The full term we're discussing here is the Positive Crankcase Ventilation valve. This is a small component found between the ...

The positive crankcase ventilation valve releases exhaust gas and unburned fuel from the engine block into the intake manifold. All engines allow some exhaust gases, unburned fuel and oil to ...

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 one-way valve that recycles crankcase gases back ...