So first off, my problem: My car just recently started overheating while driving longer than 20 minutes. The temp gauge sits at 190 deg for a few minutes, and the gradually starts to creep higher and higher until the temp warning light goes off when the gauge goes in the red.
It does seem to be intermittent tho. Because I can turn my car off and restart it and the temp seems to rapidly trickle back to normal operating temp. Other times, after the car had been sitting for a while, the temp struggles to get up to 190 and even dips back down to cold temps if I idle for a minute or two. Very odd.
I have heard that a stuck thermostat in the open/closed position will affect an engine either never getting coolant, or always getting coolant. So I feel comfortable that this may be the issue, but I want to know if there are some additional symptoms I can check for. For example, will running the heat/AC in my car let me know if something else is the culprit? In this instance, both my AC and my heater work in my car.
I'll change a temp sensor myself, but I'm not gonna go thru the pain of replacing a thermostat/housing. Maybe I'll buy the Stage 2 kit from ECS and have a shop do it instead, if it is in fact a thermostat.