1986 Ford F-100 no fuel pumping to engine

1986 FORD F-100
217,000 MILES • V8 • 4WD • AUTOMATIC
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MATASAC145
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  • 2 POSTS
i am getting power to my high pressure fuel pump but its not sending fuel to engine what could be the problem
Feb 28, 2010 at 5:52 PM
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OBXAUTOMEDIC
  • ✓ASE Certified Mechanic
  • 3,711 POSTS
  • ASE Certified Mechanic
Hello,

Ok, you are getting power to it. Does it run when key it turned to on position?

If High pressure pump is working then need to check low pressure pomp that is in the tank.


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Feb 28, 2010 at 6:10 PM
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MATASAC145
  • MEMBER
  • 2 POSTS
it only worked with a jumper wire
Feb 28, 2010 at 6:28 PM
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OBXAUTOMEDIC
  • ✓ASE Certified Mechanic
  • 3,711 POSTS
  • ASE Certified Mechanic
Ok, in the engine compartment on the driver side firewall there is a Fuel Pump Cut-Off Relay. Check out link below for testing....

https://www.2carpros.com/how_to/how_do_i_check_a_relay.htm


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Mar 1, 2010 at 8:23 PM
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