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
Transfer Case Cleaning and Inspection
in Transfer
Case - NVG 261-NP2 Unit Repair.
- Replace the thrust washers as required. Refer to
Transfer Case Disassemble
and
Transfer Case Assemble
in Transfer Case - NVG 261-NP2
Unit Repair.
|
2/4 Wheel drive synchronizer assembly
|
- Inspect the synchronizer for the following conditions:
• | The synchronizer hub internal teeth to rear output shaft splines
for excessive looseness caused by wear |
• | The synchronizer sleeve engagement teeth to the synchronizer gear
for wear |
- Replace the synchronizer assembly if faulty. Refer to
Transfer Case Disassemble
and
Transfer Case Assemble
in Transfer Case - NVG 261-NP2
Unit Repair.
|
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:
• | Properly install a new rear output shaft bearing outer retaining
ring. |
|
Worn high speed teeth on the range sleeve
|
- Inspect for worn high speed teeth on the range sleeve. Refer to
Transfer Case Cleaning and Inspection
in Transfer
Case - NVG 261-NP2 Unit Repair.
- Replace the range sleeve if worn. Refer to
Transfer Case Disassemble
and
Transfer Case Assemble
in Transfer Case - NVG 261-NP2
Unit Repair.
|