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



, 4.9L 6 Cylinder, Burns Flat, OK, July 05, 2010, 20:02

just to day truck would not start fuel pump not getting power

3 Answers
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  • Medium-star Best Answer
    Visitor, July 12, 2010, 01:17

    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.

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  • Answer #2

    September 17, 2010, 10:07

    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.

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  • Answer #3

    Visitor, October 09, 2010, 17:21

    fuel selector switch if duel tanks

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