Finding out why an engine is over heating

Checking coolant level, verifying operation of the thermostat, the fan and the fan control circuit.
A safe way to verify the thermostat is working; use an infrared thermometer like this one on Amazon: https://www.amazon.ca/gp/product/B08CGVHY2S/ref=as_li_qf_asin_il_tl?ie=UTF8&tag=backyardmech-20&creative=330641&linkCode=as2&creativeASIN=B08CGVHY2S&linkId=211c6fabb0477795b8841fc28eaf5a98

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