Troubleshooting a fuel pump
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Joined: Jan 2003
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Troubleshooting a fuel pump
It's a 91 f150 5.0 efi.
The fuel pump is working when bench tested, but won't work when connected at the tank.
If it won't work at the tank, is it a relay? What else could it be if it is not a relay? Where are the relays? I have a chilton's and it doesn't give the locations of the relays.
Thanks.
The fuel pump is working when bench tested, but won't work when connected at the tank.
If it won't work at the tank, is it a relay? What else could it be if it is not a relay? Where are the relays? I have a chilton's and it doesn't give the locations of the relays.
Thanks.
Hotshot
Joined: Aug 2002
Posts: 12,679
Likes: 15
From: BC, Canada
Troubleshooting a fuel pump
The fuel pump relay is the green one under the long, skinny black cover right behind the windshield washer fluid reservoir. The EEC relay is the brown one there. Either one could cause the problem you have. Also check the inertia switch which is located on the inside of the firewall behind the clutch pedal. It has a circuit breaker type push button switch on the top of it.
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