Checking Closed Crankcase Vent System (If Equipped)

1. 
   RG15633-UN-19OCT07

   Closed Crankcase Vent System

   
   RG15632-UN-19OCT07

   Crankcase Vent System Bypass Port

   A - Hose, Compressor to Filter Housing

   B - Oil Drain Hose

   C - Oil Drain Tube Assembly

   D - Check Valve

   E - Crankcase Vent System Bypass Port

   Inspect hoses (A) and (B) and oil drain tube assembly (C) for kinks, blockage, or other damage.

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2. Inspect check valve (D) for damage.

3. Verify that the crankcase vent system bypass port (E) is not plugged.

4. Inspect CCV unit for cracks or other damage.

5. Inspect turbo compressor coupling for cracks, blockage or other damage.