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Old 10-19-2013, 05:24 AM
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Fuel gauge problem

Several times now, when i get in my truck and start it, the fuel gauge will go to full and the electronic miles to empty gauge will also sho about 475 miles to empty when there was actually about half tank of fuel. Sometimes it corrects after several minutes of driving. Lately it seems to be getting worse and sometimes doesnt correct. Anybody have this happen? What do I need to do guys?
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Old 10-19-2013, 10:44 AM
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Sounds like the fuel level sensor in the tank is going out. Usually it will fail to empty tho. Might have a short, dirt or grime in one of the connections going from the sensor to the pcm.


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Old 10-19-2013, 10:58 AM
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Thanks. I assume that sensor is in the tank? Is there a way to check the wiring? Maybe clean it? Do I need to drop the tank to do that?
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Old 10-20-2013, 07:09 AM
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It's a common problem, my truck does it sometimes too. Some claim that running Diesel Kleen helps the problem, i've been running it for a while and it has seemed to help.

If it is the sensor itself, i've heard it is about $600....so I just fill up every 350 miles.
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