The ground that is normally the issue can’t be reached from outside the gauge cluster. The cluster bezel and glass must be removed. I have a spare gauge and took a picture to show you.
I wouldn’t jump the gun and take your cluster apart until you test everything else. for example I installed a new gauge, new sending and new wiring and it failed after a few weeks. When I turned on the ignition it went right to empty and I knew I had at least a half tank of gas. The brass float was full of gas. I replaced it with a plastic float and now it works.
I’m going to leave the troubleshooting to the experts.Good luck!
Last edited by Phak1; 01/06/202112:43 AM.
Phil Moderator, The Engine Shop, Interiors and Project Journals
1952 Chevrolet 3100, Three on the Tree, 4:11 torque tube Updated to: ‘59 235 w/hydraulic lifters, 12v w/alternator, HEI, PCV and Power front Disc Brakes Project Journals Stovebolt Gallery Forum