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Cooling fan does not come on until after the car is off on 1993 Honda accord If the ac is on both fans work What could be the problem?
Wiki User
∙ 15y ago
I don't think you have a problem unless your temp gauge or light is coming on. The reason your fan comes on after you shut the car off is....... as you are driving and the car is running at operating temp, the air is flowing across the radiator cooling the coolant that circulates through the engine and radiator. When you stop, the water pump no longer circulates the coolant and you no longer have air flowing across the radiator fins cooling the coolant either. The electric fans are set to run off a relay, and when you stop, the fans come on to cool the coolant down until it cools to where the relay kicks off and the fans stop. However, the cooling fan should not come on each time you shut the vehicle off or if you're idling like mine did. If it does, you may need to replace your thermostat or you may have air in your system. Replacement of the thermostat is simple but be sure to buy the OEM from the dealership. My experience has been and the dealership has confirmed, that the aftermarket thermostats do not work well in these vehicles. My local dealership also advised that once the work on the cooling system is complete, they run the vehicle for no less than 1/2 hour with the radiator cap off. This allows air to escape the system. Since I have replaced the thermostat and "bled" the cooling system, my cooling fan only comes on during the hottest of weather.
Wiki User
∙ 15y ago
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