The problem is caused by the vent tube in the top of the tank. I have a Ford F that has problems when getting fuel at the gas station at the fuel pump, .Buy Fzbca Fuel Tank Vapor Vent Check Valve Oem Ford Fuel System Amazon.com FREE DELIVERY possible on eligible purchases.Fuel Tank Venting. Your tank has to breathe. In order to breathe, your tank must have a vent somewhere that will relieve both vacuum and pressure..Find great deals on eBay for ford fuel tank vent valve. Shop with confidence..
Find great deals on eBay for ford f tank vent. Shop with confidence.. Recently my F has a fuel tank issue. When driving down the road I notice that the miles until empty drops very quickly like more than miles for each mile driven, But if I stick the funnel into the fuel fill it sucks in a bunch of air and all the fuel guage and miles til empty will return to normal when I restart the truck..