DEFINITION: During acceleration or deceleration, a clunk is heard or felt in the transfer case.

Review the Symptoms - Transfer Case and perform the necessary inspections.

Incorrect fluid level or incorrect fluid

1. Inspect the transfer case for the correct fluid level. Refer to Transfer Case Fluid Replacement .
2. Inspect the transfer case for the correct type of fluid.
3. Flush the transfer case, and fill with the correct fluid, if required. Refer to Approximate Fluid Capacities .

Worn or loose chain

1. Inspect for a loose chain, excessive wear on the snubber or deep gouges in the lining.
2. Replace the chain, sprockets, and snubber. Refer to Transfer Case Disassemble and Transfer Case Assemble .