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Transfer Case Whine or Rumble Noise

WARNING: This page is about a different car, the 2005 GMC Yukon XL and 2005 GMC Yukon. However, it is still accessible from the selected car via links, so may be relevant.
Transfer Case Whine or Rumble Noise

Cause Correction
DEFINITION: A faulty internal transfer case component that causes a whine noise in the transfer case.
Review the Symptoms - Transfer Case  and perform the necessary inspections.
Faulty bearings
  1. Inspect all of the bearings and journals. Refer to CLEANING AND INSPECTION in TRANSFER CASE - OVERHAUL - BW 4482-NR4.
  2. Replace any faulty bearings and any components with faulty bearing journals. Refer to Refer to TRANSFER CASE DISASSEMBLE and TRANSFER CASE ASSEMBLE in TRANSFER CASE - OVERHAUL - BW 4482-NR4.
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