I replaced the thermostat over a year ago because it did not open soon enough. It has been working great since. I have an electric cooling fan over the radiator that works manually. I only use it when at idle for several minutes. Temperature gauge stayed at 180 until last week its reading around 160.
So I’m thinking the motor is hot as usual which leaves the gauge on the dash is malfunctioning or it’s the probe in the head?
Thanks for your input!


1953 Chevy 153A 3/4-ton
Working on my project since 2015
Follow along in my DITY