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Transfer Case No Front Drive

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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
  1. Inspect the transfer case fluid for being black. If the fluid is black, it is most likely caused by a viscous coupling failure.
  2. Test for a faulty viscous coupling. Refer to Transfer Case Viscous Coupling Test .
  3. Disassemble the transfer case. Refer to Transfer Case Disassemble .
  4. Inspect the viscous coupling for leaking. Refer to Cleaning and Inspection .
  5. Replace the viscous coupling if it is faulty. Refer to Transfer Case Assemble .
Planetary carrier faulty
  1. Disassemble the transfer case. Refer to Transfer Case Disassemble .
  2. Inspect for faulty planetary carrier components. Refer to Cleaning and Inspection .
  3. Replace any faulty planetary carrier components. Refer to Transfer Case Assemble .
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