It's known as the positive crankcase ventilation system (PCV), but it isn't the most effective thing in the world. 0:00 / 0:00 A PCV system takes into account performance and emissions, but with a ...

Although some maintenance schedules include an interval for replacing the positive crankcase ventilation, or PCV, valve, others may not. In the latter case, a general recommendation is to replace ...

The job of the Positive Crankcase Ventilation (PCV) system is to remove blow-by gases from the crankcase by vacuum and recirculate them via the intake manifold to be burned in the engine.

The system that performs this chore is commonly called a positive crankcase ventilation (PCV) system. To grossly simplify the topic for our purposes here, a PCV hose connects the engine's intake ...

All engines need some sort of crankcase pressure relief. Whether it's in the form of a simple breather, or a more effective PCV system, you need a way to vent blowby gases inherently generated by ...

Per BMW’s safety recall report, the problem stems from blow-by-liquid from the positive crankcase ventilation system, which can drip liquid onto the plug connector that may not be properly ...

The PCV (Positive Crankcase Ventilation) system is designed to regulate and remove fumes from the engine crankcase, and to alleviate crankcase pressure which could cause oil leaks or seal damage.