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ECM keeps blowing, headlights stop working, turn the headlights on and the truck shut off?

Tiny
CHRISTOPHER ANDERSON
  • MEMBER
  • 1991 CHEVROLET S-10
  • 2.8L
  • V6
  • 2WD
  • MANUAL
  • 300,000 MILES
I keep having electricity problems, ECM keeps blowing, headlights stop working. I got it running yesterday and when I tried to turn on the headlights on it cut off and won’t start back up. All fuses are good. Please help.
Wednesday, October 27th, 2021 AT 7:30 PM

1 Reply

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

I would first test the battery and make sure it can handle loads. If the battery is low, it will shut off the engine when the headlight is commanded on.

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

https://www.2carpros.com/articles/everything-goes-dead-when-engine-is-cranked

https://www.2carpros.com/articles/symptoms-of-a-bad-car-battery

Do this test and let me know the results. Power is always the first thing we check when in this situation.

Roy
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Thursday, October 28th, 2021 AT 3:06 AM

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