Bob urz 2009-07-10 03:50:56
where is the fuel pump relay on a 1988 f150?
does the signal flow go from fuel pump relay to
inertia switch to fuel pump?
Trying to help our my brother in law
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Ripcord 2009-07-10 03:51:04
Had the same problem with a 91 F150. After tracing the wires and relays for
2 days it turn out to be the computer.
Tom 2009-07-10 03:51:23
the fuel pump relay is on the driver side fender, near the hood hinge. there
are 2 relays there. one is the fuel pump relay, the other one is the eec
Mombu 2009-07-10 07:02:36
Hello, The fuel pump relay gets current from the inertia switch, the
inertia switch on my 1991 Ford f-150 was on the firewall under the
carpet, near the clutch pedal. It has been reported that the
electrical connections can be either burnt and or corroded, and/or
both at the switch, my truck had neither. I would reccomend replacing
both the fuel pump relay and the computer relay at the same time. I
replaced just the fuel pump relay, the truck ran better, but not
completely. I then replaced the computer relay. Then bingo, all is
good. Good Luck!