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1987 - 1996 F150 & Larger F-Series Trucks 1987 - 1996 Ford F-150, F-250, F-350 and larger pickups - including the 1997 heavy-duty F250/F350+ trucks

Incorrect Fuel Gauge Reading?

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Old Feb 26, 2010 | 06:46 PM
  #1  
96F250tat's Avatar
96F250tat
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Incorrect Fuel Gauge Reading?

Hey there, i need a bit of help with my '96 f250 5.8L concerning the fuel reading in my truck. I wait until my fuel gauge reads just about empty to fill it up again. Well within the past few months or so, ive noticed that every time i go to fill up, i can only pump in about 13 gallons in my 19 gallon tank....which leaves 6 gallons still in the tank while shes reading empty? Oh, and if it makes a difference at all, i havent used my rear tank at all in about 2 years because of a leak. Im confused to whats goin on here. Thanks in advance for any help or insight!
 
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Old Feb 26, 2010 | 07:06 PM
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lol well idk if i would be complaining about it saying ur on E with gas still in the tank

uhm the leaking rear tank wouldnt be causing the problem

the sending unit in the tank is probably wore out

did u use to run the truck alot with just 6 gallons or so in the tank
 
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Old Feb 26, 2010 | 09:42 PM
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The rear tank on my '92 F350 reads empty when I have about 4 gallons left. Seems pretty normal to the reading you are getting. I have run it until the engine sputtered and died several times to test how far I can go and what a complete refill takes. It also took exactly 19 gallons to refill it when I installed a brand new tank.
 
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Old Feb 26, 2010 | 10:14 PM
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I have never been able to fill more than 13 gallons in my rear tank that should be a 18.2 gallon tank. Even when the gauge reads on the wrong side of empty for the last 40 miles.
 
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