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What the hack is THIS?

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Old Aug 11, 2019 | 02:31 PM
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What the hack is THIS?

2014 F250 King Ranch 6.7 Diesel. I was searching for an appropriate place to pass a hotwire from the cab to the engine compartment when I saw this on the passenger-side dashboard. A little door with a "no fuel" icon. When I opened it, it looks like there's a little valve of some kind in there. See photos attached, zooming in from far out to close up.

Normal view

Zoomed in to door

Door open looking inside
 
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Old Aug 11, 2019 | 02:53 PM
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I can't see in there but I'll take a stab...could it be the reset for the fuel pump--the one that would be tripped in a major impact? or is that just on gas vehicles?
 
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Old Aug 11, 2019 | 03:03 PM
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Well, I didn't even know such a thing existed. But like an idiot, I stuck my finger in there and pushed the top of it and heard a CLICK. So I guess I should go out there and start it and drive it around the block and make sure I'm not running out of fuel.
 
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Old Aug 11, 2019 | 03:37 PM
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Yes - that’s the fuel reset. If you ever can’t start it after a hard hit, check to see if that tripped and reset it.


https://www.ford-trucks.com/forums/1...et-button.html
 
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Old Aug 11, 2019 | 04:04 PM
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Originally Posted by seville009
Yes - that’s the fuel reset. If you ever can’t start it after a hard hit, check to see if that tripped and reset it.


https://www.ford-trucks.com/forums/1...et-button.html
But what if I hit the switch when there was no reason to? THAT's the question I have now. LOL.
 
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Old Aug 11, 2019 | 04:45 PM
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Originally Posted by K0IRL
But what if I hit the switch when there was no reason to? THAT's the question I have now. LOL.
Never tried it, but shouldn’t hurt anything. My guess is it might click each time you press it as a tactile response, but will obviously only reset the button if it’s actually popped up
 
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Old Aug 11, 2019 | 05:53 PM
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All I could think of was my granddad telling me, "Look, don't go pushing buttons that you don't know what they do." I've even said that to my son and even my employees.

Here I am, 60 f---ing years old and haven't learned a thing.

Thanks to all that posted
 
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Old Aug 11, 2019 | 07:03 PM
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When it needs to be rest, the button will pop up. An impact, from something like a collision will cause it to trip.

I'm going to move this over to the Super Duty forum.
 
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Old Aug 11, 2019 | 10:16 PM
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That is the fuel inertia switch that has been present on every Ford vehicle equipped with fuel injection utilizing an electric fuel pump since the 80s, designed to open the fuel pump circuit during impact or collision.
 
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Old Aug 12, 2019 | 06:10 AM
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That is s a much better location and identification than the older vehicles have! Be thankful. It is the first thing to check if your truck has no fuel pressure.
 
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Old Aug 12, 2019 | 08:14 AM
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Used to tap the support in the trunk of our town car when unloading luggage during traveling. Kind of a fuel shut off theft prevention. I believe the newer cars and trucks illuminate warning lamp when tripped.
 
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Old Aug 12, 2019 | 10:05 AM
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Originally Posted by K0IRL
But what if I hit the switch when there was no reason to? THAT's the question I have now. LOL.
It only resets the fuel pump shut off when it actually got shut off. When the shut off didn't shut off, pushing the button will do NOTHING.

And when a fuel pump does get shut off, you only get seconds of run time. You will know for sure if there is no pump running. This aint your grandpa's boatmotor that runs for 20 minutes after shutting off the fuel.
 
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Old Aug 12, 2019 | 02:00 PM
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Originally Posted by geekwithoutacause
This aint your grandpa's boatmotor that runs for 20 minutes after shutting off the fuel.
LOL. True.
 
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