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Old 08-17-2009, 07:02 AM   #1
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Normin storm's Avatar
1982 31' Excella
1982 31' Airstream310
Moccas , herefordshire
Join Date: Jan 2007
Posts: 46
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fuel gauge showing full when it is not full

fuel gauge is reading full and it is only a 1/4 full.So could it be a short circuit. I am trying to find where wires for sensor go into tank It is an excella 31ft motorhome with double bed in rear .Do I have to remove panal under bed to gain access to tank sender wires as I think I must have short any helpful information would be appreciated thanks for your time norman

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Old 08-17-2009, 09:01 AM   #2
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1991 34' Excella
Princeton , New Jersey
Join Date: Aug 2003
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The sending unit is in the tank and accessed from the top of the tank. You most likely will have to drop the tank to get to it. If you are real lucky you will be able to see it mounted on the top front edge of the tank and be able remove it without dropping the tank but in any case you will be under that truck.

2004 Excursion 4x4
1991 34 ft. Excella +220,000 miles, new laminated flooring, new upholstery, new 3200 lbs axles

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Old 08-25-2009, 09:31 AM   #3
1981 28' excella motorhom
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Blue Springs , Missouri
Join Date: Aug 2003
Posts: 172
Been there. done that. You have to drop the gas tank to get at the mechanical fuel level sensor float. It's in the top of the tank. It's not hard to do, takes lots of time, tank is bulky, wait till the fuel is almost all gone and then drain the remainder. On mine two large straps hold the tank - have allen screws at one end of straps. Use a jack to lower the tank. While in there replace all the old fuel line as well. Probably would be best to verify the gauge is not defective and the wire ok as well before dropping the tank.

My tank sensor is goofy again as well. I'm leaving it like that. Bigger fish to fry for now. When the generator cuts off, I know the tank is down to 20 or so gallons and time to refuel.
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