i just got done grinding the area free of paint and redid the grounds at the tank. i also made sure the ground on the back of the gauge that comes from the resister went to a good ground. i noticed when i removed the ground on top of the tank it would go all the way past the F and when i put it back on it would move down towards the F. i put more gas in so will see what happens. thought maybe the float might have gotten stuck. not sure