Radiator Fan

Radiator fan is situated directly behind the engine coolant radiator. Admitted air is necessary to lower temperature of the coolant. It is especially important when the car stands or is in moving for long, because air current absence must be compensated. In some car models with a high-power engine there are two fans. Being a part of the coolant system, radiator fan is an important part in the automobile. It turns on automatically as and when necessary. If the coolant’s temperature is not higher then outside temperature, fan doesn’t turn on.

If the fan is faulty, this may result in engine’s overheating. Theoretically it is easy to reveal damages in the fan. But in practice you may notice the breakdown when the coolant overheats. That is why an experienced car owner always watches the indicators of coolant temperature. If it seems to you that the fan is broken down, you can check it in a simple way. If there are no noises when the fan is working but the engine remains hot, this indicates that there is a breakdown. 

In most cases fan is situated in a hard-to-reach place. So it is difficult to substitute it. First of all, disconnect the accumulator battery from the fan. Then you need to disassemble forebody of the car. In order not to spend a lot of money, completely substitute the fan. If you need not only radiator fan, but also radiator grille, brake shoe facing, air filter, air conditioner compressor, outside rear-view mirror, back lamp, accelerator or another car part, look through our on-line catalogue. Due to easy-to-use search function you will quickly find all spare parts you need for car repair or maintenance.

HOW TO DETECT MALFUNCTION OF THE MOTOR COOLING FAN

First, the fan itself is tested. To do so, connect the component to the on-board 12-14 V electric system. A serviceable component will reach the maximum RPM in 2 seconds.

If the device is functioning correctly, proceed to checking the wiring. To do so, connect one end of the wire to the voltage source, and measure the voltage at the other end, using a voltmeter.

In addition, check the fan sensor that measures the engine temperature. When the temperature of the latter reaches the limit (92 oC), the fan should switch on automatically. After the engine heats up to 99-104 oC, the fan should switch to the second operating phase. If no faults of component were identified, but no automatic startup has occurred, the sensor is to be replaced.

The service life of the component has no certain limits. If the vehicle is used carefully, replacing the fan may not be required during the entire service life of the vehicle.