Fuel Fuel gauge problem, says quarter full when empty

[sgtpepperthestang]

So I had problems with my 08 gt, I get gas, it says it has more the it does, and when it gets to 3/4s on the gauge the needle goes down and says low fuel. Now I thought this was an easy fix so I did two things, I got my color gauges and I got a new sending unit. The only thing that’s changed is I now know 65 miles till E is a lie…. I have not found someone with a suitable starting place or a fix, can someone help a brother out?

 

[Bullitt95]

Each side of the fuel tank has its own gauge sending unit. Which one did you replace?

 

[sgtpepperthestang]

Each side of the fuel tank has its own gauge sending unit. Which one did you replace?

I replaced the one on the drivers side.

 

[Bullitt95]

I replaced the one on the drivers side.

You might want to check the passenger side sending unit. It's possible that was actually the faulty one instead of the driver's side.