Sierra 2500 2WD V8-6.6L DSL Turbo (2007)
Positive Crankcase Ventilation Valve: Service and Repair
Positive Crankcase Ventilation Valve Replacement (Driver Side)
Positive Crankcase Ventilation Valve Replacement (Driver Side)
Removal Procedure
Important: After removing the charged air cooler duct, cover the turbocharger opening with tape in order to prevent entry of objects.
1. Loosen the charged air cooler inlet duct connector to turbocharger clamp (1).
Important: Do not use a screwdriver or other tool to pry the hose loose. The hose can be torn or damaged. Loosen the hose by twisting.
2. Remove the charged air cooler inlet duct connector (4) from the turbocharger.
3. Remove the positive crankcase ventilation (PCV) cover screws.
4. Remove the PCV cover, diaphragm, and spring.
5. Clean and inspect the cover, diaphragm, and spring.
6. Discard the diaphragm if damage is found.
Installation Procedure
