Cause | Correction | ||||||||
|---|---|---|---|---|---|---|---|---|---|
Inspect for the proper transaxle and gear oil levels prior to performing system diagnosis. Refer to Transfer Case Fluid Drain and Fill . | |||||||||
Loose propeller shaft mounting bolts | Tighten the bolts, as required. Refer to Propeller Shaft Replacement . | ||||||||
Worn propeller shaft constant velocity and/or universal joints | Replace components, as required. Refer to Propeller Shaft Replacement . | ||||||||
Worn or loose propeller shaft center support bearing | Replace components, as required. Refer to Propeller Shaft Replacement . | ||||||||
Worn axle shaft constant velocity joints | Replace the constant velocity joints, as required. | ||||||||
Loose rear differential mounts or worn bushings | Tighten the mount bolts or replace, as required. | ||||||||
Incorrect oil in the transfer case | Replace the oil with GM P/N 12378261 (Canadian P/N 10953455). | ||||||||
Bearing noise within the transfer case A grinding or roar type noise will increase or decrease relative to the vehicle speed. |
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Gear set whine noise within the transfer case Whine type noises will increase or decrease relative to the vehicle speed. |
Contributing factors may include:
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