GM Service Manual Online
For 1990-2009 cars only

Tools Required

    • J 28467-A Engine Support Fixture
    • J 28467-90 Engine Support Adapter
    • J 36462 Support Adapter Leg Set

Removal Procedure

  1. Install the J 28467-A .
  2. Install the J 28467-90 .
  3. Install the J 36462 .
  4. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  5. Remove the power steering gear and hang from the exhaust pipe. Refer to Steering Gear Replacement in Power Steering System.
  6. Remove the transaxle mount lower bolts. Refer to Transmission Mount Replacement .
  7. Remove the engine mount lower bolts. Refer to Engine Mount and Bracket Replacement in Engine Mechanical 3.4L. or Engine Mount and Bracket Replacement in Engine Mechanical 3.8L.
  8. Remove the power steering cooler pipe from the right side of the frame. Refer to Power Steering Cooler Pipe/Hose Replacement in Power Steering Systems
  9. Support the rear of the frame.
  10. Loosen the frame bolts. Refer to Frame Removal in Frame and Underbody.
  11. Adjust the jackstand to lower the rear of the frame.
  12. Position a drain pan under the forward servo cover.

  13. Object Number: 164777  Size: SH
  14. Remove the bolts attaching the servo cover to the transaxle case.
  15. Remove the forward servo cover.
  16. Remove the forward servo cover O-ring.
  17. Remove the servo piston assembly.
  18. Remove the servo spring.

Installation Procedure


    Object Number: 164777  Size: SH
  1. Install the servo spring.
  2. Install the servo piston assembly.
  3. Install the forward servo cover O-ring.
  4. Install the forward servo cover.
  5. Notice: Refer to Fastener Notice in the Preface section.

  6. Install the forward servo cover attaching bolts.
  7. Tighten
    Tighten the forward servo cover attaching bolts to 12 N·m (106 lb in).

  8. Remove the drain pan from under the forward servo cover.
  9. Raise the rear of the frame.
  10. Install the frame bolts. Refer to Frame Removal in Frame and Underbody.
  11. Remove the support from the rear of the frame.
  12. Install the power steering cooler pipe to the right side of the frame. Refer to Power Steering Cooler Pipe/Hose Replacement in Power Steering Systems
  13. Install the engine mount lower bolts. Refer to Engine Mount and Bracket Replacement in Engine Mechanical 3.4L. or Engine Mount and Bracket Replacement in Engine Mechanical 3.8L.
  14. Install the transaxle mount lower bolts. Refer to Transmission Mount Replacement .
  15. Install the power steering gear. Refer to Steering Gear Replacement in Power Steering Systems.
  16. Lower the vehicle.
  17. Remove the J 36462 .
  18. Remove the J 28467-90 .
  19. Remove the J 28467-A .
  20. Refill the transmission with transmission fluid. Refer to Transmission Fluid Check .
  21. Inspect the transmission for leaks. Refer to Fluid Leak Diagnosis .
  22. Important: It is recommended that transmission adaptive pressure (TAP) information be reset.

    Resetting the TAP values using a scan tool will erase all learned values in all cells. As a result, The ECM, PCM or TCM will need to relearn TAP values. Transmission performance may be affected as new TAP values are learned.

  23. Reset the TAP values. Refer to Adapt Function .