reads half full when i know its full. Any ideas why? How can i fix it?

 

have you done anything to the gauges lately? i had to recalibrate my fuel gauge after swapping gauge faces and needles and now it's working great.

i also remember reading a few months back that your fuel sending unit, or whatever it's called, may be failing and may need to be replaced. do a search for fuel gauge or the sending unit and i think you'll find some help. goodluck!