1990 Ford F-150 Q&A

1990 Ford F-150 Question: no power to fuel pump

just to day truck would not start fuel pump not getting power -
Answer 1
First check the fuse( i think it may be under the hood) then the relay. If these check out, there is an impact switch that cuts off the fuel pump in a roll over or high impact. It is in different locations,... frame, under floor mat, Etc. -
Answer 2
The inertia switch (incase you roll over) is under the dash and can go bad. You should be able to jump it out to see if that is the problem. I had close to the same problem my computer stopped sending a ground signal to the pump relay. -
Answer 3
fuel selector switch if duel tanks -
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