Basic Oil Separator/Pressure Control Valve (PCV) Service Kit | ES4781296

The PCV provides a one-way exit for gasses built up in the crankcase. Over time, contamination might cause reduced air flow and cracks can occur in the housing. If your car is experiencing a loss of boost pressure or a decrease in performance with a rough idle, this valve might to be blame. Replace your faulty PCV valve to keep your engine running at its full potential. This gasket seals the PCV to the engine block and is recommended to be replaced any time the PCV is removed.