For 1990-2009 cars

Checks | Actions
--- | ---
Check for a loss of the coolant. | Add the coolant.
Check for weak coolant solution. | Confirm that the coolant solution is 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 water 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.