A radiator fan is very vital when it comes to cooling your vehicle engine. Your car engine must remain cool to avoid overheating and breaking down completely. The radiator fan takes duty of blowing or pulling air around the radiator to keep it remaining cool. Many manufactured radiators come with an electric fan which is often easy to replace or repair if need arises.
1: LET YOUR CAR ENGINE TO COOL
If you have just diagnosed the problem and your engine has been working, it is very vital to allow the engine and radiator to fully cool so that you will not burn your hands or cause any additional damage to the engine.
Turn off the ignition and allow it sit for 30 minutes to an hour. If there is no direct sun on the engine, you can equally open up the hood of your car to speed up the cooling process.
2: REMOVE THE FAN
Check your radiator and find the cooling fan. The fan should be mounted on the front or the back of the radiator, thus making it easier to access. You will have to remove any bolts keeping it in with your ratchet. There are usually four bolts on most radiators: two on top of the fan and two below.
Once the bolts are taken off, you should be able to pull it out. Carefully pull it out slowly because it is connected to a wire at the bottom of the fan. Just unhook the wire and disconnect the fan, taking it completely out of the radiator.
3: CLEAN THE FAN
Once you put the fan down on your workspace, check to see if there is any grease, tar or other substances stuck to the fan or the blades. If there is, you then clean it off. The easiest way to do this is to put a rag into degreaser and clean off the bad areas.
Use pipe cleaners to clean off the small parts of the fan, gently rubbing it back and forth to remove any unwanted substances or materials.
A dirty fan can cause your radiator fan to not work, and with a little simple cleaning, you may have been fixed it completely. Check it with 12 volts of electricity supply to see if it works. If you do not have a way to test it easily, follow the next step as a precaution before replacing your radiator fan.
4: CHECK YOUR FUSES
Locate where the fuses are kept in your fan and check them. With some fuses, you can see if they are broken by holding them up to the light and seeing if a circuit is connected. You may also use a fuse multi-tester to check if there are any bad ones. Replace old fuses with new ones and test your fan again where possible
5: RE-ATTACH THE FAN
Put the fan into your radiator, remembering to hook it back into the wire. Bolt it into place with your ratchet and test it by starting your car.
Most of the time, following these steps will fix your radiator fan. If you continue to have problems, you will need to take it in to a professional and perhaps have it changed.