Well, so I ran out of gas last night...again!! I guess it's time to try and fix the gauge again. I put a new sending unit in last year nd thought that would do it, but it still doesn't work. When I turn on the ignition, the gauge jumps up to full and remains there no matter how much gas is in the tank. Do you think I have a problem with the new sending unit or is it more likely that the gauge itself is the culprit?