While driving I turn on the A/C engine lost power, shut off and cranks but does not start

Tiny
SILENT001
  • MEMBER
  • 2007 DODGE MAGNUM
  • 3.5L
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 167,000 MILES
Hi, I was driving my vehicle listed above and when I turned the A/C on it lost power and then turned off. I tried to start it again and it just cranks but no start.
Tuesday, August 3rd, 2021 AT 1:19 PM

1 Reply

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Good afternoon,

When you crank it over, does the tachometer show RPM while cranking? Trying to see if the crank sensor is working.

https://www.2carpros.com/articles/how-a-crank-shaft-angle-sensor-works

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

https://www.2carpros.com/articles/crankshaft-angle-sensor-replacement

Can you hear the fuel run for 2 seconds with the key on?

https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator

I would also check the compression to be sure the timing did not change.

https://www.2carpros.com/articles/how-to-test-engine-compression

Roy
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Tuesday, August 3rd, 2021 AT 2:44 PM

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