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Old 10-08-2012, 06:39 PM
SRider SRider is offline
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Location: Kansas City
 
Join Date: Dec 2005
Posts: 37
Mein Auto: 2001 540iA
I had a similar problem when I did the valley pan on a previous 540. When I was putting the intake on, one of the gaskets slipped out and was not seated properly. That created a huge leak for unmetered air and the car would turn over but not start. I could give it gas and it would fire, run for 10-15 seconds then die. I could hear popping from the intake while the car died. You can use a telescoping mirror to look underneath the intake from the rear to see if an intake gasket is not seated properly.
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