GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

Tools Required

J 21366 Converter Holding Strap


    Object Number: 178875  Size: SH

    Caution: Unless directed otherwise, the ignition and start switch must be in the OFF or LOCK position, and all electrical loads must be OFF before servicing any electrical component. Disconnect the negative battery cable to prevent an electrical spark should a tool or equipment come in contact with an exposed electrical terminal. Failure to follow these precautions may result in personal injury and/or damage to the vehicle or its components.

  1. Disconnect the negative battery cable.
  2. Raise the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  3. Drain the transmission fluid. Refer to Automatic Transmission Fluid and Filter Replacement .
  4. Remove the shift cable from the transmission shift lever. Refer to Shift Cable Replacement .
  5. Disconnect the electrical connectors (1,2) from each other.
  6. Remove the propeller shaft. Refer to Two-Piece Propeller Shaft Replacement or Three-Piece Propeller Shaft Replacement .
  7. Remove the park brake assembly. Refer to Backing Plate Replacement in Parking Brake.
  8. Support the transmission with a transmission jack.

  9. Object Number: 178874  Size: SH
  10. Remove the rear transmission mount to crossmember nut and washer.
  11. Remove the transmission crossmember and the bolts.

  12. Object Number: 178886  Size: SH
  13. Remove the oil level indicator tube from the transmission.

  14. Object Number: 178873  Size: SH
  15. Remove the transmission vent hose from the transmission. Refer to Transmission Vent Hose Replacement .
  16. Disconnect the transmission cooler lines. Refer to Oil Cooler Hose/Pipe Replacement .
  17. Remove the front exhaust pipe from the vehicle. Refer to Exhaust Pipe Replacement in Engine Exhaust.

  18. Object Number: 102335  Size: SH
  19. Remove the converter housing cover from the transmission.

  20. Object Number: 102211  Size: SH
  21. Mark the flywheel and the torque converter for installation alignment.
  22. Remove the bolts that connect the flywheel to the torque converter.

    Important: Support the engine with a jack or a hoist before disconnecting the transmission from the engine.

  23. Remove the bolts that secure the engine to the transmission.
  24. Slide the transmission straight back from the locating pins and install the J 21366 in order to prevent the converter from falling out of the bell housing.
  25. Remove the transmission from the vehicle.

Installation Procedure


    Object Number: 102211  Size: SH
  1. Install the transmission to the engine by using the following procedure:
  2. • The torque converter must be seated properly and the J 21366 must be in place.
    • Support the transmission with a transmission jack.
    • Raise the transmission into place. Remove the J 21366 .
    • Slide the transmission straight onto the locating pins while lining up the marks on the flywheel and the torque converter.

    Important: The torque converter must be flush onto the flywheel and rotate freely by hand.

    Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

  3. Install the bolts that secure the transmission to the engine.
  4. Tighten
    Tighten the bolts and the studs to 50 N·m (37 lb ft).

  5. Install the bolts that secure the flywheel to the torque converter.
  6. Tighten to finger tight to insure proper converter seating.

    Tighten
    Tighten the bolts to 55 N·m (41 lb ft).


    Object Number: 102335  Size: SH
  7. Install the converter housing cover.
  8. Install the bolts for the converter housing cover.
  9. Tighten
    Tighten the cover bolts to 33 N·m (24 lb ft).

  10. Connect the transmission cooler lines. Refer to Oil Cooler Hose/Pipe Replacement .
  11. Install the front exhaust pipe to the vehicle. Refer to Exhaust Pipe Replacement in Engine Exhaust.

  12. Object Number: 178875  Size: SH
  13. Connect the electrical connectors (1,2) to each other.

  14. Object Number: 178886  Size: SH
  15. Install the oil level indicator tube.

  16. Object Number: 178874  Size: SH
  17. Install the transmission mount.
  18. Tighten
    Tighten the transmission mount bolts to 44 N·m (33 lb ft).

  19. Install the transmission crossmember and the bolts.
  20. Tighten
    Tighten the crossmember to frame bolts to 77 N·m (56 lb ft).

  21. Remove the transmission jack.
  22. Install the transmission mount to transmission crossmember washer and nut.
  23. Tighten
    Tighten the nut to 44 N·m (33 lb ft).

  24. Install the park brake assembly. Refer to Backing Plate Replacement in Parking Brake.
  25. Install the propeller shaft. Refer to Two-Piece Propeller Shaft Replacement or Three-Piece Propeller Shaft Replacement .
  26. Install the shift cable. Refer to Shift Cable Replacement .
  27. Lower the vehicle.
  28. Check the transmission fluid level. Refer to Fluid Capacity Specifications .
  29. Connect the negative battery cable.