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Old 01-27-2013, 03:43 PM
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moots moots is offline
Dinggg....what now!
Location: Malaysia
Join Date: Apr 2005
Posts: 1,019
Mein Auto: '04 525i
Originally Posted by Maine82 View Post
I reversed the PCV valve and things seem better now. If I leave it at idle for a few minutes and then remove the oil fill cap some pressure does release, are you having the same thing occur? Vacuum present in the valve cover?
there shouldn't be any pressure release when the oil filler cap is removed.if there is then the vacuum is not doing what it's supposed to.we need vacuum in the crankcase where the blowby gases is pulled up and out via the valve cover and into the intake manifold ti be reburnt.of crs this has to go thru the ccv.....or the pcv in yr case.

pls ensure you do not have pressure on the valve cover or something will blow eventually....
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