F 150 fuel issue?

[TheVisorGuy]

Had to put a fuel pump on my 2013 f150 this past summer. Ever since then I can't seem to get more than 15-20 gallons worth of gas in it until it seems full and gauges even say it's full but I know it's not. Any ideas? KRT where you at?

[Fireman]

I had this issue on a jeep. The vent was plugged and not letting the fuel vapors out. It was causing me to only be able to get 10gallons in a 15 gallon tank. found I had pinched the vent closed as I was re-installing the tank. Once I pulled the vent hose off it was good to go.

[Cwaysvt]

Yup check vent valve and purge valve.

My older 2011 f150 the purge valve leaked by and would draw a vacuum on the plastic tank which would make it collapse on the sides and push the fuel float down making the tank read lower than it actually was once it got down around 1/2 tank.

[TheVisorGuy]

Thank y'all