Engine Overheats
ENGINE OVERHEATS DIAGNOSIS CHART
| Checks | Action |
|---|---|
| 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 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. |