2012 bad fuel gauge gone wacky - Ford Powerstroke Diesel Forum
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Old 09-04-2013, 02:28 PM
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2012 bad fuel gauge gone wacky

So this morning while driving in my low fuel light came on and my gauge was almost at E. I thought that cant be right, I know I am not that low yet. So I went into work and just now on my drive home, when I started the truck it was at E then slowly went ALL the way to Full and stayed there. The DTE gauge slowly climbed with it also.

I just topped the truck off with 26 gallons of fuel, so I know it is full now, and the gauge current reads full. I shut the truck off 3 to 4 times while filling up and every time I turned the key to the on position or start the fuel gauge immediately went to Full.

I have a 50 gallon Titan tank, FYI.

Any ideas what in the world could be going on here? I am out of warranty.
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Old 09-04-2013, 02:42 PM
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Sounds like the sending unit in the tank went bad... But I don't know to much about the newer trucks and how they are set up either. Anyone else care to chime in here?
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Old 09-04-2013, 04:17 PM
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Aw man that sucks, Looks like that part is about $250 from rockauto.
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Old 09-05-2013, 08:34 AM
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Does anyone have any other ideas on how to diagnose before I just start replacing parts?
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Old 09-05-2013, 08:45 AM
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I'm almost certain that's what it is bud. If it was electrical or the gauge itself if would have just stopped working altogether. I have had this happen to me on two other vehicles, a Buick Rendezvous and a Ford F150 and in both cases this is what it turned out to be. Also in both cases my fuel gauge did exactly what yours was doing. Hope this helps. Thread bump for anyone else to chime in here.
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Old 09-08-2013, 08:07 AM
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Daily bump.//////////
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Old 09-15-2013, 01:53 PM
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Quote:
Originally Posted by wreedPS View Post
So this morning while driving in my low fuel light came on and my gauge was almost at E. I thought that cant be right, I know I am not that low yet. So I went into work and just now on my drive home, when I started the truck it was at E then slowly went ALL the way to Full and stayed there. The DTE gauge slowly climbed with it also.

I just topped the truck off with 26 gallons of fuel, so I know it is full now, and the gauge current reads full. I shut the truck off 3 to 4 times while filling up and every time I turned the key to the on position or start the fuel gauge immediately went to Full.

I have a 50 gallon Titan tank, FYI.

Any ideas what in the world could be going on here? I am out of warranty.
have you tried to retrieve DTCs? if it is so, most of these issues are cover under warranty. if you don't have codes. please submit more info.
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Old 09-15-2013, 02:43 PM
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The HS programmer shows no codes. Local tech thinks its the sender
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Old 09-15-2013, 03:09 PM
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is any other issues going on? is your dash display having any other anomaly. like, blinking gauges/lights or charging readings going too low or too high?
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Old 09-15-2013, 03:11 PM
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No sir, all gauges and cluster are fine. All gauges except fuel work properly.
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