I noticed my temperature gauge wasn't registering the last time I had the truck out in the fall.

It's a mechanical gauge, so I thought it works or it doesn't. When the outside temperature warms up in the spring, I'll have to inspect the line to see if something is broken.
Would coolant level affect the gauge or do I need to replace it?

JD


1951 Chevy 3100 1/2 ton (1957 235, 4 speed, 411 rear)