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fuel theft or gauge problem

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Old Jan 7, 2010 | 05:42 PM
  #1  
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GwarForAll1021
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fuel theft or gauge problem

today i went to work with less than 1/4th of a tank of gas
when i got off i was under empty

its done this before i just ignored it didnt think much of it

i was told these trucks cant be siphoned i dont know if thats true.

either way this almost had me pushing my truck to the nearest gas station thats not close.

this needs to be fixed
 
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Old Jan 7, 2010 | 05:54 PM
  #2  
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Wilber15
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From: Duluth, MN
You problably have a short in your sending unit in the tank. Known concern with these trucks. If you get it scanned, it should throw a code for Fuel Sending Unit A circuit fault. You can replace just the fuel level sending unit, but depending on miles on your truck, I would just put a whole pump/sending unit in.
 
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Old Jan 7, 2010 | 06:50 PM
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no codes ... yet
 
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Old Jan 7, 2010 | 07:01 PM
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Take it to the gas station and fill it up. If it takes a full tank - you know it was stolen. If not, looks like you do have a problem with the sending unit. When the tank is full, reset the trip odometer. At least then you can drive and have an idea how much gas you have.
 
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Old Jan 7, 2010 | 10:03 PM
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Wilber15
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You won't have a check engine light on for this code, you'll have to connect with a scan tool to the pcm and pull the code yourself.....
 
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Old Jan 8, 2010 | 06:25 AM
  #6  
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My 04 does that sometimes. When I'm driving it says I have a 1/4 tank. Then I park it and let it sit for awhile and when I start it up again the needle is on the red. I just figured it was reading a little high because the truck was moving around? I alaways get the same milage to each tank?
 
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Old Jan 8, 2010 | 08:27 AM
  #7  
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I think there is a "rollover ball" in the fuel inlet that makes it all but impossible to siphon fuel out.Possibly a small 1/4 inch hose will get passed it,but it would take forever to get enough fuel out to make it worthwhile for a thief.
My 07 had a locking gas cap on it when I bought it...it was such a hassle at fill ups,I replaced it with a regular cap.The locking cap is yours if you want it,just pay the shipping.....2 keys included!
 
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Old Jan 9, 2010 | 06:41 PM
  #8  
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mine does the same thing.
 
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Old Jan 13, 2010 | 06:31 PM
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I tried a locking cap on my 05, but it threw a code, so I took it back off.
 
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Old Jan 13, 2010 | 06:55 PM
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From: Hernando Ms
Well...All I can say is that the original locking cap did fine...no codes,but a pain in the butt at fill-ups. The cap I have now has a hole in the top which doesent even require removal to fill it up.Works like a dream,and still no codes.
 
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Old Jan 16, 2010 | 05:16 PM
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From: Minnesota
I have had the problem with both of my wife's 06 Mercury. Dealer claims that the fuel in this area has a higher sulfur content than it used to have and it builds up on the sending unit. The cure was to use Techron brand injector cleaner. I didn't believe them until I tried it...It's worked a couple times. My kid has used it too in his Ford. I haven't had a problem with my F-150 but I'm pretty fussy with where I get my gas. ???
 
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