Transfer Case Grating 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.
Broken apply plate	Inspect for a broken apply plate. Refer to Transfer Case Disassemble and Transfer Case Assemble in Transmission, Transaxle Unit Repair Manual.
Faulty clutch pressure plate bearing	Inspect for a faulty clutch pressure plate bearing. Refer to Transfer Case Disassemble and Transfer Case Assemble in Transmission, Transaxle Unit Repair Manual. Recondition the transfer case components that are damaged from debris. Refer to Transfer Case Disassemble and Transfer Case Assemble in Transmission, Transaxle Unit Repair Manual.