Cause
| Correction
|
DEFINITION: A visible indication of an external fluid leak from the transfer case.
Review the
Symptoms - Transfer Case and perform the necessary inspections.
|
Drain plug or fill plug leak
|
| • | Inspect for the correct sealer and amount of sealer on the plugs. |
|
Vehicle speed sensor leaking
|
| • | Inspect the vehicle speed sensor (VSS) for the following conditions: |
| - | Cut or damaged O-ring seal |
| - | VSS over tightened causing deformation in the VSS |
|
Rear output shaft seal leaking
|
| • | Inspect the slip yoke seal surface for wear or pitting. Replace the slip yoke if the surface could cause leakage. |
|
Front output shaft seal leaking
|
| • | Inspect the front output shaft seal journal for wear. Replace the front output shaft if worn. |
| • | Inspect the seal bore for damage. Replace the front case half if the seal bore is damaged. |
|
Leaking at the vent tube
|
| • | If the transmission fluid level is low, and the transfer case fluid level is too high, replace the transfer case input shaft seal. Refer to
Input Shaft Seal Replacement . |
| • | Inspect the input shaft seal surface for wear or damage. |
|
Encoder motor area leak
|
| • | Inspect for a faulty actuator lever shaft bearing. Replace the control actuator lever shaft if the bearing or seal surface is faulty. Replace the bearing if faulty. Refer to
Transfer Case Assemble. |
|
Transfer case to transmission area leak
|
| • | Inspect the input shaft seal surface for wear or damage. |
| • | Inspect the front case seal bore for damage. |
| • | Inspect for the input gear bore seal leaking. Replace the input gear bore seal if leaking. Refer to
Transfer Case Assemble. |
|
Front case half to rear case half seam leak
| Disassemble and seal the case halves again. Refer to
Transfer Case Assemble.
|
