Transfer Case Clunk in 4LO
WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
Transfer Case Clunk in 4LO
| Cause |
Correction |
DEFINITION: During acceleration or deceleration, a clunk is heard or felt in the transfer case while in 4LO range only.
Review the Symptoms - Transfer Case and perform the necessary inspections. |
| High/low planetary carrier assembly |
- Inspect for the following conditions:
- Replace the high/low planetary if any of the above conditions are found.
Refer to
Transfer Case Disassemble
and
Transfer Case Assemble
in Transfer Case - NVG 261-NP2 Unit Repair. |
| Annulus gear |
- Inspect the annulus gear to front case fit for excessive looseness.
- Replace the front case half if the annulus gear is loose. Refer to
Transfer Case Disassemble
and
Transfer Case Assemble
in Transfer Case - NVG 261-NP2 Unit Repair.
|
| Range sleeve |
- Inspect the range sleeve engagement teeth for excessive wear.
- Inspect the range sleeve to mainshaft splines for excessive wear.
- Replace the range sleeve if faulty. Refer to
Transfer Case Disassemble
and
Transfer Case Assemble
in Transfer Case - NVG 261-NP2 Unit Repair.
|