them to their original locations!
Due to the variety of models and applications, expect differences and use care disassembling .

Page 4 © TransGo 2017

This is a typical parts layout of a A6MF1 Valve body. Your Valve Body model may be different!
Always mark the location of each of the small parts and return them to their original locations!
Due to the variety of models and applications, expect differences and use care disassembling.

Page 5 © TransGo 2017

 This is a typical parts layout of a A6MF1 Valve body. Your Valve Body model may be different!
Always mark the location of each of the small parts and return them to their original locations!
Due to the variety of models and applications, expect differences and use care disassembling.

Plate
Screw

Plate
Screw

Z
Z Holes use Two 15/64 or (Letter A) drills to align VB halves,
before tightening bolts that hold the VB together. Page 6 © TransGo 2017