The fuel gauge on my '90 K5 is stuck on full. Actually, past full in the 3 o'clock position. It has always gone past full when I fill it up, and it would swing noticeably back and forth as the fuel sloshed around during driving. Not a big deal since it still worked to show me how much fuel was left in the tank once the gas stopped moving around. For some reason after my last fill up and some subsequent driving it has stuck at the 3 o'clock position past full. Anyone know why this would be? I assume the float is probably stuck or something, but not sure how to fix it. Any suggestions would be appreciated. Thanks.