The volts shouldn't make any difference Fred. You say you can get it to work "briefly" out of the tank. A bit further info would help. It should show a consistent, continual reading on an ohmmeter as you work the float lever. It should show 0+/- ohms empty and 30+/- full with a smooth transition as you move the float lever. If the reading comes and goes you have a bad sending unit.


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Name your dog Naked so you can walk Naked in the park.