To JOHNSC16V, to answer your question, No that is not me.
A dirty fuel sender was my problem. The guage did its dance routine at about 1/3 full to 1/8 full. Never if there was more than a 1/3 of a tank of gas. Happened every time, without fail. And only when the fuel was sloshing around inside the tank. Sitting still - no problem.
However, I too have experienced bad connections on the printed circuit boards inside the instrument cluster. So it is very likely that your problem could be there. My solder problem was related to the instrument lights.
I got too many cars!! Insurance eats me alive. Dave
78 Corvette Stingray - 3k
82 242 Turbo Volvo - Manual - 270k
86 300e 5 speed manual - 210k
87 420sel - 240k
89 560sl - 78k
91 420sel - 205k
91 560sel - 85k
94 GMC Suburban - 90k
97 Harley Davidson Heritage Softail - 25k
00 GMC Silverado 1 ton 30k