The PCV valve is a critical component of modern cars. However, it can cause numerous issues if it goes bad. Here's how a faulty PCV can affect your engine.

The Positive Crankcase Ventilation (PCV) system rarely gets attention until something goes wrong, but mechanics are increasingly warning that neglecting it can quietly shorten engine life. What seems ...

Every engine has some sort of crankcase breathing system. The internal combustion process creates pressure, some of which makes its way past the piston rings-along with fuel vapors-and into the rest ...

If your car has a PCV valve, and if your engine has been idling roughly or a malfunction indicator light goes on, check the valve. Car manufacturers suggest that PCV valves be cleaned or replaced ...