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Unread 03-09-2008, 07:27 PM   #1
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Name: sandersnsandy
Title: United Newb
Status: Offline
Join Date: Mar 2008
Location: Boring Or.
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Your Ride: 1997 740i
Angry 97 740i engine trouble

Im new to this site so I hope im in the right place to ask---My problem started with a whiring noise sounding something like a tension pully bearing.Put diagnostic and got back codes P1186,P1187,PO300,PO301,PO302,PO305 an PO306 I Then replaced o2 sensors (pre cat) and cleared codes.No new codes have come back. Whiring noise still there and smoking like a freight train.Smoke smells like burning plastic/rubber.I removed oil filler cap only to find its pulling a very strong vacume.With cap off whiring noise stops but smokes just as bad.It only has 94,000 on the clock and I havent had any trouble before now.Dont know where to start. Any help would be very much appreciated,
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