[Ravenscliff]

Hi all, today I stopped to get fuel. My tank was about 3/4 full, but because I'm going on a little trip tomorrow and didn't want to stop on the way home to get fuel, I topped off the tank of my 02 one ton When I got back in the truck the gauge stayed at 3/4, but after driving about 4 miles it moved up to full. My truck has done this before. So, my question is, why does it do this and how do I stop it from doing this?
Thanks

 

[woodnthings8]

It could be that the float in the tank is hung up and when you drive the fuel moves it around and frees it up.

 

[Ravenscliff]

Could be thanks.

 

[geohig29]

I have a 2004 6.0 liter that has done this same thing for a couple of years....I don't think it's the float, because it comes up slowly over a matter of minutes... not like the float is stuck and suddenly pops up. Now that I see I am not alone in this quirck I would like to know what is causing this.....

George.