GM Service Manual Online
For 1990-2009 cars only

Tools Required

J 37096 Flywheel Holder

Removal Procedure


    Object Number: 160965  Size: SH
  1. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.
  2. Remove the air cleaner intake duct. Refer to Air Cleaner Inlet Duct Replacement in Engine Controls - 3.1L or Air Cleaner Inlet Duct Replacement in Engine Controls - 3.8L.
  3. Remove the engine mount strut brackets from the upper radiator support. Refer to Engine Mount Strut Bracket Replacement - Upper Radiator Support in Engine Mechanical - 3.1L or Engine Mount Strut Bracket Replacement - Upper Radiator Support in Engine Mechanical - 3.8L.
  4. Install the engine support fixture. Refer to Engine Support Fixture in Engine Mechanical - 3.1L or Engine Support Fixture in Engine Mechanical - 3.8L.
  5. Disconnect the electrical wiring harness connectors from the transaxle and the PNP switch.
  6. Remove the automatic transaxle range selector cable from the PNP switch and the automatic transaxle range selector cable bracket. Refer to Range Selector Lever Cable Replacement .
  7. Remove the ground wire nuts and the ground wires from the studs.
  8. Remove the upper transaxle bolts (3,4,5) and the stud (2).
  9. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  10. Drain the transaxle fluid.
  11. Remove the frame from the vehicle. Refer to Frame Replacement in Frame and Underbody.
  12. Important: Ensure the transmission jack is properly secured to the transaxle.

  13. Position a transmission jack under the transaxle and secure the transmission jack to the transaxle.

  14. Object Number: 161126  Size: SH
  15. Remove the transaxle fluid filler tube bolt.
  16. Remove the transaxle fluid filler fill tube.

  17. Object Number: 289471  Size: SH
  18. Remove the torque converter cover bolts.
  19. Remove the torque converter covers.
  20. Remove the starter motor. Refer to Starter Motor Replacement in Engine Electrical.

  21. Object Number: 160984  Size: SH
  22. Install the J 37096 to the flywheel and remove the torque converter bolts.
  23. Remove the transaxle oil cooler pipes from the transaxle. Refer to Transmission Fluid Cooler Hose/Pipe Replacement .
  24. Remove the drive axles from the transaxle. Refer to Wheel Drive Shaft Replacement in Wheel Drive Shafts.
  25. Secure the drive axles to the steering knuckle and the struts.
  26. Disconnect the vehicle speed sensor electrical connector.
  27. Remove the transaxle brace. Refer to Transmission Brace Replacement .

  28. Object Number: 160965  Size: SH
  29. Remove the lower transaxle bolt (6) and the stud (1).
  30. Using the transmission jack lower and remove the transaxle from the vehicle.
  31. Remove the PNP switch. Refer to Park/Neutral Position Switch Replacement .
  32. Remove the Transaxle mount. Refer to Transmission Mount Replacement .
  33. If the transaxle is being disassembled and inspected Refer to Transmission Overhaul in Automatic Transaxle - 4T65-E Unit Repair.
  34. Flush the transmission cooler and lines. Refer to Transmission Fluid Cooler Flushing and Flow Test .

Installation Procedure


    Object Number: 160965  Size: SH
  1. Install the Transaxle mount. Refer to Transmission Mount Replacement .
  2. Install the PNP switch. Refer to Park/Neutral Position Switch Replacement .
  3. Important: Ensure the transaxle is secured properly to the transmission jack.

  4. Install the transaxle to the transmission jack
  5. Use the transmission jack to raise and install the transaxle to the engine.
  6. Notice: Refer to Fastener Notice in the Preface section.

  7. Install the lower transaxle bolt (6) and the stud (1).
  8. Tighten
    Tighten the bolt and the stud to 75 N·m (55 lb ft).

  9. Install the transaxle brace. Refer to Transmission Brace Replacement .
  10. Connect the vehicle speed sensor electrical connector.
  11. Remove the drive axles from the steering knuckle and the struts.
  12. Install the drive axles to the transaxle. Refer to Wheel Drive Shaft Replacement in Drive Axle.
  13. Install the transaxle oil cooler pipes to the transaxle. Refer to Transmission Fluid Cooler Hose/Pipe Replacement .

  14. Object Number: 160984  Size: SH
  15. Install the J 37096 to the flywheel and install the torque converter bolts.
  16. Tighten
    Tighten the bolts to 63 N·m (46 lb ft).

  17. Install the starter motor. Refer to Starter Motor Replacement in Engine Electrical.

  18. Object Number: 289471  Size: SH
  19. Install the torque converter covers.
  20. Install the torque converter cover bolts.
  21. Tighten
    Tighten the bolts to 10 N·m (89 lb in).


    Object Number: 161126  Size: SH
  22. Install the transaxle fluid filler tube.
  23. Install the transaxle fluid filler tube bolt.
  24. Tighten
    Tighten the bolt to 13 N·m (115 lb in).

  25. Remove the transmission jack from the transaxle
  26. Install the frame to the vehicle. Refer to Frame Replacement in Frame and Underbody.
  27. Lower the vehicle.

  28. Object Number: 160965  Size: SH
  29. Install the upper transaxle bolts (3,4,5) and the stud (2).
  30. Tighten
    Tighten the bolts and the stud to 75 N·m (55 lb ft).

  31. Install the engine wire ground wires and the nuts to the studs.
  32. Tighten
    Tighten the nuts to 25 N·m (18 lb ft).

  33. Install the automatic transaxle range selector cable bracket and the automatic transaxle range selector cable to the transaxle. Refer to Range Selector Lever Cable Replacement .
  34. Connect the electrical wiring harness connectors to the transaxle and the PNP switch.
  35. Remove the engine support fixture.
  36. Install the engine mount strut brackets to the upper radiator support. Refer to Engine Mount Strut Bracket Replacement - Upper Radiator Support in Engine Mechanical - 3.1L or Engine Mount Strut Bracket Replacement - Upper Radiator Support in Engine Mechanical - 3.8L.
  37. Install the air cleaner intake duct. Refer to Air Cleaner Inlet Duct Replacement in Engine Controls - 3.1L or Air Cleaner Inlet Duct Replacement in Engine Controls - 3.8L.
  38. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.
  39. Notice: Do NOT overfill the transaxle. The overfilling of the transaxle causes foaming, loss of fluid, shift complaints, and possible damage to the transaxle.

  40. Adjust the fluid level.
  41. Inspect for fluid leaks.
  42. 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.

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