E46Fanatics - View Single Post - Replaced Valve Cover Gasket & Vanos Seals. Still have leak and burning oil smell. :(
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Old 12-06-2012, 07:10 PM   #10
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Join Date: Apr 2008
Location: Dallas, TX
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My Ride: E30-E46-E90-E90M-F30
Originally Posted by Dreamliner330 View Post
So I just saw that my valve cover is cracked, so I need to get another from the dealer tomorrow.

The parts guy at the dealer said a plugged ccv or ccv hose could cause excess crank case pressure and that could have cracked the valve cover. Any truth to that?

I've never replaced the ccv but I'm not so sure I want to do it if I don't need to, looks like a pain to do.
that is the whole point behind a CCV. the CCV is design to relieve pressure cause by the engine blow by.
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