GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2006 🢒 GMC Sierra Denali 🢒 Vehicle Control Systems 🢒 Vehicle DTC Information 🢒 Transfer Case Popping Noise

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 in Transfer Case - NVG 263-NP1 Unit Repair.
    • Replace the shaft bearings. Refer to Transfer Case Disassemble and Transfer Case Assemble in Transfer Case - NVG 263-NP1 Unit Repair.
    • Inspect for damaged components caused by metal debris. Refer to Transfer Case Cleaning and Inspection in Transfer Case - NVG 263-NP1 Unit Repair.