180 Degree Thermostat "Hunting"
When I purchased my car in August 2020, it did not come with a thermostat. As the colder weather hit, I noticed that the temperature gauge rarely moved above 100 degrees. So, while replacing the upper hoses (I have two upper hoses because the previous owner split the upper hose for a fitting to the temperature gauge), I added a 180 degree thermostat from Bratton's. The thermostat came with two bypass holes drilled in it.
Before installation, I heated the thermostat in a pot of water on an electric range, and my temperature gun indicated that it opened properly at 180 degrees. So, I think the thermostat is working properly.
However, now that the thermostat is installed in the car, the temperature gauge "hunts" between 170 degress and 190 degress. Is that "normal" for a thermostat?
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