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Car shut off while driving

Tiny
YENSAI
  • MEMBER
  • 2005 PONTIAC SUNFIRE
All lights, radio, and chiming noises work, including the alarm. Ignition key turns, but no signs of the car starting. Battery and voltage levels are good. What could have caused the car to shut off while driving 65 mph on the highway? There was no prior indication of warning service lights in the dashboard. Oil levels are normal and the car has 1/2 a tank of fuel when it shut down. No overheating or failure problems prior to breakdown. A/C was on when the car stopped working.
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Tuesday, November 24th, 2009 AT 3:19 AM

1 Reply

Tiny
KASEKENNY
  • MECHANIC
  • 18,907 POSTS
It sounds like you are just losing ignition in the PCM which would be a crank sensor issue.

However, let's run through this guide which addresses this issue with more possible causes.

https://www.2carpros.com/articles/engine-stalls

I would suggest starting with the crank sensor and here is a guide that talks about this as well:

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

I am attaching the process below on how to replace this and do the relearn process.

Please run through this info and let us know what happens.

Thanks
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Tuesday, February 1st, 2022 AT 6:33 PM

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