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Truck not starting

Tiny
STU2050
  • MEMBER
  • 2004 FORD F-150
  • 5.4L
  • 4WD
  • AUTOMATIC
  • 218,000 MILES
Drove my truck Saturday with no problems let it sit on Sunday then went to start it on Monday and the battery was dead. So I boosted it, but it won’t start it cranks fine and I can hear the fuel pump kick in but it won’t start and it shows I have no fuel. Today Wednesday I put the key in and turned it to on position and it said I had half a tank of fuel, but when I boosted it again to try to start it it just cranked but wouldn’t start and it says again low fuel. Does anyone know why?
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Wednesday, January 2nd, 2019 AT 2:12 PM

1 Reply

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

First thing I suggest to check is the fuel pressure. You might have a weak/failing fuel pump.If you don't have access to a fuel pressure tester your local auto parts store has a tool loaner program and can rent you one. Here is a tutorial showing what is involved:

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

The specification for your truck is to be 35-45 p.si. with key on engine running.Hope this helps and thanks for using 2CarPros.
Danny-
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Monday, May 31st, 2021 AT 12:39 PM

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