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Truck suddenly shuts off while driving

Tiny
ACOWART
  • MEMBER
  • 2000 GMC C2500
  • 5.7L
  • V8
  • 4WD
  • AUTOMATIC
  • 175,000 MILES
Past couple times I've driven my truck, it will run perfectly fine, start fine, but after about five or so minutes all the gauges peg out and the truck just shuts off as if I've turned the key off. I can shift it to neutral and it fires back up no problem. There is no check engine light, and has no other problems whatsoever. It just shuts off randomly after five minutes.
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Saturday, May 25th, 2019 AT 7:10 AM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,513 POSTS
The gauges pegging is telling us a voltage issue. Lets start by checking the alternator and battery cable connections. Here are two guides to help us:

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

and

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

Please run down these guides and report back.
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Sunday, May 26th, 2019 AT 2:08 PM

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