I have fuel tank senders with three wire connections labelled" pos,""neg", and "sender". The top of the senders are about 2.5 " in diameter
with two opposing flat slices. Unfortunately with the other fuel tank connections I am unable to get a good crescent wrench grip on the item to remove. My receiving gauges all read 1/4 empty
but I had some overflow at 30 gal upon filling. Rochester is of no help.The sender also reads "FULL EMPTY CGF24 12 volts Is there nny tool made for removing the senders" I would send pictures but I never could figure how to do that.