Silverado Classic 2500 4WD V8-6.6L DSL Turbo (2007)
6. Remove the positive crankcase ventilation (PCV) cover screws.
7. Remove the PCV cover, diaphragm, and spring.
8. Clean and inspect the cover, diaphragm and spring.
9. Discard the diaphragm if damage is found.
Installation Procedure
1. Install the spring, diaphragm and cover.
Notice: Refer to Fastener Notice in Service Precautions.
2. Install the PCV cover screws.
Tighten the screws to 4 Nm (35 inch lbs.).
