Question about 1991 Ford Explorer

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1991 Explorer fuel pump

No previous problems; started at work... died after brief run... cranks smoothly... no kick (fire)... pump and filter replaced... still cranks, no fire ... ???

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  • kwast Aug 27, 2008

    YES we have spark... NO to fuel pressure... driverside cargo panel, 3x6x1 black module with white tab (plunger?) does not move and red LED does not respond to any switch input... still we have crank but no fire...

  • kwast Aug 28, 2008

    have located the inertia-switch but the red button is depressed, appears normal... a group of (3) switch relays under hood (passenger side) click at the ON position, green relay clicks again 2-seconds later... engine now cranks normal and has fired briefly but is sporadic...

  • pontiacman71 Aug 30, 2008

    the same problem with pump. was running and died. checked relays and shut off switch no power to pump checked with light.

  • batmen20005 Oct 12, 2008

    my 91 did the same thing i was driving it and it died on me and i had to get it towed home how do i tell if its my pump

  • Anonymous Mar 29, 2009

    where is the sut off switch at on my 1991 ford explorer

  • Dave Feb 17, 2013

    Check at the battery on the neg side you should find a thick black wire coming from the neg battery post follow it to a connector located next to the starter sol. I think you will find it corroded. cut it out and rejoin the wire.

  • Anonymous Mar 16, 2014

    Will not run but will fire a few times

  • Anonymous Mar 29, 2014

    Replaced clogged fuel filter about amonth and a half ago.Car running great since. Now it cranks but will not start.



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So where is the shut off reset for the fuel pump on the 91 explorer? does anyone really know?

Posted on Oct 09, 2008

  • mdougla1 Oct 09, 2008

    where can i find the inertia switch and what does it look like?


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Check inertia switch located behind glove box.

Posted on Feb 17, 2013

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Has anyone checked the fuel pressure? Is there Spark at the Spark plugs? These are very important things that I need to know to help you.
The fuel pump shut off switch is in the rear luggage area on one of the sides under the plastic covering. Make sure that the plunger is pushed down and that there is power to the switch for only 2 seconds right after you turn on the ignition you do not have time to turn on the ignition and walk back the power shuts off in 2 seconds. you need two people if you have power TO the switch then check for power OUT of the switch in the very same way if you have power to and out and the pump does not run contact me at
Make sure you have spark plugs

Posted on Aug 27, 2008

  • Randy Harkins
    Randy Harkins Aug 27, 2008

    Ok I was mistaken the fuel pump shut off switch is up under the carpet under the heater on the passenger side it should have a small plunger and it needs to be down. Im so sorry I madee a mistake for another vehicle

    may I call you to help explain some things?

    my # is 253-235-0057

  • Randy Harkins
    Randy Harkins Aug 27, 2008

    Ok how ya doin?


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