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post #1 of 6 Old 07-06-2008, 03:05 PM Thread Starter
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Fuel gauge acuracy? Need opinion

I have been wondering about my fuel gauge for a while and dont know if it is something I need to fix or if all gauges are like mine. It doesnt seem to read acurately. I will get about 100 miles for the first 1/4 of the tank and then the next 1/4 will go in 50 miles or so and that is with steady driving. Once it gets to 1/4 tank it is never the same. I know parking on a slope causes it to move and that is expected but then it can take up to 30 min to come back to normal. Over all it seems to fluctuate quite a bit. Is this normal or will replacing it help at all?

2011 F-250 6.7L FX4 Lariat CCSB Tuxedo Black, Black Leather, 6" Lift w/ 37" Nitto trail grapplers 20" XD rims.
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post #2 of 6 Old 07-06-2008, 03:36 PM
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mine isn't that bad but the top half tank goes slower than the bottom. I think it would be the in tank sending unit though not the gauge itself. and that can be a PITA. if it still says close to E B4 you run out I would let it be till its not accurate at all. just my 2 cents. good luck

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post #3 of 6 Old 07-06-2008, 04:10 PM
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sounds pretty normal to me

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post #4 of 6 Old 07-06-2008, 04:15 PM
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i am on my second Ford vehicle. i have never trusted the fuel gauge. i don't go beyond 1/4 tank b4 filling up.

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post #5 of 6 Old 07-07-2008, 06:12 AM
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Mine does the same thing, When I fill it up, it will stay past "F" on the gauge for ~130-150 miles and then drop fairly quickly as the mileage racks up. This is with a 40 gallon tank

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post #6 of 6 Old 07-08-2008, 04:29 PM
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Don't use it for calculating anything really. 1/4 tank on the guage isn't 1/4 of your tank. Has to do with the shape of the tank and its doesn't have a uniform vertical shape.


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