Trying to figure out why my 54 Chevy truck original
in-dash fuel gauge does not work. Needle sits on E and never moves. Truck was converted to 12V prior to my ownership and the previous owner has an after market fuel gauge attached under the dash, which works fine.
Also the truck appears to have the original sending unit, but not positive. It reads 140 OHMS at 1/4 full. I purchased an after market 30 OHM sending unit that I bench tested and it works fine.
I tried connecting the current in tank sending unit to the in-dash fuel gauge, using a Runtz 12V to 6V reducer, and still needle sat on E. Tried same with the new 30 OHM sending unit and nothing still. At this point I figured someone had possibly hooked up 12V to the in-dash gauge without a reducer and toasted the gauge. I pulled the in-dash gauge and inspected it and it looks good but hard to tell. Nothing looks burned and all the little wires are intact. Is there a way to bench test the gauge out of the dash?
Thanks,
Jim
