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I need to find the fuelpump relay switch - Avalanche Chevrolet Cars & Trucks

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It is located in the fuse box under the hood on the fender well

Posted on Jul 22, 2009

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Posted on Jan 02, 2017

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NEED TO KNOW WHERE THE FUEL PUMP RELAY SWITCH IS FOR A 1998 CHEVY S10 TRUCK...


For the 1998 s10 theres no fuelpump switch, there is a fuelpump relay. the relay is in the engine compartment inside the fuse/relay box. the relay will be labeled on the inside cover of the fuse/relay box cover. besides the relay the only other problem for a fuelpump not working on these trucks is the fuelpump is bad or the wiring connector to the pump is bad.

Aug 27, 2011 | Chevrolet Chevy Cars & Trucks

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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

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We replaced a bad fuel pump on 06 escaped limited. There is no power to fuel pump. we have checked all fuses, relays and reset switch. Where else could the problem be?


Hello, You might try a Relay that controls the PCM or ECU. They would be in the Powerbox where the fuelpump Relay is. Some of the Relays are identical so you could buy 1 and it would be a backup part for several.

You should also look at the other things the Ignition switch turns on in the Run position. Does the radio work, the fan motor, or turn signals? If they do not work look at replacing your Ignition switch.

The PCM and ECU get their power indirectly from the Ignition switch. When all have power they will connect to the fuelpump Relay. Since you said you checked the Relays, I am taking that to mean you checked the fuelpump Relay only. Many times people do not know that there are several relays which all need to connect to get the fuelpump to run. When you determine the Ignition switch is good, then the ECU and PCM relays should be getting power. Have you tested the fuelpressure Regulator? It needs to demand fuel from the pump.

The fuelpump relay depends on the ECU or PCM relays to work. One of the 2 relays may be bad and preventing the fuelpump relay from working. When you get to trouble shooting the terminals you can get wiring diagrams online or the info may be in a book at the Autoparts store.

One of the benefits of using a Dealer with the hardest problems is the tools they have. They have machines with connectors that match every wiring connector inside your car. If one section is unplugged they can test the wire loom section by section until the problem is found.

I hope you have found my solution to be very helpful and that I have brought up a few new areas to try. If trying different parts does not help, you are left with a wire by wire battle to fix this and the Dealers' better tools may make more sense.

Apr 03, 2011 | 2006 Ford Escape

1 Answer

I have a 2004 freestar that wont start.changed fuel pump still wont start.pump wont run!


Hello, If you have not checked your Inertia switch it shuts off the fuelpump and may need to be Reset. It should be in the RH side of the jack compartment. You just push and hold a button on the switch and then the fuelpump should work.

The Inertia switch is a safety device and can trigger when a door or hatch is closed hard enough to simulate a crash. You also can have a Relay in the Powerbox which may be labeled. Try the Inertia switch first and if it does not help, then change the Fuelpump Relay.

Feb 26, 2011 | 2004 Ford Freestar

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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

1 Answer

Why wont my car start after replacing the fuel pump


Do you hear the fuelpump running? Check the Inertia switch under the right front passengers kickpanel. There is a button to press and it will reset.

This is a safety switch for impacts and when the fuelpump was disconnected, it can sometimes trip.

Also, when you diagnosed a bad fuelpump, there are Relays and fuses which supply the power. Your original problem could have been a bad relay.

Oct 15, 2010 | 2000 Ford Focus

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

Fuel pump not getting power checked fuses and relay and fuel pump is relay board bad


Check in the trunk on the drivers side for an opening in the carpet. There can be 2 switches and 1 is for the Air ride and the other is a fuelpump safety switch. The safety switch is called an "Inertia switch" and it has a push button for Reset. Just hold the button down for 3 seconds and it will reset.

Then turn on the Ignition and you should hear the fuelpump run for a few seconds. It should be ready to start. If the Inertia switch was tripped it is made to kill the fuelpump upon impact. Slamming a door or the trucklid can make it kill the fuelpump.

Jul 25, 2010 | 2003 Mercury Grand Marquis

1 Answer

Truck starts runs for a second shuts off .


The fuelpump is primed by the oil pressure switch.When the fuel pressure reaches normal PSI the computer shuts that pressure switch off and turns thepoweron to the fuelpump relay.You have a bad fuel pump relay

Jun 02, 2010 | 1994 Mazda 2WD B Series Pickup

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