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Turning the car on after using the air conditioner causes the car to stall

Tiny
JULIUS TINKER
  • MEMBER
  • 2007 BMW 525I
  • 0.5L
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 60,000 MILES
My air-condition system would turn on randomly sometimes. It stopped doing that, but now if I turn on the AC, turn the car off then turn it back on later could be an hour, two hours or three the car would start fine, idle fine then shuts off suddenly.

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Thursday, July 20th, 2017 AT 9:20 AM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 43,405 POSTS
Hello,

It could be that the air conditioner is heating the engine up a bit and causing the crankshaft angle sensor to go out. Here are a few guides to show you what you are in for when doing the job with some diagrams (below) that will show you how to change it on your car.

https://www.2carpros.com/articles/symptoms-of-a-bad-crankshaft-sensor

you will need to jack the car up because it is near the bottom of the bell housing (below).

https://www.2carpros.com/articles/jack-up-and-lift-your-car-safely

Also, you should run the codes.

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

Please let us know what happens.

Cheers, Ken
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Thursday, July 20th, 2017 AT 12:46 PM

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