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Test Procedure

WARNING: This page is about a different car, the 2002 Pontiac Firebird and 2002 Chevrolet Camaro. However, it is still accessible from the selected car via links, so may be relevant.
  1. Did you perform the Engine Electrical Diagnostic System Check? If yes, go to step  2 . If no, go to DIAGNOSTIC SYSTEM CHECK - ENGINE ELECTRICAL  .
  2. Start the engine. Does the starter operate normally? If yes, go to INTERMITTENTS OR POOR CONNECTIONS  . If no, go to step  3 .
  3. Start the engine while listening to the starter motor turn. Is there a loud "whoop" (it may sound like a siren if the engine is revved while the starter is engaged) after the engine starts, but while the starter is still held in the engaged position? If yes, go to step  6 . If no, go to step  4 .
  4. Do you hear a "rumble", a "growl", or, in some cases, a "knock" as the starter is coasting down to a stop after starting the engine? If yes, go to step  7 . If no, go to step  5 .
  5. When the engine is cranked, do you hear a high-pitched whine after the engine cranks and starts normally? (This is often diagnosed as a starter drive gear hang-in or a weak solenoid.) If yes, go to step  8 . If no, go to step  7 .
  6. Inspect the flywheel ring gear for the following:
    • Chipped gear teeth
    • Missing gear teeth
    • Milled teeth
    Is the flywheel bent, or does it have damaged teeth? If yes, go to step  9 . If no, go to step  10 .
  7. Remove the starter motor. Refer to STARTER MOTOR (3.8L)  or STARTER MOTOR (5.7L)  . Inspect the starter motor bushings and clutch gear. Does the clutch gear have chipped or milled teeth or worn bushings? If yes, go to step  10 . If no, go to step  9 .
  8. Shim the starter motor away from the flywheel by adding shims between the starter motor and the engine block one at a time. Flywheel runout may make this noise appear to be intermittent. Did you complete the repair? If yes, go to step  11 .
  9. Replace the flywheel. Remove transmission to access flywheel. Refer to TRANSMISSION . Did you complete the replacement? If yes, go to step  11 .
  10. Replace the starter motor. Refer to STARTER MOTOR (3.8L)  or STARTER MOTOR (5.7L)  . Did you complete the replacement? If yes, go to step  11 .
  11. Operate the system in order to verify the repair. Did you correct the condition? If yes, system is OK. If no, go to step  3 .
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