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Home >> Chevrolet >> 2010 >> Traverse LT, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 466 (Transfer Case - GETRAG 790) >> Diagnostic Information and Procedures >> Intermittent Noise

Intermittent Noise

WARNING: This page is about a different car, the 2016 GMC Acadia, 2016 Chevrolet Traverse, and 2016 Buick Enclave. However, it is still accessible from the selected car via links, so may be relevant.
Cause Correction
Inspect for the proper transaxle and gear oil levels prior to performing system diagnosis. Refer to Transfer Case Fluid Replacement .
Incorrect gear oil in the transfer case case. Replace the gear oil. Refer to Adhesives, Fluids, Lubricants, and Sealers .
Loose driveline torque tube bracket or a worn bracket bushing Tighten the bracket bolts or replace the driveline torque tube assembly as required.
Overheated rear drive axle clutch
A chatter type noise during hard or heavy acceleration and/or low speed turns may be within the rear differential.
Rear drive axle clutch overheated or axle low on fluid. Refer to Symptoms - Rear Differential Carrier .
Loose propeller shaft mounting bolts Inspect the bolts and replace and tighten as required. Refer to Propeller Shaft Replacement .
Transfer case, wheel bearing, or rear drive axle clutch module
A chatter or ratcheting type noise during hard acceleration on tight turns.
Confirm noise is coming from the transfer case or the rear drive axle clutch module. Repair as required Refer to Symptoms - Rear Differential Carrier .
  1. Test drive the vehicle to verify the noise is transfer case or wheel bearing related.
  2. Duplicate the noise with the vehicle fully assembled and on a hoist.
  3. Using a stethoscope or CH-39570  chassis ears, determine if the source of the noise is within the transfer case.
  4. Remove the right side axle shaft from the vehicle. Refer to Front Wheel Drive Shaft Replacement
    NOTE:

    The removal of the right side axle shaft will stop the front axle and both front wheels from spinning.

  5. Run the vehicle on the hoist to confirm the noise is present.
    • If the noise is present, it is transfer case related. Replace as Required
    • If the noise is NOT present, the noise is wheel bearing related, repair as required.