My fuel warning light has come on and now will not turn off even though I have filled the tank. What would cause this?

should have replaced your fuel level sending unit as well.

most fuel gauge readings are not that accurate anyway so its out of fuel but not what the is guage reading. but the fuel level sensor in the tank may be at fault sound like its the prob but the instument pack should put the low fuel light on if its fitted on your vehicle spec but not always fitted even though the warning light is present hope this helps

Hi Jennifer-
I believe I may be able to help you with the gas spillage you are having when filling the tank. This happened on my 1998 Toyota Camry.
One day, even though I was low on fuel, the attendant had trouble adding gas to my tank. Gas would spill during filling or the nozzle would click off (as though it was full) even though it was not. I had to stand there myself and slowly add gas until the tank was full.
I learned that my car had a thin vent tube that would run from the gas tank to the gas tank opening. As gas is rushing into the tank during filling, the air that is being displaced from the gas tank escapes through this tube. This tube had rusted closed a bit and was restricting the air flow escaping from the tank during pumping causing the problems I described. Once this tube was replaced, my problem was solved!
Hope this helps!

Crank the engine continuously for 5 seconds and retrieve the malfunction engine codes. If no codes are found, then check the following:-
- Electrical connections in the engine bay area, battery.
-

Are you sure you installed the correct part, there is a with low fuel warning and without one.

EVAP System Vent?

Is the EVAP Canister, full of fuel

ZAS

I suspect either the sensor was not reconnected (or may have been damaged) when you put eveything back together or the float has sunk. Either way, you will have to do the job over to fix it.

Thanks for your interest in FixYa.com

Take the truck to an Autozone parts store, they might do it other parts stores too, they can read the codes in the computer and let you know what's going on. There sholud be a code stored even though the light is off. I don't know why the fuel level would cause the light to come on.

in side the tank on the side of the pump there is what thy call a sender not to be confused with the sending unit. The sender is atached to the float and tells the gauge how much fuel you have.