Band Apply Servo: Service and Repair

CAUTION: Servicing the 2/4 band servo in the vehicle is only recommended in the event of a leak. If servicing is required due to a servo problem, it is necessary to remove and disassemble the transaxle to inspect the 2/4 band assembly and direct clutch for damage.

ON-VEHICLE REMOVAL
1. Raise and support the vehicle.
2. Remove the splash shield.

WARNING: The servo cover is under high spring pressure.





3. Install a nut with an integral washer onto the forcing bolt of the servo cover remover/replacer tool with a permanent thread sealer. This nut and washer will aid in the installation of the cover.





4. Install the Special Service Tool (SST) and compress the servo cover assembly.
5. Remove the servo cover retaining ring and release the tension on the servo cover assembly slowly.
6. After releasing all of the tension on the servo cover assembly, remove the SST.
7. Remove the servo cover assembly, 2/4 servo piston and return spring.

INSPECTION
Inspect the 2/4 servo piston and servo cover assembly for nicks or cuts and replace if necessary.

ON-VEHICLE INSTALLATION
1. Lubricate the 2/4 servo piston, servo cover, servo cover seal, and servo case bore using ATF or petroleum jelly to aid in the installation and prevent cutting of the seal.
2. Install the 2/4 servo piston and return spring into the transaxle case.
3. Install the SST.
4. Tighten the center screw to compress the 2/4 servo into the bore.

NOTE: If the cover will not seat deep enough in the bore to install the servo cover retaining ring, a blunt punch may be used with a small hammer. Gently tap the cover around the outer edge with the punch until the snap ring groove is fully exposed.

5. Install the servo cover retaining ring into transaxle case.
6. Remove the SST.
7. Lower the vehicle. Check the fluid level prior to road testing.