GM Service Manual Online
For 1990-2009 cars only

Diagnostic Instructions

    • Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure.
    • Review Strategy Based Diagnosis for an overview of the diagnostic approach.
    •  Diagnostic Procedure Instructions provides an overview of each diagnostic category.

Circuit/System Testing

  1. Remove the flywheel inspection cover.
  2. Inspect the flywheel for the following:
  3. • Loose flywheel bolts
    • Chipped gear teeth
    • Missing gear teeth
    • Bent flywheel
    If not within specifications, secure the flywheel bolts or replace the flywheel.
    If all inspections were within specification, replace the starter motor.

Repair Instructions

    •  Fastener Tightening Specifications for the 3.7L engine or Fastener Tightening Specifications for the 5.3L engine
    •  Engine Flywheel Replacement for the 3.7L engine or Automatic Transmission Flex Plate Replacement for the 5.3L engine
    •  Starter Motor Replacement