GM Service Manual Online
For 1990-2009 cars only

Transmission Replacement All Wheel Drive

Removal Procedure

  1. Remove the air cleaner assembly. Refer to Air Cleaner Assembly Replacement.

  2. Object Number: 1831034  Size: SH
  3. Remove the wire harness retainer (2) from the control valve body cover stud.
  4. Disconnect the control valve body transmission control module (TCM) electrical connector (1).

  5. Object Number: 2001149  Size: SH
  6. Disconnect the transmission range selector lever cable terminal (3) from the transmission manual shift lever (4).
  7. Press the locking tabs inward in order to release the transmission range selector lever cable (1) from the cable bracket (2).

  8. Object Number: 1831036  Size: SH
  9. Release the transmission fluid cooler inlet pipe retainer from the transmission control valve body cover.
  10. Remove the transmission fluid cooler inlet pipe nut (2).
  11. Remove the transmission fluid cooler inlet pipe (1) and seal from the transmission.
  12. Remove the oil cooler outlet pipe retainer nut (5) and retainer from the transmission control valve body cover.
  13. Remove the transmission fluid cooler outlet pipe nut (3).
  14. Remove the transmission fluid cooler outlet pipe (4) and seal from the transmission.
  15. Plug and/or cap both fluid cooler pipes and transmission to prevent contamination.

  16. Object Number: 1831026  Size: SH
  17. Remove the upper transmission to engine bolts (1, 2).
  18. Install the engine support fixture. Refer to Engine Support Fixture.
  19. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle.
  20. Remove the frame. Refer to Front Frame Replacement.
  21. Disconnect the left wheel drive shaft from the transmission. Refer to Front Wheel Drive Shaft Replacement.

  22. Object Number: 1831027  Size: SH
  23. Remove the transfer case. Refer to Transfer Case Assembly Replacement.
  24. Remove the left transmission mount bracket from the transmission. Refer to Transmission Mount Bracket Replacement - Left Side.

  25. Object Number: 1852420  Size: SH
  26. Remove the starter. Refer to Starter Motor Replacement.
  27. Mark the relationship of the flywheel to the torque converter for reassembly.
  28. Remove the 4 torque converter to flywheel bolts (1).
  29. Use a transmission jack in order to support the transmission.

  30. Object Number: 1831024  Size: SH
  31. Remove the remaining transmission bolts (2-4).
  32. Separate the transmission from the engine.
  33. Lower the transmission with the transmission jack far enough to remove the transmission.

Installation Procedure

  1. Raise the transmission with the transmission jack and position the transmission to the engine.
  2. Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 1831024  Size: SH
  3. Install the transmission bolts (2-4).
  4. Tighten
    Tighten the bolt to 75 N·m (55 lb ft).

  5. Remove the transmission jack.

  6. Object Number: 1852420  Size: SH
  7. Install the 4 torque converter to flywheel bolts (1).
  8. Tighten
    Tighten the bolts to 62 N·m (46 lb ft).

  9. Install the starter. Refer to Starter Motor Replacement.
  10. Install the left transmission mount bracket to the transmission. Refer to Transmission Mount Bracket Replacement - Left Side.

  11. Object Number: 1831027  Size: SH
  12. Install the transfer case. Refer to Transfer Case Assembly Replacement.
  13. Install the left wheel drive shaft to the transmission. Refer to Front Wheel Drive Shaft Replacement.
  14. Install the frame. Refer to Front Frame Replacement.
  15. Lower the vehicle.
  16. Remove the engine support fixture.

  17. Object Number: 1831026  Size: SH
  18. Install the upper transmission to engine bolt (1, 2).
  19. Tighten
    Tighten the bolt to 75 N·m (55 lb ft).


    Object Number: 1831036  Size: SH
  20. Install the transmission fluid cooler outlet pipe (4) and seal to the transmission.
  21. Install the transmission fluid cooler outlet pipe nut (3).
  22. Tighten
    Tighten the nut to 22 N·m (16 lb ft).

  23. Install the oil cooler outlet pipe retainer and nut (5) to the transmission control valve body cover.
  24. Tighten
    Tighten the nut to 12 N·m (106 lb in).

  25. Install the transmission fluid cooler inlet pipe (1) and seal to the transmission.
  26. Install the transmission fluid cooler inlet pipe nut (2).
  27. Tighten
    Tighten the nut to 22 N·m (16 lb ft).

  28. Install the transmission fluid cooler inlet pipe retainer to the transmission control valve body cover.

  29. Object Number: 2001149  Size: SH
  30. Install the transmission range selector lever cable (1) to the cable bracket (2).
  31. Connect the transmission range selector lever cable terminal (3) to the transmission manual shift lever (4).

  32. Object Number: 1831034  Size: SH
  33. Connect the control valve body TCM electrical connector (1).
  34. Install the wire harness retainer (2) to the control valve body cover stud.
  35. Tighten
    Tighten the nut to 12 N·m (106 lb in).

  36. Adjust the automatic transmission range selector lever cable. Refer to Range Selector Lever Cable Adjustment.
  37. Verify the proper fluid level of the transmission. Refer to Transmission Fluid Check.
  38. Install the air cleaner assembly. Refer to Air Cleaner Assembly Replacement.
  39. For transmission control module programming and setup, refer to Control Module References.
  40. Important: After an internal transmission repair or internal part replacement the service fast learn adapt procedure should be performed.

  41. Perform the service fast learn adapt procedure. Refer to Service Fast Learn Adapts.
  42. Road test the vehicle.

Transmission Replacement Front Wheel Drive

Removal Procedure

  1. Remove the air cleaner assembly. Refer to Air Cleaner Assembly Replacement.

  2. Object Number: 1831034  Size: SH
  3. Remove the wire harness retainer (2) from the control valve body cover stud.
  4. Disconnect the control valve body transmission control module (TCM) electrical connector (1).

  5. Object Number: 2001149  Size: SH
  6. Disconnect the transmission range selector lever cable terminal (3) from the transmission manual shift lever (4).
  7. Press the locking tabs inward in order to release the transmission range selector lever cable (1) from the cable bracket (2).

  8. Object Number: 1831036  Size: SH
  9. Release the transmission fluid cooler inlet pipe retainer from the transmission control valve body cover.
  10. Remove the transmission fluid cooler inlet pipe nut (2).
  11. Remove the transmission fluid cooler inlet pipe (1) and seal from the transmission.
  12. Remove the oil cooler outlet pipe retainer nut (5) and retainer from the transmission control valve body cover.
  13. Remove the transmission fluid cooler outlet pipe nut (3).
  14. Remove the transmission fluid cooler outlet pipe (4) and seal from the transmission.
  15. Plug and/or cap both fluid cooler pipes and transmission to prevent contamination.

  16. Object Number: 1831026  Size: SH
  17. Remove the upper transmission to engine bolts (1, 2).
  18. Install the engine support fixture. Refer to Engine Support Fixture.
  19. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle.
  20. Remove the frame. Refer to Front Frame Replacement.
  21. Disconnect the left wheel drive shaft from the transmission. Refer to Front Wheel Drive Shaft Replacement.
  22. Remove the intermediate drive shaft. Refer to Intermediate Drive Shaft Replacement.

  23. Object Number: 1831023  Size: SH
  24. Remove the transmission brace bolts.
  25. Remove the transmission brace.
  26. Remove the left transmission mount bracket from the transmission. Refer to Transmission Mount Bracket Replacement - Left Side.

  27. Object Number: 1852420  Size: SH
  28. Remove the starter. Refer to Starter Motor Replacement.
  29. Mark the relationship of the flywheel to the torque converter for reassembly.
  30. Remove the 4 torque converter to flywheel bolts (1).
  31. Use a transmission jack in order to support the transmission.

  32. Object Number: 1831024  Size: SH
  33. Remove the flywheel inspection cover bolts (2, 3).
  34. Remove the flywheel inspection cover (1).
  35. Remove the remaining transmission bolts (4).
  36. Separate the transmission from the engine.
  37. Lower the transmission with the transmission jack far enough to remove the transmission.

Installation Procedure

  1. Raise the transmission with the transmission jack and position the transmission to the engine.
  2. Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 1831024  Size: SH
  3. Install the transmission bolts (4).
  4. Tighten
    Tighten the bolt to 75 N·m (55 lb ft).

  5. Install the flywheel inspection cover (1).
  6. Install the flywheel inspection cover bolts (2, 3).
  7. Tighten
    Tighten the bolt to 75 N·m (55 lb ft).

  8. Remove the transmission jack.

  9. Object Number: 1852420  Size: SH
  10. Install the 4 torque converter to flywheel bolts (1).
  11. Tighten
    Tighten the bolts to 62 N·m (46 lb ft).

  12. Install the starter. Refer to Starter Motor Replacement.
  13. Install the left transmission mount bracket to the transmission. Refer to Transmission Mount Bracket Replacement - Left Side.

  14. Object Number: 1831023  Size: SH
  15. Install the transmission brace.
  16. Install the transmission brace bolts.
  17. Tighten
    Tighten the bolt/stud to 50 N·m (37 lb ft).

  18. Install the intermediate drive shaft. Refer to Intermediate Drive Shaft Replacement.
  19. Install the left wheel drive shaft to the transmission. Refer to Front Wheel Drive Shaft Replacement.
  20. Install the frame. Refer to Front Frame Replacement.
  21. Lower the vehicle.
  22. Remove the engine support fixture.

  23. Object Number: 1831026  Size: SH
  24. Install the upper transmission to engine bolt (1, 2).
  25. Tighten
    Tighten the bolt to 75 N·m (55 lb ft).


    Object Number: 1831036  Size: SH
  26. Install the transmission fluid cooler outlet pipe (4) and seal to the transmission.
  27. Install the transmission fluid cooler outlet pipe nut (3).
  28. Tighten
    Tighten the nut to 22 N·m (16 lb ft).

  29. Install the oil cooler outlet pipe retainer and nut (5) to the transmission control valve body cover.
  30. Tighten
    Tighten the nut to 12 N·m (106 lb in).

  31. Install the transmission fluid cooler inlet pipe (1) and seal to the transmission.
  32. Install the transmission fluid cooler inlet pipe nut (2).
  33. Tighten
    Tighten the nut to 22 N·m (16 lb ft).

  34. Install the transmission fluid cooler inlet pipe retainer to the transmission control valve body cover.

  35. Object Number: 2001149  Size: SH
  36. Install the transmission range selector lever cable (1) to the cable bracket (2).
  37. Connect the transmission range selector lever cable terminal (3) to the transmission manual shift lever (4).

  38. Object Number: 1831034  Size: SH
  39. Connect the control valve body TCM electrical connector (1).
  40. Install the wire harness retainer (2) to the control valve body cover stud.
  41. Tighten
    Tighten the nut to 12 N·m (106 lb in).

  42. Adjust the automatic transmission range selector lever cable. Refer to Range Selector Lever Cable Adjustment.
  43. Verify the proper fluid level of the transmission. Refer to Transmission Fluid Check.
  44. Install the air cleaner assembly. Refer to Air Cleaner Assembly Replacement.
  45. For transmission control module programming and setup, refer to Control Module References.
  46. Important: After an internal transmission repair or internal part replacement the service fast learn adapt procedure should be performed.

  47. Perform the service fast learn adapt procedure. Refer to Service Fast Learn Adapts.
  48. Road test the vehicle.