If not functioning properly, the PCV valve can lead to numerous drivability and emissions issues, but what is the meaning of ...

Separating the crankcase from the intake manifold, which is a source of varying air pressure, the PCV valve maintains the optimal level of vacuum in the crankcase to extract the products of blow ...

One component that might not come to mind immediately when you start the tuneup process is your car's PCV (Positive Crankcase Ventilation) valve. The PCV valve helps recirculate unburned ...