An overheated engine may be caused by these possible reasons:

- Leaking in coolant

- Clogged cooling system

- Radiator cap is weak

- Thermostat is stuck shut

- Electric cooling fan is not working

- Faulty fan clutch, slipping fan belt, or missing fan shroud

- Anti-freeze is too high or too low in concentration

- Debris present in radiator or is collapsed

- Exhaust system is limited