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Old 11-29-2018, 07:37 PM   #106
striker1le
 
Drives: '17 M6 ZL1
Join Date: Jun 2013
Location: SF Bay area
Posts: 47
Had this happen to me right after I got my engine replaced. It was the crank sensor as quoted by the dealer. Ironically, it was one of the parts that got replaced as part of the new engine. It failed to re-learn the new engine which resulted in an unusually long crank or no crank at all if the engine was warm. When it was a long crank, the car would start with some sort of **clang** sound. On a cold start, it cranked fine the first couple times with no issues. After that, it would do the long crank thing again.
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