Will not stay running

Tiny
DERRICK FORMAN
  • MEMBER
  • 1989 GMC SIERRA
  • 5.0L
  • V8
  • 4WD
  • AUTOMATIC
  • 265,000 MILES
The truck shut off plowing. So I replace the ignition module and the plug wires and the coil. It started then shut off and will not start.
Tuesday, February 23rd, 2021 AT 5:56 PM

1 Reply

Tiny
KASEKENNY
  • MECHANIC
  • 18,907 POSTS
Does it continue to start and restart every time you try to start it? If so ,we need to check fuel pressure and make sure it is not bleeding off as soon as the truck starts.

Here is a guide that helps with this:

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

Also, we need to make sure the air flow rate is correct. I attached the process below that will help with this.

Let's run through this material and we can go from there. Thanks
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Wednesday, February 24th, 2021 AT 7:00 PM

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