Hi, I need some help with my ford escort 1992 LX. The problem is I changed the speedometer from 80- 120. Next thing that happened was "the problem," it was the fuel it goes above "F" full and I do not know should I get another Fuel gauge or was there something that came off? Everything else of the instrument is working the Tach, Speedometer, & temperature, but not the fuel. And is there anything I can check that would solve this problem. Because now I do not know how the fuel if its empty or full?? Any help would help...thank you!