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.
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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