Originally posted by Doughnut
I have a 1957 2 DrHt. 400 cid motor. Turbo 350 trans. The gas gauge goes to full when I fill it up. Instead of metering the fuel level it will just drop to empty when the amount of gas in the tanks drops. There is no in between. Either reads full or empty

Please help!
Ralph
its not but one way to find out for sure. take the fuel gauge wire off of the sending unit at the tank and ground it out, if the dash unite goes to full and then take it off of ground and the dash unite goes to empty then its the tank sending unit bad. by it going to full the way it does pretty much tells you its the tank unite anyway like Oldf100fordman said..