Question about 1981 Ford F 100

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Ford F100 Truck Fuel Pump

Is there a electronic fuel pump? And if so where is it located?

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To my knowledge, most Ford models of this year uses a mechanical (diaphragm type) fuel pump not electrical. However, it is possible to install an aftermarket electric fuel pump in lieu of the mechanical pump. If this was done to your Ford F 100, it would either be either near the carbs or the fuel tank, follow the fuel line.

Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.

Good luck and kind regards.

Thank you for using FixYa.

Posted on Jul 25, 2008

  • Louie  Role
    Louie Role Jul 25, 2008

    Hi again,

    Appreciate the "Ask Me". With your indulgence, I would be re-posting this in your original problem/post here.

    To my understanding a "loud continuous clicking sound" indicates a relay or solenoid opening and closing, whereas an electric fuel pump would produce a low tone whirring sound. This might be of help, image of a typical factory installed mechanical fuel pump:

    In the possibility that for some reason your particular model has an
    electric fuel pump, then it would perhaps look something like this:


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Ford F100 should have a mechanical fuel pump unless someone has installed an electric.

Posted on Jul 25, 2008

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