Fuel Gage Coolent Gage

The Coolent gage only goes to the first line on the gage which might be fine. However, the gas gage is dead in the water and doesn't read at all. Do these gages share a circuit ground? My 66 Coronet did so I was wondering if any of you had this problem and what you did to solve it?

The gas gauge grounds back at he sender in the tank. You need to be sure you ahve a ground from the sender to the frame or body or a jumper that goes from the metal line coming out of the sender to the metal fuel line above it. Jumping the rubber line that connects the two metal lines.

Might have to make an alligator clam jumper to see if it's a grounding issue.

Thanks!

if you remove the sender wire and ground it right to the frame with key on it should move the fuel gauge to full or past full.

fast test for the gauge. if it reads full the sender is bad.

I have removed the one in my 68 dart 2x and clean the rust off the little spring the arm slides against to get it to working again.



what was it you are working on? a truck?

there is also a little dohicky on the back of the dash cluster, small rectangular deal that feeds the correct voltage to the gauges.

I forget the name of the device.