Quote:
Originally Posted by phunk
Yes? Who cares what it sounds like when you shake it? See the service manual for details on how to test it. You originally asked if its supposed to flow under vacuum at idle, and the answer is yes. Thats exactly what its supposed to do. I also showed you a screenshot from the service manual stating the same thing. As for your video, both the new and the old one sound identical... so I am not sure what its supposed to prove. But I have some valves here off a perfectly running Z and they dont make that noise at all. So you tell me what sound is normal.
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I dunno, but the fact I had to shake the old one pretty vigorously in order to get it to rattle like that says a lot to me compared to the new one which I barely had to put any force into In order for it to rattle like that. in any case I would rather have new pcv valves than ones with almost 157,000 miles on them and no history on the car of whether the oil was changed on a timely basis to prevent the valves from gumming up in the first place if they ever had.