If your Honda Accord is overheating, the cause could be any of the vital elements of the cooling system. Those elements are the heat exchanger, fan, water pump, thermostat and coolant, according to Techauto. Because of the many elements to this important system, there are several possible causes of an overheating engine.
The fan is one important factor in the car's ability to cool its engine, and a fan that fails to come on or rotates too slowly can cause an engine to overheat. A fan failure may be caused by a blown fuse, faulty wiring or low coolant levels. In addition many Accords utilize a fan timer system, which could be vulnerable to malfunctions including faulty connections.
Another possible cause of overheating is the thermostat. A broken, missing or stuck thermostat will fail to trigger the car's cooling system.
Additionally, a working radiator is required to get coolant to the engine and cool the car. If the radiator cap is loose or broken, coolant may evaporate rather than being relayed to the engine. Another important piece of the coolant system is the head gasket, which if cracked, prevents the important flush powered by the radiator.
Other possible causes of an overheating engine include leaky hoses, corrosion or loose belts.