https://www.jonyautoparts.com/car-cooling-fan/
Whether the car cooling fan starts to rotate depends on the coolant temperature and has nothing to do with time. When the coolant temperature reaches 98 degree , the water tank fan will automatically turn on. The fan of the car water tank is automatically turned on and cannot be manually controlled. It will not start at low temperature. The medium and high temperature are divided into two speed gears. Generally, the mid-range is automatically turned on at 95 degree , and the high-end is automatically turned on at 105 degree .
Only after the engine has been working for a certain period of time, the temperature of the coolant increases, and the temperature of the coolant in the water tank also increases. When the coolant temperature reaches 95 degree , the fan starts and runs at a speed of about 1600 rpm. When the temperature reaches 105 degree , the fan speed will increase to about 2400 rpm to improve the cooling speed.
https://www.jonyautoparts.com/car-cooling-fan/
