With gas prices going through the roof ... Its not difficult to check the air filter and PCV valve yourself. Heres what you need to know. The PCV (positive crankcase ventilation) valve is a ...

Control valves are critical mechanical components designed to regulate the flow, pressure, temperature, or fluid levels ...

When you start to pump gas, the pipe, which has been “blocked” like the hose, releases the air quickly. “This expelled air brings with it a pressure that’s strong enough to hold the valve ...