3800 pcv valve

12secGTP

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Nov 10, 2008
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Des Plaines
you should replace them when you do a full tuneup. they are usually less than 10$. I have never heard of a HP PCV valve and I dont think you would get any kind of benefit from one. they are usually good for 20-30k.
they allow the crank case to ventilate. all engines get some kind of blow by past the piston rings. these compressed gasses get down into the crankcase and can cause a pressure buildup which if not vented properly can blow seals and gaskets.

HTH
chrys
 
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