Overheated engine

List of things to check for.
1. Replace wiring, fan switch, alternator, battery, starter, gasket,
2. Check electrical or (CTS), coolant temprature sensor relaying wrong messages to the ECM
3. Faulty thermostat. should manifest as "check engine" light on yur dash.
In the long run could lead to enigne damage.
4. Some coolant systems require bleeding the air out of coolant system. Sensor might read the hot superheated trapped air rather than the coolant. More of a false alarm on "check engine" light.

Yoko