weird crankcase pressure problem

194stang

New Member
Aug 11, 2003
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ok, added l/t and o/r pipe , now all of a sudden have excessive crankcase pressure!! checked pvc and its working. car had been sitting for about 1month or 1 1/2 before did the work. any ideas? I am stumped!! guess am gonna pull valve covers to see if any valve train probs, but car ran fine before so..... :shrug:
thanks, Randy