Other Fuel System Fuel Gauge problems of the 2005 Ford Freestyle

For a few days, our family had been vacationing in the mountains of ruidoso, new mexico. Before heading home to texas, we filled the gas tank in our 2005 Ford Freestyle. Shortly after leaving ruidoso on our way home, the fuel gauge suddenly went from full to empty. We stopped by the side of the road not knowing if something had happened to our fuel tank but knowing that we should have a full tank of gas. The fuel gauge would jump intermittently from indicating that there was gas to empty which continued the entire trip. The check engine light came on the control panel and also a message to check the engine. This continued the entire time. When we returned home, we immediately took the car to the Ford dealership to be repaired. After keeping it a day, they informed us that Ford was aware of the problem with the fuel gauge on the Freestyle but didn't know what to do about it. So, we were told that we would just have to deal with it until Ford comes up with a solution which will probably take a few months. The check engine message and light, they said, must be related to this. We are concerned about this greatly because we need a reliable car and distances are far in this part of the country. Waiting a few months for a repair of something essential does not seem to be a viable option but pollard Ford in lubbock, texas has given us no other choice.