Transfer Case Popping Noise. GMC Truck GMC Sierra Denali 2006

For 1990-2009 cars only

Makes 🢒 GMC_Truck 🢒 2006 🢒 GMC Sierra Denali 🢒 Driveline/Axle 🢒 Transfer Case - NVG 261-NP2 🢒 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 261-NP2 Unit Repair.

•	Replace the shaft bearings. Refer to Transfer Case Disassemble and Transfer Case Assemble in Transfer Case - NVG 261-NP2 Unit Repair.

•	Inspect for damaged components caused by metal debris. Refer to Transfer Case Cleaning and Inspection in Transfer Case - NVG 261-NP2 Unit Repair.