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

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 they look dirty. Without missing a ...

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 ...

Popular Mechanics’s automotive experts outline the tools and techniques proven to smoke out even the toughest to find vacuum ...

The heater for the positive crankcase ventilation (PCV) valve may short circuit. An electrical short can cause the parts within the PCV valve to melt and increase the risk of a fire, even when the ...