For 1990-2009 cars

This crankcase ventilation system does not use a PCV valve. The system uses a separator to vent the engine and separate the vapors from the oil. Returning the oil to the crankcase and the vapors to the engine to be reburned. A plugged oil/air separator or hose may cause:

• | Oil leaks due to high crankcase pressure.

• | Sludge in the engine due to inadequate separating of crankcase vapors.