Went for a ride yesterday (perfect day here in East TN) and as soon as I turned the key on the fuel gauge started blinking on and off at about 1 Hrtz. This continued for about 10 minutes or so then it stayed on and showed one bar (the tank was full) then slowly started adding bars (about one per minute) until it showed full. Then it started the process all over again. Anyone had something like this happen to them? How did you fix it? Bad sending unit maybe? Thought I'd ask around before I took it to the dealer.