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03-21-2011, 05:37 PM
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Learning to use the forums
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Join Date: Mar 2011
Posts: 4
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Fuel pump shut off
Just wondering if anyone has had their Ranger just shut down while driving. Mine has done it a few times in the last few months. Turns out its the fuel pump shut off switch located under the glove box. Just push the switch in and it fires right back up again and is fine. The question is, why is it doing it in the first place. It's an 05 with 33,000 mi. on it. Could be dangerous in the wrong situation. So far it has not been, thank God.
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03-21-2011, 05:43 PM
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Get off my lawn
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Join Date: Apr 2010
Posts: 1,059
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Re: Fuel pump shut off
If yours keeps doing it ... damn I was going to say replace it. But that might be like replacing a circuit breaker to fix a short.
Anyone know what sensor trips this switch or how this sytrem works? system I mean?
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08 4.0 Sport 4x4
Stock
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03-22-2011, 12:59 AM
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bullsnake 4x4 owner
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Join Date: Apr 2010
Posts: 271
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Re: Fuel pump shut off
It's called inertia saftey switch in case of a wreck or rollover the switch will trip and shutoff the positive electrical wire to the fuel pump so the pump will stop pumping fuel thru the pressurized fuel lines hopefully preventing a gas fire.All it's plugged into is that main electrical wire if you have your owners manual it will tell you how to properly reset the switch and that should fix your problem only other thing is check the plug going into it and the two wires make sure it's in good shape not burned or,melted or cracked, i had to redo the plug and wires due to age and getting hot n melted which caused the pickup not to run.
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1987 black custom xlt,ext. cab 4x4,military-surplus 2.9L, stock 3"lifted;5 speed auto trans w/ manual 4x4,borg-Warner-turbo transfer case,grinds out progressive aluminum mags w/goodyear wranglers; keyed entry alarm,duel 280w interface deckw/usb n bluetooth,jvc6x8s rear,jvc4"160wfront,crome bed side rails,tuff liner bed liner also blacked out headlights,limo black window tint. called the BULLSNAKE cuz its the best small-n-toughest 4x4 ford built!!
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03-22-2011, 04:04 PM
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Get off my lawn
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Join Date: Apr 2010
Posts: 1,059
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Re: Fuel pump shut off
Yeah. All that. I mean what makes it work and what can cause it to fail, the component itself or something that can send it a false signal?
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08 4.0 Sport 4x4
Stock
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03-22-2011, 04:21 PM
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Blinded by the light
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Join Date: Sep 2009
Posts: 7,674
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Re: Fuel pump shut off
No signals or anything high tech. It's just an inertia switch. It is a moving part, made of plastic. There is a ball and a magnet. When ball breaks free of the magnet, it trips the switch. They fail once in a while. Just replace it, problem solved.
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03-22-2011, 05:05 PM
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Learning to use the forums
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Join Date: Mar 2011
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Re: Fuel pump shut off
I have reset it according to the manual but looks like I'll have to get it replaced. I think I may still be under a warranty so I'll let them do it. The truck only has 33,000 on it so it should not be doing anything like that yet, but it is still 6 years old. I will check the wires to see what the deal is just to be sure. Thanks.
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03-22-2011, 05:29 PM
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Blinded by the light
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Join Date: Sep 2009
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Re: Fuel pump shut off
Warranty at 6yrs and 33k?
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03-22-2011, 06:38 PM
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Hazardous to Your Health!
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Join Date: Jan 2011
Posts: 9,992
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Re: Fuel pump shut off
is the fuel pump mounted to the wall? that was my issue when i was offroading...found out the hard way that it wasnt mounted...mounted it on the wall and never had any issues again
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Ford Ranger Edge Supercab, 2004 3.0 Auto, 2WD, 4.10 Axle 31x10.5x15 BF Goodrich All Terrain T/A KO's
My Truck Is My Mountain Bike's Ride!
Class III hitch, Rhino Bedliner, Almost Maxed T-Bar Crank, Tuff Country Add A Leaf, Custom Low Anchor Points, OEM ('99) Tow Hooks, Pro Comp Offroad Lights , Mustang Dome Light, Clear Corners, Slim Toolbox, Blinker Mod,Cargo Brake Light Mod,Expo Lighted Visors, Ultra Silverstar heads/fogs, Fog/high mod, Reverse/switched lights, Bike Fork Mounts
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03-23-2011, 03:13 AM
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Learning to use the forums
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Join Date: Mar 2011
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Re: Fuel pump shut off
Bought it used w/ 100,000 mi. warranty w/ an extra one for electrical probs. or whatever so it should still have it. The deal is you have to get it serviced at that dealer to keep the warranty.
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03-24-2011, 12:49 AM
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bullsnake 4x4 owner
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Join Date: Apr 2010
Posts: 271
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Re: Fuel pump shut off
sounds the best thing to do wile you have warranty cause otherwise you have to go to a junkyard to get anotherone unless you get lucky with an oddball parts place like carquest.
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1987 black custom xlt,ext. cab 4x4,military-surplus 2.9L, stock 3"lifted;5 speed auto trans w/ manual 4x4,borg-Warner-turbo transfer case,grinds out progressive aluminum mags w/goodyear wranglers; keyed entry alarm,duel 280w interface deckw/usb n bluetooth,jvc6x8s rear,jvc4"160wfront,crome bed side rails,tuff liner bed liner also blacked out headlights,limo black window tint. called the BULLSNAKE cuz its the best small-n-toughest 4x4 ford built!!
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