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Just got my 86 Bronco running good, so I thought I would take a small trip out of town to my hunting lease. I topped off the fuel tank earlier in the week, so I thought I was good to go.
I ran just over 125 miles and my gas gauge was on empty. I filled it up, but only held 12.5 gallons of fuel????? I think this is a 25 or 28 gallon tank, but not sure. Any help here would be great. Again I traveled around my hunting lease all day and that evening checked my fuel gauge and it was close to empty. Same thing happened, it only took around 12 gallons to fill it up. The fuel gauge goes all the way right past full, then all the way down to "E". When I purchased this truck, the dealer told me he didn't think the gauge worked because he put $15 dollars in it and it didn't move off the "E" mark. But when I filled it up for the first time, the gauge moved to Full. What could be causing this mess?
sound like the sending unit is bad. The rheostats do go bad, or the contact point is bent and not always touching. I would replace the sending unit.
Jimmy
Yea, It's not that bad if it is close to empty. Remove the 3 retaining screws that hold the filler neck and it will come down easier if you can't get to the hose clamp on the filler neck hose at the tank. Use a floor jack with a piece of wood to keep from denting the tank. It helps to have a buddy help you balance the tank when removing it too.
Jimmy
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