For 1990-2009 cars only
Starter Noise Diagnosis for Chevrolet Cobalt 2008
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
- Start the engine. Verify the noise can be heard. Compare the concern to a similar vehicle.
- Remove the starter.
- Inspect the flywheel for the following:
| • | Loose flywheel bolts |
| • | Chipped gear teeth |
| • | Missing gear teeth |
| • | Bent flywheel |
| ⇒ | If not within specifications, tighten the flywheel bolts or replace the flywheel. |
| ⇒ | If all inspections were within specification, replace the starter motor. |
Repair Instructions
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
| • | Fastener Tightening Specifications 2.2L (L61) |
| • | Engine Flywheel Replacement 2.2L (L61) |
| • | Fastener Tightening Specifications 2.4L (LE5) |
| • | Engine Flywheel Replacement 2.4L (LE5) |
