Front Servo

Special Tools:

Removal
1. Disconnect the battery ground cable.
2. Raise and support vehicle.





3. Remove the shift cable.
1. Disconnect the shift cable from the manual control lever.
2. Remove the shift cable from the bracket.
4. Remove the digital transmission range (TR) sensor.
5. Remove the main control valve body.
6. Remove the three way catalytic converter (TWC).





7. Remove the transmission servo heat shield.
1. Remove the transmission servo heat shield nut.
2. Remove the transmission servo heat shield.





8. Remove the front band locknut and unscrew the front band adjusting screw.
- Discard the front band locknut after removal.





9. CAUTION: Servo cover is under spring pressure.

Using Servo Cover Compressor, remove the front band servo cover retaining ring.
1. Install the Servo Cover Compressor and compress the front band servo cover.
2. Remove the front servo cover retaining ring.
- Slowly remove tension on the J-hook nut and remove the servo cover compressor.





10. CAUTION: Servo removal tool should be used to prevent damage to servo and bore.

Use Servo Removal Tool to remove the front band servo cover, servo piston and servo piston spring.
- Insert Servo Removal Tool into the transmission case, locate on servo rod, and remove front band servo cover, servo piston and servo piston spring.


Installation





1. Assemble the front band servo cover, front band servo piston, and the servo piston spring.
1. Install the front band servo piston into the front band servo cover.
2. Install the servo piston spring on the front band servo piston.





2. CAUTION: Do not damage O-ring during installation. Do not press servo cover and O-ring past relief hole in case, or O-ring damage may occur.

Install the front band servo assembly into the transmission case.
- Lubricate the front band servo cover O-ring with petroleum jelly.





3. Use Servo Cover Compressor to install the front band servo cover retaining ring.
1. Install the Servo Cover Compressor and compress the front band servo cover.
2. Install the front servo cover retaining ring.
4. Install the main control valve body.
5. Adjust the front band.





6. Position the transmission servo heat shield on the transmission and install the nut.
7. Install the three way catalytic converter.





8. Install the shift cable.
1. Install the shift cable.
2. Install the shift cable to the manual control lever.

9. Install the digital transmission range (TR) sensor.
10. Lower the vehicle.
11. Connect the battery ground cable.
12. Fill the transmission to the proper fluid level and check for proper transmission operation.
- Use MERCON V Automatic Transmission Fluid XT-5-QM or equivalent meeting MERCON V specification.