Band Apply Servo: Service and Repair

2-4 Servo

^ Tools Required
- J 29714-A Servo Cover Depressor

Removal Procedure
1. Raise the vehicle. Refer to Vehicle Lifting.
2. Support the transmission with a suitable jack.
3. Remove the transmission support.
4. Remove the exhaust manifold pipe.
5. Place a drain pan under the vehicle.
6. Lower the transmission just enough to gain access to the oil cooler lines.
7. Disconnect the oil cooler lines, if necessary, to gain access to the 2-4 servo.
8. Remove the oil pan bolt below and to the left of the 2-4 servo cover.
9. Install the J 29714-A to the oil pan rail.





10. Tighten the bolt on the J 29714-A in order to compress the servo cover.





11. Remove the servo cover retaining ring.
12. Loosen the bolt on the J 29714-A to release tension on the servo cover.





13. Remove the servo cover and O-ring seal. If the cover is hung up on the seal, use a pick (2) to pull and stretch the seal (1) out of the groove. Cut and remove the O-ring seal before removing the cover.





14. Remove the 2-4 servo assembly from the transmission.
15. Inspect the 4th apply piston, the 2-4 servo converter, 2nd apply piston, and the piston inner housing for these defects:
^ Cracks
^ Scoring
^ Burrs and nicks

Installation Procedure





1. Install the new seals on the pistons and the servo cover.
2. Lubricate the seals with clean transmission fluid.
3. Install the 2-4 servo assembly into the 2-4 servo bore.
4. Install the servo cover and O-ring seal.
5. Install the J 29714-A.





6. Tighten the bolt on the J 29714-A in order to compress the servo cover.
7. Install the servo cover retaining ring.
8. Remove the J 29714-A from the oil pan flange.

Notice: Refer to Fastener Notice in Service Precautions.

9. Install the oil pan bolt.
^ Tighten the oil pan bolt to 11 Nm (97 lb in).
10. Connect the oil cooler lines to the transmission, if removed.
11. Raise the transmission into place.
12. Remove the drain pan from under the vehicle.
13. Install the exhaust manifold pipe.
14. Install the transmission support.
15. Remove the transmission jack.
16. Lower the vehicle.
17. Fill the transmission to the proper level with DEXRON III transmission fluid.