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Home >> Chevrolet >> 2007 >> Avalanche 5.3 3 >> Repair and Diagnosis >> External Pages >> Different car >> Section 900 (Transfer Case - BW 4485-Nr3 AWD) >> Diagnostic Information and Procedures >> Transfer Case Whine or Rumble Noise

Transfer Case Whine or Rumble Noise

WARNING: This page is about a different car, the 2007 GMC Yukon XL, 2007 GMC Yukon, 2007 Cadillac Escalade EXT, 2007 Cadillac Escalade ESV, and 2007 Cadillac Escalade. 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 .
  2. Replace any faulty bearings, and any components with faulty bearing journals. Refer to Transfer Case Disassemble  and Transfer Case Assemble .
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