So here we are, another new boat owner has a problem with a Gauge. I tried jumping the Gauge wires at the sender unit and the Gauge reads full when jumped (otherwise it reads empty all the time). I replaced the float with a new one. And I also re soldered the f1 fuse and sealed it. For some reason I do not get any movement on the Gauge when I reinsert the sending unit with the hoses unhooked. However when I check the ohms and slide the float back and forth I get some movement on the ohm meter but it doesn't stay at a certain resistance long enough for me to tell what the ohm reading is. So if I have the float at different placed on the baffle it doesn't read anything but if I slide the float I get movement on ohms. Any ideas?