I'm tired of my fuel gauge not working. My tank has been replaced prior to me owning it. It was a new tank installed in 09 and I'm not sure how many gallon it is. Is there any numbers or any way to figure out what tank I have. The sender has the same 2 wire plug. I have current to the plug, 5v. Maybe the ball fell off. I need tank size if I should need a new sender. Help is appreciated.