Starter Motor Noise Diagnosis

Starter Motor Noise Diagnosis

Diagnostic Instructions

* Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. Initial Inspection and Diagnostic Overview
* 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:

* 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

Perform the Diagnostic Repair Verification after completing the diagnostic procedure. Verification Tests

* Fastener Tightening Specifications for the 3.5 L engine
* Fastener Tightening Specifications for the 3.9 L engine
* Fastener Tightening Specifications for the 5.3 L engine
* Engine Flywheel Replacement for the 3.5 L engine
* Engine Flywheel Replacement for the 3.9 L engine
* Engine Flywheel Replacement for the 5.3 L engine
* Starter Motor Replacement (LS4) Starter Motor Replacement (RPOs LZE/LZ4/LZ8)