GM Service Manual Online
For 1990-2009 cars only

    Object Number: 1658199  Size: SH
  1. Clean the flex plate in solvent.
  2. Dry the flex plate with compressed air.
  3. Inspect the flex plate for the following conditions:
  4. • Damaged ring gear teeth (1)
    • Stress cracks around the flex plate-to-crankshaft bolt hole locations (2)

       Important: Do not attempt to repair the welded areas that retain the ring gear to the flex plate. Install a new flex plate.

    • Welded areas (3) that retain the ring gear onto the flex plate for cracking

    Object Number: 1552438  Size: SH

    Important: In order to maintain the proper component balance, contact surface taper, and heat transfer, manual transmission flywheels are NOT to be machined.

  5. Clean the flywheel in solvent.
  6. Dry the flywheel with compressed air.
  7. Inspect the manual transmission flywheel for the following conditions:
  8. • Pitted surfaces (1)
    • Grooves or scoring (2)
    • Rusted surface (3)
    • Damaged ring gear teeth (4)
    • Bent or damaged pressure plate locating pins (5)