Check for a loss of the coolant.

Add the coolant.

Check for a weak coolant solution.

Confirm that the coolant solution is a 50/50 mixture of ethylene glycol and water.

Check the front of the radiator for any dirt, any leaves, or any insects.

Clean the front of the radiator.

Check for leakage from the hoses, the coolant pump, the heater, the thermostat housing, the radiator, the core plugs, or the head gasket.

Replace any damaged components.

Check for a faulty thermostat.

Replace a damaged thermostat.

Check for retarded ignition timing

Perform an ECM code diagnosis. Confirm the integrity of the timing belt.

Check for an improperly operating electric cooling fan.

Replace the electric cooling fan.

Check for radiator hoses that are plugged or rotted.

Replace any damaged radiator hoses.

Check for a faulty water pump.

Replace a faulty coolant pump.

Check for a faulty surge tank cap.

Replace a faulty surge tank cap.

Check for a cylinder head or an engine block that is cracked or plugged.

Repair the damaged cylinder head or the damaged engine block.