Positive Crankcase Ventilation System

The positive crankcase ventilation (PCV) system consists of a PCV valve, and two PCV hoses. The PCV valve is retained on the right-hand valve cover and a hose is connected between PCV valve and the throttle body elbow. The PCV valve regulates the amount of ventilation air and crankcase gas supplied to the intake manifold and also prevents backfiring into the crankcase. The left-hand valve cover PCV hose is connected to the air cleaner outlet pipe.

The PCV system recycles crankcase gases back through the engine where they mix with incoming air/fuel charge.

The positive crankcase ventilation system helps to reduce hydrocarbon emissions from the engine.