2004 Lincoln Town Car Q&A
2004 Lincoln Town Car Question: Why does gas back up when filling tank and pump keeps cutting off.
It could be the vent line is broken/bent or not connected or clogged. If you remove the fuel tank and replace the filler neck (it should come with a vent line) you will be good to go. I would also check the tank for any issues such as rust or dirt that can clog things. - BayZog