I am trying to locate the PCV valve on my VW Jetta II csx. It's a 1990 model. The cars economy is not so great any more and the air filter gets covered in oil after driving about 2000 km or less. Some one told me that it might be the PCV valve. But i have no idea what it looks like and where it is located.
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The PCV valve (3) is mounted into the top/right side of the intake
1.The PCV valve (1) is sealed to the intake manifold with two
O-rings (2). 2.Remove PCV valve by rotating counter-clockwise 90 degrees
until locating tabs (3) have been freed. After tabs have cleared, pull valve
straight up from intake manifold.3.After valve is removed, check condition of
two valve O-rings (2).
you pcv valve should be located on the top or around the intake on top of the engine. It is covered by a little pcv valve rubber hose...it is easy to identify because it is similar to a radiator hose but a lot smaller...no where near the size of a radiator hose...but when located, the pcv valve just pulls out and to check for it being bad, shake it and it should sound like something loose inside the pcv valve (thats a good pcv valve) but what they look like, they should be a silver looking color with a small little neck on it
Remove and plug the PCV valve hose with bolt to check and see if this is the issue, many times the crankcase is not venting properly and the PCV valve needs replacment it is inexpensive enough just replace the PCV valve located on one of the valve covers it has a hose going to it.
when you are looking at the motor it is located on the valve cover it has about a half inch diameter hose attatched to it. i belive it threads into valve cover. also try going to local auto parts store and look at a haynes manual