You take your car in for an oil change. The work is almost done when the technician comes out to talk to you. Hes holding your air filter and PCV valve and recommending that you replace both because ...

Car engines require a lot of parts working in unison to properly function. There are thousands of explosions happening every minute when your car's engine is running, hence the name "internal ...

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 ...

The PCV valve (positive crankcase ventilation valve) is a vital part of the emissions controlsystem on most vehicles. Not every vehicle has a PCV valve, but most do. If yours has one, and if your ...

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 a ...

Positive Crankcase Ventilation—three dirty words, but do they really need to be perceived that way? In general, the PCV system has two main functions: vapor relief and liquid separation. PCV systems ...