Sierra 2500 4WD V8-6.6L DSL Turbo (2007)
Positive Crankcase Ventilation Valve: Service and Repair
Positive Crankcase Ventilation Valve Replacement (Passenger Side)
Positive Crankcase Ventilation Valve Replacement (Passenger Side)
Removal Procedure
1. Remove the air cleaner outlet duct.
2. Remove the fuel filter bracket bolts.
3. Position the fuel filter assembly out of the way.
4. Remove the positive crankcase ventilation (PCV) cover screws.
5. Remove the PCV cover, diaphragm, and spring.
6. Clean and inspect the cover, diaphragm and spring.
7. Discard the diaphragm if damage is found.
Installation Procedure