Transfer Case Popping Noise

WARNING: This page is about a different car, the 2002 GMC Yukon XL, 2002 GMC Yukon, 2002 Chevrolet Tahoe, 2002 Chevrolet Suburban, and 2002 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.

Cause	Correction
DEFINITION: A faulty internal transfer case component that causes a noise in the transfer case. Review the Symptoms - Transfer Case and perform the necessary inspections.
Chain jump	Replace the chain and sprockets. Refer to Transfer Case Disassemble and Transfer Case Assemble in Transmission, Transaxle Unit Repair Manual. Replace the shaft bearings. Refer to Transfer Case Disassemble and Transfer Case Assemble in Transmission, Transaxle Unit Repair Manual. Inspect for damaged components caused by metal debris. Refer to Cleaning and Inspection in Transmission, Transaxle Unit Repair Manual.

Cause

Correction

DEFINITION: A faulty internal transfer case component that causes a noise in the transfer case.
Review the Symptoms - Transfer Case and perform the necessary inspections.

Chain jump

Replace the chain and sprockets. Refer to Transfer Case Disassemble and Transfer Case Assemble in Transmission, Transaxle Unit Repair Manual.
Replace the shaft bearings. Refer to Transfer Case Disassemble and Transfer Case Assemble in Transmission, Transaxle Unit Repair Manual.
Inspect for damaged components caused by metal debris. Refer to Cleaning and Inspection in Transmission, Transaxle Unit Repair Manual.