Ok when we bought my 88 stang, the gas read like a quarter past full, like as high as the guage would go. We thought it was shot and we would plan to get a new float. Then we were working on the hatch rattle. We were shaking the car doing stuff. And then afterwards the guage read accuratly. So we assumed the float was stuck somewhere and fell down. Then we put like a gallon of gas since we couldnt drive it ( no tags) it went as high as it could go. Then magically it read accuratly. Then i got my tags yesterday and started driving it yesterday. I put 10$ of gas in and it reads as high as it will go, i tried to shake to car to move it free if its stuck but to no avail. So i think i have about half a tank of gas. But the guage always reads really really full. Any suggestions?