Question about 1991 Ford Explorer

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Fuelpump continues to run with key off..is it relay switch or emergency shutoff switch

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Posted on Jan 02, 2017

  • 18 Answers

SOURCE: No power in fuel pump wiring

If you have the ignition in the on position remeber the fuel pump only runs for a couple of seconds unless the car is activley being started

Posted on Nov 27, 2008

keemo68
  • 1263 Answers

SOURCE: i have a 1984 mustang 5.0 gt convertible.its

if your vehicle does have a cut off switch it would be located in the trunk behind the trunk lining on either rear wheel fender well. also not only is there a relay for the fuel pump but also a fuse as well. make sure the 10 amp fuse(red) is still good. it should be in either the power distribution box under the hood or the fuse block under the dash on the drivers side..also there might be a junction box underneath the vehicle where there is a connection loose. if all else fails check the main wire harness leading from distribution box .

Posted on Apr 18, 2009

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1 Answer

1990 Cat 426B turbo backhoe Turn key to start runs until I let go of key. And suck life out of battery after like 5 revolutions Replaced:starter,cables,battery,ignition key switch,& relays?


Hi Rick:
This should be a diesel engine so if it starts when the key is turned to the start but stops when the key is released, the fuel is being shut off since a diesel will continue to run as long as it is getting fuel.
Something is wrong with the fuel shutoff solenoid or the switch connection that is providing power to it.
I'd be trouble shooting the intended wiring function with a voltmeter or continuity meter.
Cheers

Apr 05, 2016 | Cars & Trucks

1 Answer

Looking for emergency fuel shut off for 96 Olds Aurora


Only Ford products have inertia switches.
The relay is powered by a fuse and controlled by the computer.

Jul 28, 2012 | 1996 Oldsmobile Aurora

2 Answers

I have a 2006 ford f350 and the fuel pump isnt working is there a shutoff switch


Yes. The switch is usually located around the passengers kickpanel. There should be an access hole to press the button on the switch. Sometimes the part is just above the carpet and sometimes you have to remove the kickpanel. If you are unable to find this switch on the passengers side,then look on the drivers side kickpanel.

Under the hood is a Powerbox. The shutoff switch (inertia switch) gets its power from the Fuel pump Relay after the Ignition is turned on. If resetting the shutoff switch does not help, your fuel pump Relay may be bad. On some Ford models, the horn Relay is the same Relay used for the fuel pump. This would allow you to swap and test before buying a new Relay.

Jul 13, 2011 | 2006 Ford F 350 Super Duty

1 Answer

I do not get any electric power on the feul pump, i have tried to activate the emergency shut off valve but still no power. i have taken electrical messurment at the switch but there was no power either.


Hello, You should have a fuelpump Relay in the Powerbox under the hood. The power goes through this Relay, then it has a fuse in the fusebox inside the car, and the Inertia sensor is next and then the fuelpump. If you have no power going to the Inertia switch, then you may have a bad fuse or a bad Relay.

Check with Autozone, Oreillys, or Advance autoparts for the correct Relay. Ford uses the same part for several jobs and you need to replace the bad Relay. Sometimes you can just switch identical Relays to find the bad one. Autozone is pretty good for having diagrams. A bad fuse would mean something went bad either on the Relay side or the fuelpump side of the fuse.

May 03, 2011 | Ford Focus Cars & Trucks

1 Answer

Truck acts like it wants to start but it won't turn over, changed fuel filter. now i need to find out where and what to check out next. thanks in advance:)


The Inertia safety switch may have tripped on you. Depending on which Model of Ford you have, the Inertia switch is in different places. The most common place is at the top of the Drivers kick panel or the Passengers kick panel. Sometimes a hole is provided to allow a finger to pass through to press a button on top of the switch. On other Models, the kick panel must be removed. Yet a third place would be behind the glovebox around the computer.

When you turn the Key to Run, a short burst of the fuelpump will pressurize the system and then it waits until the engine starts, then continues running. You should hear the fuelpump run. When the button on the Inertia switch is pressed it makes a circuit.

Your truck should also have a Relay for the fuelpump and the Ignition. If the Inertia switch reset does not help, one of the Relays may be bad. Check whether you have spark at the plugs and go from there. If you have spark, you may not have fuel and need a fuelpump Relay.

I hope my solution is helpful to you.

Jan 05, 2011 | Ford F-150 Cars & Trucks

2 Answers

I have replaced the fuel pump amongst a lot of other things. I can spray gas or starting fluid in the throtal body and it will run rough untill the fumes ware out. Its a 1995 ford explorer 4x4 xlt


If you hear the fuelpump operate the first 1 or 2 seconds when the key is turned to RUN position, the fuelpump is working. If you do not hear the fuelpump run, check the Inertia switch which should be in the side panel of the rear cargo area. If you have an owners manual check for the Inertia switch location.

To reset the Inertia switch, hold the button on it for 2-3 seconds. You should now hear the pump run. You may also have a fuelpump relay under the hood in one of the Powerboxes. The Powerbox may have a fusible link from the Battery. When the fusible link is OK and the Pump Relay is OK, there is a fuse in the Fuse panel. Then finally the Ignition switch will trip the Pump relay. As power flows through the wire to the fuelpump the Inertia switch can break the power connection.

So you have 5 powerpoints before the fuelpump will work. Fusible link, Pump Relay, Fuse Panel, Ignition Switch,and Inertia switch. These must all work before the fuelpump can run.

Aug 14, 2010 | 1995 Ford Explorer

1 Answer

98 240sx with rear impact, emergency fuel shutoff?


Hi you need to buy a new fuel cut off relay and replace this part their is no switch to press to turn the fuel back on like other cars it is the relay that needs replacing.

Aug 16, 2009 | 1998 Nissan 240SX

1 Answer

No power in fuel pump wiring


If you have the ignition in the on position remeber the fuel pump only runs for a couple of seconds unless the car is activley being started

Nov 27, 2008 | 1996 Ford Ranger SuperCab

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