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pcv valve
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  1. S80 (2007-2016)
    I just replaced my old oil trap and PCV diaphragm on my 2010 S80 3.2 and it now releases pressure from the small hole on the diaphragm every time I depress the brakes. Didn't do this at all even with the old PCV system. Took the new parts off and replaced it with the old ones and it stops making...
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