The PCV valve is for Positive Crankcase Ventalation, its used to suck gasses from the valve cover back into the intake to be re-burnt. It is an emissions system.motoxxxman said:deiz, you mean it recirculates the air from the motor lol, not the oil.
well, sometimes it does recirculate oil hahahaha but thats obviously not what its meant for lol
Hmm that is what I always thought but how come when the PCV valve fails it gets stuck open and the car runs like crappp?Bobnova said:The stock pcv system doesn't keep the crankcase under any vacuum at all.
The air removed from the crankcase by the pcv-intake manifold hole is imediatly replaced by air coming through the intake hose-valve cover pipe.