No crank no start

Tiny
ELIASASTURIAS
  • MEMBER
  • 2009 BMW 528
  • 3.0L
  • V6
  • 4WD
  • AUTOMATIC
  • 150,000 MILES
I started my car just fine went to work. Left work 8 hours later car started just fine. Stopped in auto part to get 1 quart of oil. Try starting car to go home and it won’t start. It won’t even crank. Can a bad crankshaft sensor cause this?
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Friday, December 4th, 2020 AT 7:28 AM

3 Replies

Tiny
BMDOUBLE
  • EXPERT
No, but a bad crankshaft position sensor can cause a cranks but will not start condition. If it will not even crank there are several things that it could be, but starting with the basics would be the best thing to do, like the battery test, battery connections, then retrieve any trouble codes in the DME, then running the pinpoint test based on the results of the code/s that were retrieved.
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Friday, December 4th, 2020 AT 8:01 AM
Tiny
ELIASASTURIAS
  • MEMBER
I did the battery test and battery gives me 12v.I bought the battery last year so I had a great feeling it wasn t. I check for any check engine codes and I have no codes stored.
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Friday, December 4th, 2020 AT 8:45 AM
Tiny
ROY B
  • EXPERT
Good afternoon,

12 volts for the battery is no good. It is almost dead. You need 12.6 volts for the proper power. I would charge your battery and load test it and check the charging system as well.

https://www.2carpros.com/articles/how-to-charge-your-car-battery

https://www.2carpros.com/articles/car-battery-load-test

https://www.2carpros.com/articles/how-to-check-a-car-alternator

As far as the no cranking, I attached a wiring diagram for you of the starting system. You need to check for power to the starter solenoid in the start position to see if it is a wiring issue or starter issue.

https://www.2carpros.com/articles/how-to-check-wiring

https://www.2carpros.com/articles/starter-not-working-repair

Roy
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Friday, December 4th, 2020 AT 2:23 PM

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