GM Service Manual Online
For 1990-2009 cars only

Tools Required

J 42386-A Flywheel Holding Tool

Removal Procedure


    Object Number: 71469  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 and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  3. Remove the catalytic converter assembly. Refer to Catalytic Converter Replacement in Engine Exhaust.
  4. Remove the starter motor. Refer to Starter Motor Replacement in Engine Electrical.
  5. Using a flat bladed screwdriver, remove the access plug from the driveline support assembly.

  6. Object Number: 71465  Size: SH
  7. Matchmark the transmission flexplate to the transmission torque converter through the access hole.
  8. It may be helpful to have an assistant for the remaining steps.

  9. Turn the engine flywheel through the starter motor opening until one of the flexplate to torque converter bolts lines up with the access hole.

  10. Object Number: 156162  Size: SH
  11. Install the J 42386-A to the engine flywheel, in order to keep the flywheel from turning.

  12. Object Number: 71434  Size: SH
  13. Remove the flexplate to torque converter bolt.
  14. Remove the J 42386-A .
  15. Repeat steps 7 through 10 to remove the 2 remaining bolts.

Installation Procedure


    Object Number: 173654  Size: SH
  1. Using a flat bladed screwdriver, remove the transmission torque converter access plug.

  2. Object Number: 71435  Size: SH
  3. Align one of the torque converter bolt holes with the driveline support assembly access hole, if necessary.
  4. Carefully rotate the torque converter, working through the access holes in the rear bellhousing and the transmission housing.


    Object Number: 71465  Size: SH
  5. Align one of the flexplate bolt holes with the driveline support assembly access hole, if necessary.
  6. 3.1. Remove the J 42386-A from the engine flywheel.
    3.2. Slowly turn the engine flywheel through the starter motor opening until the desired flexplate bolt hole lines up with the torque converter bolt hole.
    3.3. Install the J 42386-A to the engine flywheel, in order to keep the flywheel from turning.

    Object Number: 71434  Size: SH

    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.

    Important: HAND-START the flexplate to torque converter bolts before torquing to ensure proper alignment and to avoid cross threading.

    Important: Carefully WALK the transmission torque converter to the transmission flywheel through the torque converter access plug opening, if necessary. DO NOT use the bolts to draw the torque converter to the flexplate.

  7. Install the flexplate to torque converter bolt through the driveline support assembly access hole.
  8. HAND-TIGHTEN until FINGER-TIGHT, then torque to specification.

    Tighten
    Tighten the flexplate to torque converter bolt to 63 N·m (47 lb ft).


    Object Number: 71465  Size: SH
  9. Remove the J 42386-A from the engine flywheel.
  10. Turn the engine flywheel slowly until the next bolt holes line up with the rear bellhousing access hole.
  11. Install the J 42386-A to the engine flywheel, in order to keep the flywheel from turning.
  12. Repeat steps 4 through 7 to install the 2 remaining bolts.

  13. Object Number: 156162  Size: SH
  14. Remove the J 42386-A from the engine flywheel.

  15. Object Number: 173654  Size: SH
  16. Install the torque converter access plug.

  17. Object Number: 71469  Size: SH
  18. Install the driveline support assembly access plug.
  19. Install the starter motor. Refer to Starter Motor Replacement in Engine Electrical.
  20. Remove the catalytic converter assembly. Refer to Catalytic Converter Replacement in Engine Exhaust.
  21. Lower the vehicle.
  22. Connect the negative battery cable.
  23. Tighten
    Tighten the negative battery cable bolt to 15 N·m (11 lb ft).

  24. Program the transmitters.
  25. Run the engine and inspect for the presence of vibration, repair if necessary. Refer to Flexplate/Torque Converter Vibration Test .