Possible Causes
- Low coolant level
- External engine coolant leak
- Airlock in system
- Pressure relief cap installation
- Restricted airflow through the A/C condenser/radiator
- Internal engine coolant leak
- Coolant condition/concentration
- Accessory drive components
- Non-OEM engine enhancement components
- Electric cooling fan
- Engine coolant temperature indicator system (gauge)
- Engine Coolant Temperature (ECT) sensor (if equipped)
- Cylinder head temperature (CHT) sensor (if equipped)
- Heater core
- Water pump
- Coolant flow restriction