Question about 1997 BMW 5 Series

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My 97 520i bmw wont start it fires some times but wont start is it a petrol problem

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If it fires only occasionally, my first suspect would be the crank position sensor (aka pulse generator). Should be on the front of the engine mounted very near the toothed wheel on the crankshaft,
You should check for fuel pressure at the fuel rail while you are cranking to see if it is a fuel delivery problem.

Posted on Mar 29, 2011

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Posted on Jan 02, 2017

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