Engine cooling fans, also known as cooling fans, are one of the most important components in a car engine. Their main function is to keep the engine operating temperature within an appropriate range to ensure proper engine operation and prolong its service life.

Cooling fans are usually driven by an electric motor whose speed can be regulated by an electronic control system. This control system adjusts the speed of the fan according to the temperature and operating conditions of the engine to ensure that the engine runs within the optimum temperature range.

A cooling fan works by drawing in air and blowing it towards the engine's radiator to remove the heat generated by the engine. The radiator is usually made of aluminium or copper and has a number of fins that dissipate heat away from the engine.

Maintenance and care of the radiator fan is very important. Regularly check the operating condition of the fan to ensure that it is functioning properly and replace any damaged parts in a timely manner. Also, clean the radiator regularly to prevent clogging from affecting heat dissipation, which can affect the life of your vehicle.

Among the possible causes and repair methods of car radiator fan failure, fan failure may lead to high engine water temperature, which requires testing of the cooling fan. Fan stalling high and not rotating may be due to poor contact, power supply problems or stalling. Fan rattling may be due to wear housing, bearing damage, fan blade deformation or foreign objects entering.

In conclusion, engine cooling fans are an integral part of the car engine and their proper functioning is vital to the proper operation of the engine and prolonging its life.