1990 Ford F-150 fuel pump continue to run

Tiny
7777
  • MEMBER
  • 1990 FORD F-150
  • 6 CYL
  • 2WD
  • MANUAL
  • 130,000 MILES
Fuel pump will not shut off for several minutes, with the key in the run position and when it does stop running, the truck starts and runs fine. No codes and it does not matter what tank it is running off.
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Saturday, July 24th, 2010 AT 6:22 PM

2 Replies

Tiny
RASMATAZ
  • MEMBER
Check and test the fuel pump relay could be sticking
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Saturday, July 24th, 2010 AT 6:27 PM
Tiny
7777
  • MEMBER
Sorry I did not get back sooner. I replaced the fuel pump relay. Same problem. The pump continues to run but the truck will not start. I did take the fuel line off on the engine side of the filter and both tanks do pump fuel. The system just acts like it is taking the fuel from the tanks and just return the fuel back to the tanks without pressurizing the fuel system.
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Wednesday, July 28th, 2010 AT 2:02 PM

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