Constant Noise
WARNING: This page is about a different car, the 2009 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
| Cause | Correction |
|---|---|
| Inspect for proper gear oil levels prior to performing system diagnosis. | |
| Low gear oil levels | Faulty oil seal or other types of leaks may contribute to lower than required fluid levels. Refer to Rear Axle Lubricant Leak Diagnosis . Fill to the proper level with gear oil, GM P/N 12378514 (Canadian P/N 88901045). Refer to Differential Oil Replacement . |
| Worn or loose axle mounts | Repair or replace axle mounts as required. Refer to Differential Housing Support Bushing Replacement (Rear) or Differential Housing Support Bushing Replacement (Front) . |
| Worn propeller shaft constant velocity or universal joints | Replace the universal joints as required. Refer to Propeller Shaft Replacement
. If constant velocity joint is damaged, replace the propeller shaft. Refer to Propeller Shaft Replacement . |
| Worn propeller shaft center bearing assembly | Replace the center bearing assembly. Refer to Propeller Shaft Replacement . |
| Bearing noise within axle assembly | This type of noise will decrease or increase relative to the vehicle speed.
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| Gear set whine noise within the carrier assembly caused by incorrect backlash | A whine type of noise will increase or decrease relative to the vehicle speed.
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