Question about 1998 Ford Ranger

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How to check inertia switch 98 ranger . It has 3 wires

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  • Ford Master
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Three wires - the dark green with yellow stripe comes from the fuel pump relay ! When energized the relay sends battery voltage to the inertia switch via the dark green with yellow stripe wire . Inertia switch's don't go bad ! What's the problem ? fuel pump not working ? Test from the relay > Do you know what a relay is and how it works ? Watch this guy's video ! He shows chrysler first then ford . Do you know how to do electrical testing ! It doesn't matter that your inertia swich has three wires . Only two matter ! Fuel Pump Electrical Circuits Description and Operation

Posted on Dec 29, 2016

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Posted on Jan 02, 2017

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SOURCE: Is there a way to remove inertia fuel cutoff on a ranger?

It is an inertia switch, meaning that it works when there is a sudden change in inertia. The switch is closed by default and opens in an accident or rollover. You can easily remove this safety feature from your system by simply unhooking the connector and jumping across the 2 terminals with a piece of wire. But I strongly advise against this. This is a $50 dealer part that is easily replaced if it is bad. It is a great safety feature that may save your life.

Posted on Dec 17, 2009

  • 1 Answer

SOURCE: Can you remove an inertia fuel cutoff switch on a 06 ranger?

Who cares if it is a safety system? my 05 won't even make it out of the driveway without the thing going off and killing my truck. All because I hit a pothole. If you know how, please tell us. I took it into the shop and the mechanic got 2 new switches from Ford and neither one fit. So either I am going to have spend another $1000 dollars because you have a moral stick up your you know what, or you could help us out.

Posted on Apr 08, 2010

  • 205 Answers

SOURCE: I just purchased a safety

If you dont change the wire and something is wrong,they wont give you warranty on the part.

Posted on Sep 24, 2010

  • 2428 Answers

SOURCE: 98 Ford Ranger 2.5 liter

Iwould check the fuel pump next for 12 volts . If you have it there then you need to look at the fuel pressure regulator. The way this works is one side hooks to engine manifold vacuum and the other is pressure from the fuel pump and supplys the injectors no electrical involved but if the diafram goes or leaks you would get less or no fuel to the injectors . Its kind of hard to say for sure with out seeing it but it sounds like a no fuel issue it could be the pump so you need to investigate some more to find out if it is electrical or fuel related good luck with it

Posted on Mar 09, 2011

  • 62 Answers

SOURCE: Unable to locate the inertia pump on 98 ford

Fuel pump relay is more common fault than pump or inertia switch.

Posted on May 28, 2012

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1 Answer

What 2 pins are the 12 volts pins on a 4 pin connector to the fuel pump 2002 ranger, also the 2 pins for the sensor. can you should a picture.


Two of those wires are for the sending unit for the fuel gauge .The pink with black stripe is B+ to fuel pump , black is ground for fuel pump other two are for fuel sending unit . There is all so a relay in the under hood fuse box for fuel pump an fuel shut off inertia switch . Before messing with fuel pump wiring check if inertia switch is tripped , Check out this videos on fuel pump circuits . Fuel Pump Electrical Circuits Description and Operation

Mar 02, 2016 | 2002 Ford Ranger

1 Answer

Need to know the wiring color for gas pump for 1986 ford ranger


Hello! Orange/Light Blue wire from Fuel Pump Relay to the Inertia Switch...Other side of Inertia Switch is Pink/Black wire that connects to the Pump...Other side of Pump is Black to chassis ground...

Guru..................saailer










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Nov 20, 2010 | 1986 Ford Ranger 2WD

1 Answer

Ford ranger 2004 there is no elect.going to pump. I changed the inertia switch --pump still not running.what should I do next ?


Did you check the relay? Power goes from ignition switch to relay to pump. Where B+ stops is your problem.
Run a pair of jumper wire from battery to pump just to see if pump works. If it buzzes and runs its ok.
Then you definately know its something in the control circuit.

May 09, 2010 | 2004 Ford Ranger

2 Answers

Unable to locate the inertia pump on 98 ford ranger


Your vehicle has an inertia switch, which is located on the tow board to the right of the transmission pump. Usually the fuel pump does not shut off except in the case of an accident but you can check it anyway. Being fuel injected, your fuel pump is probably in the gas tank and if there is no power to the wires coming out of the tank, you probably have a bad fuel pump

Apr 17, 2010 | 1987 Ford Ranger

1 Answer

Ford ranger 2004 there is no elect.going to pump. I changed the inertia switch --pump still not running.what should I do next ?


Are you getting power to the inertia switch? I would check the fuse and relay for the fuel pump.

Mar 17, 2010 | 2004 Ford Ranger

1 Answer

Is there a way to remove inertia fuel cutoff on a ranger?


It is an inertia switch, meaning that it works when there is a sudden change in inertia. The switch is closed by default and opens in an accident or rollover. You can easily remove this safety feature from your system by simply unhooking the connector and jumping across the 2 terminals with a piece of wire. But I strongly advise against this. This is a $50 dealer part that is easily replaced if it is bad. It is a great safety feature that may save your life.

Dec 17, 2009 | 1992 Dodge Dakota

1 Answer

No power to the fuel pump


Your inertia switch is located in the right hand kick panel at the top, hard to reach with panel on, you can check it to see that it is in fact pushed in, but they sometimes burn out in this position, try using a jumper wire across the connections of the inertia switch and see if your pump runs, if so replace the switch, try the same for your ranger. Hope this helps, let me know

Dec 09, 2009 | 2004 Ford F150

1 Answer

I have a 2003 Ford Ranger and just replaced inertia switch & relay and it still wont start. where is the fuse under the hood to do with the fuel?


Check the wire at the inertia switch with a test light,If there is not voltage check fuse #23 a 20amp fuse in the battery junction box located in the left rear of the engine compartment.If there is power at the inertia switch this is the last step before the fuel pump so suspect a bad pump or broken wire:)

Aug 28, 2009 | Ford Ranger Cars & Trucks

1 Answer

05 ford ranger 3.0 xlt fuel pump???


I had this same issue. There is an inertia switch located below glove box. Mine went bad. Here is what I wrote to another person with the similar problem:

I have a 2005 Ranger Edge. I had the same problem. I did two things. First I replaced the fuel pump and it worked again for about 2 months. Then it stopped working again so I replaced the inertia switch with a new one from the Ford Dealership. It worked again for about a month. Than it stopped again, so I replaced the wiring that goes from the inertia switch to the main box on the bottom right passenger side. I also put the inertia switch inside the casing on the lower right so it couldn't be kicked. It has been working for 2 weeks now. I hope nothing else happens.

On another note, I had another electrical problem. My speedometer cluster stopped working and my mechanic found loose wires rubbing against metal on the inside. I think the electrical components on these Ford Rangers are just cheaply made. That is the only thing to check for you now. If it isn't the fuel pump or the inertia switch, just check all the wiring from fuel pump to inertia switch to make sure it is all done correctly. Also check all fuses for fuel pump/inertia switches.

Sometimes I say I and mean a mechanic, I am not a car expert, but would like to be.

Mar 31, 2009 | 2005 Ford Ranger

1 Answer

Inertia Switch - 2005 Ranger


I have a 2005 Ranger Edge. I had the same problem. I did two things. First I replaced the fuel pump and it worked again for about 2 months. Then it stopped working again so I replaced the inertia switch with a new one from the Ford Dealership. It worked again for about a month. Than it stopped again, so I replaced the wiring that goes from the inertia switch to the main box on the bottom right passenger side. I also put the inertia switch inside the casing on the lower right so it couldn't be kicked. It has been working for 2 weeks now. I hope nothing else happens.

On another note, I had another electrical problem. My speedometer cluster stopped working and my mechanic found loose wires rubbing against metal on the inside. I think the electrical components on these Ford Rangers are just cheaply made. That is the only thing to check for you now. If it isn't the fuel pump or the inertia switch, just check all the wiring from fuel pump to inertia switch to make sure it is all done correctly. Also check all fuses for fuel pump/inertia switches.

Sometimes I say I and mean a mechanic, I am not a car expert, but would like to be.

Mar 30, 2009 | 2005 Ford Ranger

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