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Truck starts but does not stay running

Tiny
JCOOKE1994
  • MEMBER
  • 2004 FORD F-250
  • 5.4L
  • V8
  • 200,000 MILES
I replaced fuel pump fuel filter and still does not build fuel pressure. I checked the pump cut off it’s working fine but I’m at a loss of what else. Someone told me possibly a ground, but I don’t know what ground goes to the pump.
Wednesday, July 8th, 2020 AT 4:43 PM

3 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,179 POSTS
Hi,

Have you tried to reset the inertia shut off switch? It should be located on the passenger side behind the kick panel. See the attached pic.

As far as a ground, the ground path is provided via the power-train control module.

Let me know about the inertia switch. Also, let me know if you have checked any relays.

Joe
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Wednesday, July 8th, 2020 AT 7:24 PM
Tiny
JCOOKE1994
  • MEMBER
  • 2 POSTS
Yes, switch is fine and relays are good and I have no power to rear lights.
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Thursday, July 9th, 2020 AT 11:12 AM
Tiny
4DRTOM
  • MECHANIC
  • 467 POSTS
This is Tom I would like to chime in. Did you change the pump yourself and did the rear lights work before the pump was changed? And it currently will start but just for a second then it shuts down?
Tom
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Thursday, July 9th, 2020 AT 9:19 PM

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