Well besides the pyro breaking friday BEFORE live tuning,and the exhaust leak I gained on the way to Texas(not inpart of the pyro not working). Now the fuel gauge is stuck on full. It looks good,200+ miles and still on full. Haha. Anyone have suggestions? Could it be the gauge,or possibly just the sending unit? Maybe a fuse?

 

Just guessing here...It sounds like the float may be stuck in the cap area at the top of the tank. Maybe give the tank a hit or two with a rubber hammer to see if it frees. I really doubt the gauge - I don't recall anyone's gauge going kattywhompass. The other thing I can think of is a bad sender unit.

 

My buddys excursion had a stuck fuel gague also . Dont know how in the world it happend. The fload was stuck behind the wires in the sending unit in the tank It was a pita but now I dont have to bring him diesel fuel anymore lol

 

Twice in the last couple of years my gauge has read 3/4 full when I know the tank was almost empty.

In both cases, the next time I started the truck the gauge reverted to normal.

Don't know why.

 

Well,its stuck pretty good. Banged on the tank,top best I could and sides. Guess I will have to drop the tank. Yay

 

I have a problem with mine saying its on E but I think that is because I dont want to fill it! lol

 

I remember someone mentioned the same problem you are having and they found chafed wired when they dropped the tank. Dropping the tank is easy (just run here real low of fuel and then siphon the rest) and use a floor jack with a sheet of plywood on it. Might as well do the in-tank mods while you have it down, if you haven't already.

 

My e-99 will read full if the ground wire loses continuity.

 

Fixed. The float was stuck up in the wires. Zip tied them together. So hopefully it won't happen again. Thanks everyone.

 

Full throttle starts in 4x4 on 3/4 of a tank will get the float wedged at the top of the tank too! I've done it once and I thin Joe (Izzy) did it too.

 

Aren't these newer tanks baffled to prevent sloshing? If not, then I am hoping my gauge's problem is the float on the sending unit is stuck in the up position by said wires. It reads full always for the last two months.

 

Nope no baffles.

 

Reading this thread proved that. more rhetorical than anything. Judging from my own experience on this problem it would make sense to baffle long larger tanks like mine with 38 gallons and laid longitudally. I'm hoping it is tangled, but ticked I have to drop the tank to see. I've never had any of my cars go bad on fuel gauge units. And I have owned many Fords.

 

I have a similar problem. Gauge is stuck on past full, but have noticed when I first turn it on it will show around 3/4 which looks to be about right for how many miles since last fill up. Problem is in a few minutes it goes back up past full?? Doesn't seem like that would be a stuck float does it. Any Ideas.

 

How long has this been going on? 5 post I'm guessing you're new to the truck. How many tanks have you gone through?

I applaud you using the search option. welcome to FTE brother