Fuel gauge has stopped reading correctly. Showing 1/4 tank instead of being quite full. Tank and sending unit were replaced a few years back when I first got the truck. Gauge worked fine last I knew.
This is a 51 truck that was long ago converted to 12v. Big ugly resistor under the dash.
I have multimeter and test light. Haven’t pulled the sending unit to check ohms or anything. Hoping there’s something easier I could check first.
