Can any help to identify whether my sender is knackers or is it the gauge? I switch on the ignition gauge goes to full and stays there. I had the sender out and moved the float magnet up and down and the movement is minimal on the gauge and remains on full when I move the float to empty? Any help would be appreciated. Thanks S
Put an ohmmeter on the sender wires and exercise the float. Should read between 33 (full) and 240 ohms (empty) if American type, or between 10 ohms (full) and 180 ohms (empty) if European. No change or not enough change means its the sender.
Breawatch
