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When should radiator fans turn on?

Jim Brown

When should radiator fans turn on?

Your radiator fan should kick in at about 200 degrees Fahrenheit. If you notice your vehicle is overheating or at the very least running hotter than it normally does, listen for the fan to see if you can hear it.

Is a radiator fan the same as a cooling fan?

There’s no difference, really; both remove waste heat generated by the engine’s combustion process. A radiator is used in water-cooled engines and the fan removes heat from the cooling fluid in the radiator before it returns to the engine.

How does the radiator fan in a car work?

The radiator fan is positioned between the radiator and the engine, and is in charge of cooling the car. These cooling radiator fans are especially helpful when your car is moving too slow to obtain external airflow, or when you are stationary, and air can’t move through the grille.

How does the engine radiator fan control relay work?

Using a sensor the computer detects that the engine temperature is rising above normal limits, a signal is sent to close the fan control relay which is protected by a circuit fuse. When replacing these cooling fans match the failed unit with the new cooling fan. To check a fan clutch condition the engine must be “OFF”.

What kind of fans do you need for a radiator?

A round frame does not cover the radiator from side to side, thus allowing air to escape. Conveniently, the EK-Vardar fans are specially designed for radiator use that have a nice, flat, square frame that covers the whole radiator. EK-Vardar fan and EK-CoolStream radiator, designed to work in harmony.

What happens if a radiator fan burns out?

If the cooling fan motor burns out, the cooling fans will then, in turn be disabled. Since the cooling fan motors work in tandem with the fan blades to pull air through the radiator, the blades will then not be able to spin or cause any airflow to cool off the car.

When should radiator fans turn on?

Jim Brown

When should radiator fans turn on?

Your radiator fan should kick in at about 200 degrees Fahrenheit. If you notice your vehicle is overheating or at the very least running hotter than it normally does, listen for the fan to see if you can hear it.

What are the two radiator fans for?

The cooling fan in the engine compartment should turn on to pull air through the radiator and A/C condenser. On many vehicles, there may be two fans: a main cooling fan for the radiator, and a second fan for the condenser. Both fans should come on when the A/C is on. The engine may also run hot and overheat, too.

Does it matter which side of radiator fans are on?

a “push” fan. Mounted on the engine side of the radiator, a pull fan does not interfere with airflow at highway speeds. All shrouded fans should be on the engine side of the radiator.

Is it normal for radiator fan to turn on and off?

Your car fan will run for a few minutes after you turn off the car then turn it off. This is normal in many vehicles, such as BMW or Mercedes-Benz. The radiator fan may run up to five minutes and sometimes longer. Unless there is an electrical issue, it may stay on all the time until it drains the battery.

What controls the radiator fan?

On most modern cars, the cooling fan is controlled by the Engine Control Unit (ECU) which gets a signal from the coolant temperature sensor. If it’s not working, the fan won’t turn on when it needs to, which means the engine might overheat.

How do I know if my fan is pushing or pulling?

If there are no arrows, then you can tell by the sticker on the center of the fan. The one with the company logo on it is usually on the side that the air is flowing to. For example, if the fan is on the top of the case and the logo is facing up, then it is pulling air out of the case.

What is the fan behind the radiator called?

Those located at the rear of the radiator are called puller fans. The pusher fans receive air that comes in through the grill area and then they push that cooler air over the radiator. The puller fans pull the air from the grill, drawing it over the radiator.

When do you turn on the radiator fan?

Both radiator fans should always run when the coolant temperature sensor in the bottom tank of the radiator reaches about 212*F. Click to see full answer. Similarly one may ask, is the fan supposed to be on when AC is on? The fan only turns on when cooling or heating (in winter) is required.

Why do you need a radiator fan in a car?

To stop the engine from overheating, we take the help of coolants that flow through a radiator into the engine. The radiator’s job is to keep the coolant cool so that when it returns back into the engine, it is able to absorb more heat. A radiator fan is thus used to keep the temperature of the coolant in check. Thus, it has an important job.

Is the fan supposed to be on when AC is on?

Both radiator fans should always run when the AC compressor is engaged. Both radiator fans should always run when the coolant temperature sensor in the bottom tank of the radiator reaches about 212*F. Click to see full answer. Similarly one may ask, is the fan supposed to be on when AC is on?

Why is my radiator fan motor not working?

Some vehicles are equipped with an extra fan for more efficient cooling. A common misconception is that a radiator fan motor is always the problem when the fan fails to start. This often causes individuals to buy a new fan motor, when the true culprit could instead be due to a non-working fan motor module.