Mine used to get to a certain level and then bounce up or down. I fooled around with it and wound up opening the little metal box around the sender's resistor. It was full of loose rust and there was a break in the resistor wire. I bought a new one and it works fine. However, the place I bought from would not be recommended, since I had to redrill the mounting holes because they were off. - Scott


55 1st Chev.