Gas gauge stuck on 1/4

any thoughts on where to start looking for the cause ?
Filled up yesterday thinking I still had more fuel . I put 15.5 gallons in . Probably not too far off the 1/4 mark but it never returned to the full mark after several ignition on off tries .
I recorded the mileage and will try to run tank as low as I can in case I have to drop it .
I can't believe Toyota didn't include a trip odometer in this truck !

 

Either the float is physically stuck or the resistor on the float is open allowing only what you see to show

The sending unit is going to need come out .

Might think of a new pump as well.

I just lived with mine just filled up every 100 miles for a few years.

 

Agree.

I had a tercel wagon that was the same. Filled up every 300kms, 200 in the winter haha.

 

I was afraid of that, hence a trip odometer would come in real handy now .
thanks nonetheless

 

Not this is the fix
But might work, and then u can confirm the issue

just got SB installed on my car(not the Taco)
At shop for months
Got car back
Took trip…..fuel gauge reading 3/4th’s
On the trip, felt a pause/cut out of engine….2mins later
On side of rd….trying to diagnose what just happened

eventually, got to tapping FP and sender covers with wrench I had
Looked at instrument cluster after tapping…..
Fuel gauge now read E and low fuel lite on
Paid wrecker/tow truck driver to take me to gas station

what I’m saying smack your tank with a rubber mallet
The sender might drop giving u a new reading from your F gauge

Appears for my situation, bc car sitting for so long, sender float connection stuck on level sensor
Same reasoning could apply to yours
GL