Radiator Cooling Fan

Without automotive radiator fans your vehicle cannot work right. If the radiator or radiator fan is not working properly your engine will overheat and could be severely damaged. Most of the engines today are liquid cooled and what this means is that the engine needs a radiator that will cool the water so that the water is able to cool the engine in your vehicle. Automotive radiator fans work to protect the engine in your vehicle from overheating, which will allow it to keep running for a much longer period of time.

Automotive radiator fans have many different jobs. Basically, when you look at a radiator fan you will find that they are very similar to the air conditioners that we all rely on when we are hot during the summer months. Automotive radiator fans are basically exchanging the heat of the engine with cooling effects that keep your engine from burning out prematurely. Automotive radiator fans have been used in liquid cooled engines and will continue to be used because they help the car engine to maintain a safe temperature regardless of how long you are driving or how fast you are going.

Automotive radiator fans generally have four to six blades on them that rotate quickly to continue to provide cooling air to the engine. The radiator fan is usually located between the engine and the radiator so that the heat can be transferred from the radiator. A properly working automotive radiator fan only turns on when the engine temperature reaches a certain level, and then it will turn off again when it is sufficiently cooled.

When automotive radiator fans do not work properly your vehicle will usually overheat very quickly. You cannot wait to replace the fan, if you do so you may cause irreversible damage to your engine, repairs that will be much more costly than the replacement of your fan. If you bring your vehicle to a mechanic they will probably be able to replace the fan in very little time, if you would like. Otherwise you can replace the automotive radiator fans on your own.

You will need to start by removing the whole radiator, in most vehicles. This should only be done when the car is cool as the liquid in the lines can be very hot and you can end up being terribly burned if you do not wait for the engine to cool. You will need to start by allowing the vehicle to cool and then you will need to drain the fluid from the radiator. At this point you will need to unbolt the radiator from the vehicle and lift it carefully out of the car.

Now, you will need to remove any mounts or brackets that attach the automotive radiator fans to the radiator. Remove the fans from the radiator and then install them onto the same radiator if it is still functioning or you can place the new automotive radiator fans on a new radiator. After installing ensure that the fans and motors turn freely and then clean the electrical connections from any dust or debris that may be on them. After this you will need to replace the radiator in the vehicle, ensure that it is bolted, reconnect any fluid lines, and then replace the proper amount of radiator fluid back into the system. When you turn on your vehicle and let it run, the fans should turn on spontaneously to cool the engine.

Luckily, the process of replacing the automotive radiator fans is not that difficult. The most difficult part of the whole process is removing the radiator, but if you have done this before you will find that it is quite straight forward with a cool engine. The important part is that you don't skip any steps and that you carefully remove any bolts and mounts before proceeding to the next step. If you try to rush through the process you may end up hurting yourself or someone else.

There Are 6 Responses So Far. »

  1. I have a 3.0L Mitsubishi V3000/Magna and i changed the radiator and the fan. I used to have to 2 fans but now only have one is that a problem? I have not driven the car yet, so I do not know if it will overheat or not.

  2. Yes it could possibly be a problem in certain situations. The 6g72 engine in that car produces a LOT of heat and needs to be efficiently cooled. One engine goes on when the car reaches operating temperature. The other goes on when you use your AC. However, they both turn on full blast when your car starts to get hot. If that happens and you do not have two fans you could potentially have a problem.
    Sources- Owner of 3 diamantes (the US name for a magna)

  3. ah sorry typo, I meant 'one fan goes on when the car reaches operating temperature' not 'one engine'

  4. No, my radiator has been cracked in my eclipse w/ a 6g72, so w/o any radiator fluid, ive had no problems with overheating in 100+ degree texas summer...

  5. Please i have a 2005 model xterra but the engine drive radiator fan is wick it's not functioning well i need the price.

  6. *2 years late*: I have a lancer and it looks like the fan has been dead for sometime but the car doesn't seem to be heating. what could be wrong with that picture?