Transfer Case Clunk In 4HI
WARNING: This page is about a different car, the 2007 GMC Sierra and 2007 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
Transfer Case Clunk In 4HI
| Cause |
Correction |
DEFINITION: During acceleration or deceleration, a clunk is heard or felt in the transfer case while in the 4HI range only.
Review the Symptoms - Transfer Case and perform the necessary inspections. |
| Incorrect fluid level or incorrect fluid |
- Inspect the transfer case for the correct fluid level. Refer to Transfer Case Fluid Replacement .
- Inspect the transfer case for the correct type of fluid.
- Flush the transfer case and fill with the correct fluid, if required. Refer to Transfer Case Fluid Replacement .
|
| Input gear thrust washers |
- Inspect for worn or missing input gear thrust washers. Refer to Cleaning and Inspection .
- Replace the thrust washers as required. Refer to Transfer Case Disassemble and Transfer Case Assemble .
|
| 2/4 Wheel drive synchronizer assembly |
- Inspect the synchronizer for the following conditions:
- Replace the synchronizer assembly if faulty. Refer to Transfer Case Disassemble and Transfer Case Assemble .
|
| Rear output shaft bearing outer retaining ring |
- Inspect for the following conditions:
- Proper installation of the rear output shaft bearing retaining ring
- Excessive wear or damaged retaining ring groove in the rear case half
- Repair or replace the following components if faulty:
|
| Worn high speed teeth on the range sleeve |
- Inspect for worn high speed teeth on the range sleeve. Refer to Cleaning and Inspection .
- Replace the range sleeve if worn. Refer to Transfer Case Disassemble and Transfer Case Assemble .
|