Yes, there must be a leak somewhere. There is absolutely no way that a PCV is regulating the vacuum in the crankcase to 1".

Actually I forgot that I swore to myself never to post again in this ridiculous thread!

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1988 325is (purchased new) sold
2004 X5 3.0 2005 X3 2.5
2008 X5 3.0 (new to me)