Originally posted by Dave Severson
Why don't you try a temperature gauge with numbers on it so that you will know what the real temperature is??? Just hot and cold on a scale is not very accurate.
It does have numbers on it. It gos over 300.

Originally posted by nystreetscene
First gen Chevy small block....As soon as I start it up or shortl after the the needle on the temperature gauge jumps as high as it can and sits there. Why would it do this ?
Sending unit as in the temp sensor?