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Re: vacumm leak (archive)

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Posted by JamesM on October 05, 2000 at 07:41:52:

In Reply to: vacumm leak posted by MKM3 on October 04, 2000 at 23:11:18:

It's supposed to do that. You just opened the crankcase, and since this car holds the crankcase under a slight vacuum, you just created a vacuum leak. Just make sure the o-rings on the dipstick handle are still good.

You'll have to pull the air plenum off to check all of the crankcase breather/oil separator hoses and the ide control valve hoses. A crack in any one of these parts will cause potentially damaging vacuum leaks. Replace cracked hoses as soon as possible, and don't drive the car hard until you do.

[email protected]
1988 M3 Henna
1983 535i

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