When the coolant reaches a specified temperature, this switch turns on the vehicle’s coolant fan, which draws air through the radiator to regulate engine temperature.

Where is the coolant fan switch located?

The cooling fan switch should be located near the thermostat housing on the left side of the engine, behind the distributor assembly.

What turns on the cooling fan?

After sensing the heat temperature, the radiator fan turns on when the engine is running at a higher temperature. Activated by a coolant sensor via the computer, the coolant sensor is in charge of monitoring the temperature of the engine’s coolant.

When should your cooling fan 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.

Should your radiator fan always be on?

Radiator fans are temperature controlled. They cut in and out to maintain the engine temperature at the optimum level where maximum efficiency is reached. Usually, the radiator fan will not start up the moment you fire up your engine.

What happens if your radiator fan stops working?

What happens if the cooling fan stops working? If your cooling fan stops working, your engine could overheat. This could cause damage to your engine parts. It’s a serious issue and needs to be looked at by a garage.

How do I know if my cooling fan is working?

The radiator fan should be running at more RPMs than the motor. If it is not, the fan clutch is bad and needs to be replaced. Some radiator fans are solid mounted, with no fan clutch. If your radiator fan is solid mounted and the fan is not working, your belt is bad and needs to be replaced.

What does the thermostat on the cooling fan do?

The thermostat on the cooling fan is a type of switch that closes the cooling fan circuit once the coolant reaches a certain temperature. Once the fan is activated it greatly increases the flow of air over the radiator, helping to reduce the temperature of coolant and therefore aiding the evacuation of heat from the engine.

What is the purpose of the cooling system in a motorcycle?

THE purpose of the cooling system of a motorcycle is to evacuate the heat caused by friction and combustion from the engine. Keeping an engine in an optimal operating window will not only prevent breakdowns in the long term, it will also keep the engine performing at an optimal level.

Why does my car fan keep turning on and off?

Once the fan is activated it greatly increases the flow of air over the radiator, helping to reduce the temperature of coolant and therefore aiding the evacuation of heat from the engine. This is the main reason as you filter through traffic in summer you can hear other cars and lorries fans turning on an off intermittently.

What causes a motorcycle engine to overheat?

When this happens, the combustion in the chamber can be too slow to ignite, prolonging the combustion cycle and causing the exhaust side of the combustion chamber to heat up too much. Another cause, less of a problem on modern bikes admittedly, is running the engine with the ignition too far advanced.