Fuel gauge ground!?

while your under there you should take a stab light and check the hot wire with the key on there should be a pulsing hot at that wire if there isnt ive usually had to replace the fuel gauge but it could also be open between the gauge and the sender if you have a pulsing hot there and the ground doesnt take care of it you need to pull the sender out ive only run into two problems at that point most common for me is a bad sender but i have also had a couple bad floats that were full of fuel and always read empty good luck with the fix Justin