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Cranking but not starting

Tiny
SHAY CRAWFORD
  • MEMBER
  • 1999 GMC YUKON
  • 5.7L
  • V8
  • 2WD
  • AUTOMATIC
  • 215,000 MILES
Friday my car stalled while I was in my driveway then it wouldn't start up. Once it shut off while I was in the middle of the road, so I had to have it towed. Thought it was the fuel pump but it still works. Then thought it was the fuel filter so I replaced that, then thought it was my battery, changed that and it still won't start. It's acting like it's not getting enough fuel to the motor.
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Monday, September 9th, 2019 AT 7:29 PM

1 Reply

Tiny
DANNY L
  • MECHANIC
  • 5,648 POSTS
Hello, I'm Danny.

It sounds like it might be a weak/faulty fuel pump even though you hear working. You should first test the fuel pressure.If you don't have access to a tester your local auto parts store have a tool loaner program and can rent you one. Here is a tutorial showing what is involved on how to do so:

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

The fuel pressure for your truck with the key on , engine off should be 60-66 p.s.i. Hope this helps and thanks for using 2CarPros.

Danny-
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Monday, September 9th, 2019 AT 7:48 PM

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