Cause | Correction |
|---|---|
Inspect for proper gear oil levels prior to performing system diagnosis. | |
Loose propeller shaft mounting bolts | Tighten the bolts as required. Refer to Propeller Shaft Replacement in Propeller Shaft. |
Worn propeller shaft constant velocity joint. | Replace the propeller shaft assembly. Refer to Propeller Shaft Replacement in Propeller Shaft. A worn propeller shaft constant velocity joint may create a clicking, grinding, or snapping type of noise. |
Worn or loose center bearing assembly | Replace the center bearing assembly as required. A worn center bearing assembly may cause vehicle vibration or a grinding or squealing type of noise. |
Worn universal joints | Replace the universal joints as required. A worn universal joint may create a clicking or a snapping type of noise. |
Worn axle shaft constant velocity joints. | Replace or repair the constant velocity joints as required. A worn axle shaft constant velocity joint may create a clicking, grinding, or snapping type of noise. |
Transfer case noise | Refer to Diagnostic Starting Point-Transfer Case procedure in Power Takeoff Unit. |
Worn or damaged axle mounting bushings (Side) | Check the bushing position and replace the bushings as required. A worn bushing may create a clunk type of noise during acceleration or deceleration. |
Worn or damaged axle mounting bushings (Rear) | Replace the bushings as required. A worn bushing may create a clunk type of noise during acceleration or deceleration. |
Loose rear mounting bracket | Tighten the bracket bolts as required. |
Loose or damaged prop guard | Repair or replace as required. A loose dust shield may contact the propeller shaft assembly and create a scraping or grinding type of noise. |
Bearing noise within axle assembly | A grinding or roar type of noise will increase or decrease relative to vehicle speed.
|
Gear set whine noise within axle assembly created by incorrect gear backlash | A whine type of noise will increase of decrease relative to vehicle speed.
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