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Old 04-13-2013, 02:45 PM
Dark5yde Dark5yde is offline
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Quote:
Originally Posted by raider03 View Post
Another thought if your ccv was bad then there would have been problems with idle and strong suction when he took off the cap with the engine running.

Here is some more info on diagnosing the CCV system...
How to test the BMW E39 pressure-controlled crankcase ventilation system (CCV)? - Bimmerfest - BMW Forums

That is opposite of everything I have read. If the CCV system was working and supplying the 10-15psi vacuum in the engine then when you take the cap off it would mess up the idle and sometimes toss a code because you would have essentially created a vacuum leak. However if the system was plugged and not working there would be no visible effect in the idle due to the vacuum not being there as it should be.

Either way I think I am on the right track with wanting to replace all the parts of the CCV system and being done with it.
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