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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1121 (Rear Drive Axle) >> Diagnostic Information and Procedures >> Intermittent Noise

Intermittent Noise

WARNING: This page is about a different car, the 2008 Cadillac CTS. However, it is still accessible from the selected car via links, so may be relevant.
Cause Correction
IMPORTANT: Inspect for the proper gear oil levels prior to performing system diagnosis. Refer to Rear Axle Lubricant Level Inspection .
Worn, loose, or damaged axle mount and/or bracket Repair or replace the axle mount and/or bracket as required.
Incorrect gear oil Replace with the correct gear oil and friction modifier additive. Refer to Sealers, Adhesives, and Lubricants .