Fuel gauge. Again.

I don't know. This might be an intermittent connection, that is, the contact fingers may not be making connection. BEST way is to get it out on the bench, get some test resistors, and go through it and KNOW you have it

Hey Del, Look what I found!!! An original Miller Gauge tester!!!

Homemade gauge test tool, C-3826

Bench testing a gas gauge