GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2003 🢒 GMC MD Steel Tilt (W Model) 🢒 Engine 🢒 Engine Mechanical - 5.0L and 5.7L 🢒 Engine Flywheel Cleaning and Inspection

    Object Number: 69012 Size: SH

    Caution: Wear safety glasses in order to avoid eye damage.

  1. Clean the engine flywheel in cleaning solvent.
  2. Dry the engine flywheel with compressed air.

    3. Object Number: 381965 Size: SH
  3. Inspect the engine flywheel (automatic transmission) (if equipped) for the following:
    4. • Stress cracks around the engine flywheel-to-torque converter bolt hole locations (1)
    • Missing balance weights
    • Stress cracks around the engine flywheel-to-crankshaft bolt hole locations (2) or (3)

       Important: Do not attempt to repair the welded areas that retain the ring gear to the engine flywheel plate. Always install a NEW engine flywheel.

    • Welded areas that retain the ring gear onto the engine flywheel for cracking (4)
    • Damaged ring gear teeth (5)

    Object Number: 64126 Size: SH
  4. Inspect the engine flywheel (manual transmission) (if equipped) for loose or improperly installed flywheel weights (if applicable).

    5. A properly installed flywheel weight should be installed until flush or below flush with the face of the engine flywheel.


    Object Number: 188086 Size: SH
  5. Inspect the engine flywheel (manual transmission) (if equipped) for the following:
    6. • Pitted friction surface (1)
    • Scoring or grooves (2)
    • Rust or other surface damage (3)
    • Damaged ring gear teeth (4)
    • Loose or improperly positioned ring gear
    • The ring gear has an interference fit onto the engine flywheel and the ring gear should be positioned completely flat against the flange of the engine flywheel.