Thread: Crankcase ventilation system
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Old 04-13-2013, 01:20 PM
raider03 raider03 is offline
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Quote:
Originally Posted by Dark5yde View Post
He did the remove the oil cap while running test and the idle did not change.
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
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