by cjbiagi » Wed Apr 27, 2011 9:44 am
All electric gauges use 3 wires, a switched 12 volt, a ground and a "sender" wire from whatever you are measuring. If any of the connections are missing or not making proper contact you will have a problem. If all is well with the wiring then you either have a faulty float unit or a bad gauge. Most likely something with the float rather than the gauge.
Clyde.........75 Monza 2+2