GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2002 🢒 Jimmy - 4WD 🢒 Driveline/Axle 🢒 Transfer Case - NVG 236/246-NP8 (Two Speed Automatic) 🢒 Transfer Case Growl or Grinding Noise

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.

Faulty planetary gears
    • Replace the planetary carrier if any faulty gears are found. Refer to Transfer Case Disassemble and Transfer Case Assemble in the Transmission/Transaxle/Transfer Case Unit Repair Manual.
    • Replace the front case if the annulus gear is faulty. Refer to Transfer Case Disassemble and Transfer Case Assemble in the Transmission/Transaxle/Transfer Case Unit Repair Manual.
    • Replace the input gear if it is faulty. Refer to Transfer Case Disassemble and Transfer Case Assemble in the Transmission/Transaxle/Transfer Case Unit Repair Manual.