How long can the car fan still run after the engine is turned off?

1 Answers
OFaith
07/30/25 6:17am
After the car is turned off, the fan can still run for 10 minutes. Relevant information is as follows: 1. Engine: If the engine coolant temperature at the moment of parking is higher than the acceptable soaking temperature of the engine, the vehicle's computer will automatically calculate the fan's operating speed and time, thereby automatically controlling the fan's operation. The higher the temperature of the motor, the longer the fan will run after stopping. When the temperature of the motor coolant drops below the soaking temperature, the fan will shut off, thereby protecting the motor and extending its service life. 2. Cooling system: The car's cooling system is divided into a large circuit and a small circuit. When the engine is cold and the temperature is low, the engine needs to reach the working temperature of 90° as quickly as possible, so the small circuit will operate first. Once the temperature rises to normal, the thermostat opens, and the large circuit begins to operate, allowing the antifreeze to start flowing through the radiator.
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