Transfer Case Growl or Grinding Noise. GMC Truck Envoy XUV 2006

For 1990-2009 cars only

Makes 🢒 GMC_Truck 🢒 2006 🢒 Envoy XUV 🢒 Vehicle Control Systems 🢒 Vehicle DTC Information 🢒 Transfer Case Growl or Grinding Noise

Cause

Correction

DEFINITION: A faulty internal transfer case component that causes a growl or grinding noise in the transfer case.

Review the Symptoms - Transfer Case and perform the necessary inspections.

Faulty planetary gears

•	Replace the planetary carrier if any faulty gears are found. Refer to Transfer Case Disassemble and Transfer Case Assemble in Transfer Case - NVG 226-NP8 Unit Repair.

•	Replace the front case if the annulus gear is faulty. Refer to Transfer Case Disassemble and Transfer Case Assemble in Transfer Case - NVG 226-NP8 Unit Repair.

•	Replace the input gear if faulty. Refer to Transfer Case Disassemble and Transfer Case Assemble in Transfer Case - NVG 226-NP8 Unit Repair.