When I initially got my 2109 Sorento EX I had no problem putting gasoline in the tank. For an unknown reason, for the past few months every time I go to put gas in the tank the gas backs up in the filler tube and keeps stopping like the tank is full when it's no where near close to full. I have to fill the tank at a painfully slow rate to get it to fill the tank. It occurs at different gas stations so it's not isolated to one place. I know it's not a huge deal but it's annoying as hell. Has anyone else experienced this or know why it occurs?