For 1990-2009 cars

#### Engine Overheats

Cause | Correction
--- | ---
Loss of system pressure | Perform the radiator cap pressure test.
Loss of coolant | Add coolant. Refer to Maintenance and Lubrication.
Weak coolant solution | Perform a coolant solution test for a proper 50/50 mixture.
Coolant pump drive belt loose or missing | Adjust or replace the belt.
Dirt, leaves or insects on the front of the radiator | Clean the front of the radiator.
Hoses, coolant pump, heater, thermostat housing, radiator, core plugs, or head gasket leakage | Repair the respective parts as necessary.
Faulty thermostat | Check the thermostat.
Ignition timing retarded | Set the timing. Refer to Timing in Driveability and Emissions.
Faulty electric cooling system | Inspect the electric cooling system. Refer to Electrical Cooling System in Electrical Diagnosis.
Plugged or rotted radiator hoses | Replace the hoses.
Faulty coolant pump | Replace the coolant pump.
Plugged radiator, faulty cap | Check the radiator.
Cracked or plugged cylinder head or block | Repair the cylinder head or block as necessary.