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      01-20-2013, 05:42 PM   #8
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Drives: E92 Montego Blue 328i
Join Date: Mar 2005
Location: Atlanta, GA

Posts: 117
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I can't really tell where the hissing comes from to be perfectly frank. It's ear piercing and I can't bear to have it on for long.

I don't know where else it could be coming from other than he intake manifold, all I did was replace valve cover, crank case vent hose, and intake manifold. Could crank case vent hose issue cause this?

I really appreciate your help.

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