what is the PCV valve? - Toyota Nation Forum : Toyota Car and Truck Forums

lgene10 · 07-07-2011, 06:06 AM

what is the PCV valve..

what is the effect if it stuck close?. what will happen to the engine?.. burning oil?

eage8 · 07-07-2011, 08:55 AM

Positive crankcase ventilation valve.

if it get stuck closed the head will build pressure and force oil into the combustion camber... so yes, it will burn oil.

lgene10 · 07-07-2011, 07:41 PM

ohh i see.. now im sure this thing cause the problem..

when im way home last week.. the engine act weird. power lost. too much white blue smoke.. oil leaks everywhere (valve cover, distributor).. so i pulled it out and clean it with wd40 and gas.. the old oil inside of it is gone.. and i shake it.. im sure its not stuck anymore.. and still working fine.. i dont want to use the plastic replacement that they offer me.. and the engine runs fine now.. no smoke no leaks.. i hope this will cure the engine 100%.. i dont want to experience that again..