1995 Ford F-150 Fuel pump feed fuse blows

Tiny
PADRE
  • MEMBER
  • 1995 FORD F-150
  • 6 CYL
  • 2WD
  • MANUAL
  • 66,800 MILES
My fuel pump feed fuse blows after starting my truck. If I have the tank selector swith set to the rear tank and turn the key to the run position, the pump will activate, I can hear the hum of the pump, and the fuel line will have pressure in it. If I then start the truck with the fuel tank selector switch in either front or rear tank position, it will run for about 15 or 20 seconds and the fuel pump fuse will blow. This tells me the problem is in the circuitry before the tanks, as the problem occurs regardless of where the tank selector switch is set. If I never start the truck, I can hear the pump motor hum each time I turn the key to the run position. I have changed the fuel pump in the rear tank, which is the only tank that has ever worked in this truck since I have had it. Is this a wire problem or a PCM problem? Any ideas? Thanks.
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Saturday, April 5th, 2008 AT 2:16 PM

1 Reply

Tiny
RUMBLEBEE
  • MEMBER
Have you checked the front lift pump to see if it is the problem? It runs with both fuel tanks. Iwould bypass the fuel pump relay with the lift pump disconnected and see if the fuse still blows.
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Saturday, April 5th, 2008 AT 2:50 PM

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