GM Service Manual Online
For 1990-2009 cars only

Tools Required

    • J 45059 Torque Angle Meter
    • J 37096 Flywheel Holder

Removal Procedure


    Object Number: 309963  Size: SH
  1. Remove the transaxle. Refer to Transmission Replacement in Automatic Transaxle - 4T65-E.
  2. Use the J 37096 to prevent the flywheel from rotating.

  3. Object Number: 153602  Size: SH
  4. Loosen the 8 engine flywheel bolts.
  5. Remove 7 of the 8 engine flywheel bolts, leaving 1 bolt at the top of the crankshaft rotation.
  6. Firmly grasp the engine flywheel and remove the remaining bolt. Do not drop the engine flywheel when removing the final bolt.
  7. Remove the engine flywheel.

Installation Procedure


    Object Number: 153602  Size: SH
  1. Install the engine flywheel.
  2. Use the J 37096 to prevent the flywheel from rotating.
  3. Notice: Refer to Fastener Notice in the Preface section.

  4. Install the new engine flywheel bolts.
  5. Tighten

    1. Tighten the bolts to 15 N·m (11 lb ft).
    2. Use theJ 45059 to rotate the bolts an additional 50 degrees.

    Important: The crankshaft end play must be held in one direction during this check.

  6. Use the following procedure to measure engine flywheel runout:
  7. 4.1. Install a dial indicator on the engine block and check the engine flywheel runout at three attaching bosses. Refer to Engine Mechanical Specifications .
    4.2. If the runout is not within the specification and cannot be corrected, replace the engine flywheel.
  8. Install the transaxle. Refer to Transmission Replacement in Automatic Transaxle - 4T65E.