1992 Ford F150

1992 FORD F-150
145,000 MILES • V8 • 4WD • AUTOMATIC
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RODSHELL01
  • MEMBER
  • 2 POSTS
when i turn switch on the fuel pump starts and does not turn off. truck will not start and check engine light stays on. replaced fuel pump relay and fuel filter. when fuel pump turns off like it should it starts but will turn off when driving. what do i ldo to fix
Sep 8, 2010 at 6:31 PM
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JACOBANDNICKOLAS
  • ✓ASE Certified Mechanic
  • 110,194 POSTS
  • ASE Certified Mechanic
Have you checked the fuel pressure regulator? Have you had the computer scanned since the check engine light is on?

Let me know.
Joe
Sep 8, 2020 at 12:55 PM
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RODSHELL01
  • MEMBER
  • 2 POSTS
changed fuel pressure regulator still doing same thing. when fuel pump cuts off runs great. what next...
Sep 8, 2020 at 12:55 PM
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JACOBANDNICKOLAS
  • ✓ASE Certified Mechanic
  • 110,194 POSTS
  • ASE Certified Mechanic
You need to have the pressure tested while driving. Have you had the computer scanned yet since the check engine light is on?
Sep 8, 2020 at 12:55 PM
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