Transfer Case Popping Noise

WARNING: This page is about a different car, the 2008 GMC Yukon XL, 2008 GMC Yukon, 2008 Chevrolet Tahoe, 2008 Chevrolet Suburban, and 2008 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 popping 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 . Replace the shaft bearings. Refer to Transfer Case Disassemble and Transfer Case Assemble . Inspect for damaged components caused by metal debris. Refer to Drive Chain, Drive Sprocket, and Driven Sprocket Cleaning and Inspection and Front Output Shaft and Input Shaft Cleaning and Inspection .