Is this normal?
05-06-2012, 06:20 PM
#1
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Is this normal?
I was fooling around with the S and randomly checked the PCV valve and it was too clean?
I thought this valve was to maintain a certain pressure in the engine block and
recycle unburned oil fumes? It looked practically brand new. Is this normal? Here is a picture of it.
Oh, it has 56K miles.
http://www.flickr.com/photos/74054697@N07/7150059085/
I thought this valve was to maintain a certain pressure in the engine block and
recycle unburned oil fumes? It looked practically brand new. Is this normal? Here is a picture of it.
Oh, it has 56K miles.
http://www.flickr.com/photos/74054697@N07/7150059085/
05-06-2012, 06:33 PM
#2
Is that an oem valve ?, I don't remember if the oem pcv valve looked like that one or not. But you are right that it appears to be too clean for being used that many miles.
Does your pcv valve rattle when you shake it ?. You can test it while the engine is running. When the engine is running squeeze the hose with a pair of pliers and you should hear the pcv valve activate as you squeeze and un-squeeze the vacuum hose. If you don't hear it click then it isn't working. If it is an aftermarket pcv valve it may not be properly designed, if it is the oem valve then it may be stuck shut. You should definitely see a trace of oil flowing through the bottom and top of the valve. No suction through the valve = a clean valve IMO. It should look and smell like oil vapours if it is working properly.
Does your pcv valve rattle when you shake it ?. You can test it while the engine is running. When the engine is running squeeze the hose with a pair of pliers and you should hear the pcv valve activate as you squeeze and un-squeeze the vacuum hose. If you don't hear it click then it isn't working. If it is an aftermarket pcv valve it may not be properly designed, if it is the oem valve then it may be stuck shut. You should definitely see a trace of oil flowing through the bottom and top of the valve. No suction through the valve = a clean valve IMO. It should look and smell like oil vapours if it is working properly.
05-06-2012, 07:38 PM
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I don't know if it's oem. Are oem valves blue? And I realized that the black lower part is metal. There's definitely a rattle and when I took off the hose, there was oil on the top but the bottom was completely dry.(pictured)I gave it a good blow and there was air going thru.
http://www.flickr.com/photos/74054697@N07/7151108157/
http://www.flickr.com/photos/74054697@N07/7005018456/
http://www.flickr.com/photos/74054697@N07/7151108157/
http://www.flickr.com/photos/74054697@N07/7005018456/
05-06-2012, 07:55 PM
#4
My oem factory valve was all black but I don't know if replacement parts ones were blue or not. Having oil on the top means that it must have come through the bottom. I would put it back on and run the engine at idle and squeeze the hose and see if you can hear it click open and close.
05-06-2012, 08:17 PM
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