The simple fuel gauge operation:
1) positive lead from ignition source to one side of gauge
2) second post of gauge goes to the fuel sender
3) fuel sender housing is grounded to fuel tank
which should be grounded to chassis
4) fuel sender varies amount of ground gauge sees depending
on amount of fuel
Fuel senders;
GM (0 to 30ohms) up to 1964
GM (0 to 90ohms) 1965 and up
Joe
Last edited by Joe H; 08/23/2008 3:40 PM. Reason: wrong information
