Transfer Case No Front Drive
WARNING: This page is about a different car, the 2004 GMC Sierra and 2004 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
Transfer Case No Front Drive
| Cause |
Correction |
DEFINITION: The transfer case is not delivering engine torque to the front propeller shaft.
Review the Symptoms - Transfer Case and perform the necessary inspections. |
| Viscous coupling faulty |
- Inspect the transfer case fluid for being black. If the fluid is black, it is most likely caused by a viscous coupling failure.
- Test for a faulty viscous coupling. Refer to Transfer Case Viscous Coupling Test .
- Disassemble the transfer case. Refer to
Transfer Case Disassemble
in Transfer Case - NVG 149-NP3 Unit Repair.
- Inspect the viscous coupling for a bulged cover. Refer to
Cleaning and Inspection
in Transfer Case - NVG 149-NP3 Unit Repair.
- Replace the viscous coupling if faulty. Refer to
Transfer Case Assemble
in Transfer Case - NVG 149-NP3 Unit Repair.
|
| Planetary carrier faulty |
- Disassemble the transfer case. Refer to
Transfer Case Disassemble
in Transfer Case - NVG 149-NP3 Unit Repair.
- Inspect for faulty planetary carrier components. Refer to
Cleaning and Inspection
in Transfer Case - NVG 149-NP3 Unit Repair.
- Replace any faulty planetary carrier components. Refer to
Transfer Case Assemble
in Transfer Case - NVG 149-NP3 Unit Repair.
|