The last couple of times I've filled up I've noticed that I put 32-33 gallons of fuel in the tank. I've been under the impression that my tank is a 34 gallon tank...... Here's the problem, I'm filling up at 1/4 tank. Has something happened to my sending unit? The truck is still showing 1/4 tank left and the Drive to Empty display still shows over 100miles....

Does it have something to do with air temp? Do I need to disconnect my batteries and reset the computer?
This all seems to have started back in mid-sept when I ran out of fuel, though I still showed an 1/8 of a tank (was on way to fill it up).

Any suggestions?
-Tim

 

I think you have a 35 gallon tank, not sure. Sounds to me like your tank sender is bad. The DTE is calulated off the tank sending unit x AV MPG.
So if sender thinks there is 1/4 tank about 8 gallons x 12 MPG=96 miles to empty. Have read about a lot of fuel tank senders going bad.
Good luck.

 

Yes I have run out between 1/8 and 1/4 before. Mostly I try to fill it at 1/4,