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Will not start

Tiny
ICED
  • MEMBER
  • 2002 FORD F-250
  • 5.4L
  • V8
  • 4WD
  • AUTOMATIC
  • 150,000 MILES
Installed fuel pump and still will not start. I was told the relay is integrated into fuse box under dash and was told fuse box will need replaced.
Sunday, July 15th, 2018 AT 3:29 AM

3 Replies

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

Have you checked the fuel pressure after installing the pump? I have attached a link how to test. Most auto parts stores have a tool loaner program to loan/rent the tester. Your vehicle should have 35-45 PSI. Hope this helps and feel free to ask any questions if needed. I can also include specifications of diagrams if needed. Thanks for using 2CarPros.
Danny-

https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator
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Sunday, July 15th, 2018 AT 4:50 AM
Tiny
ICED
  • MEMBER
  • 2 POSTS
All was checked and still no starting.
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Sunday, July 15th, 2018 AT 5:03 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 43,072 POSTS
There is a fuel pump relay located in the fuse panel under the hood. Here is a guide to help you test it:

https://www.2carpros.com/articles/how-to-check-an-electrical-relay-and-wiring-control-circuit

Check out the diagrams (below). Please let us know what happens.

Cheers, Ken
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Tuesday, July 17th, 2018 AT 2:34 PM

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