A temperature-sensitive switch functions to turn the fan on and off periodically . Radiator fans are designed to start when the temperature of the engine coolant reaches around 2degrees Fahrenheit. The radiator fan does very important jobs: to cool the radiator and stop the car from overheating. They should be putting out around volts of direct current.
The fan clutch is the assembly that holds the radiator fan to the engine and makes it turn.
The faster the engine is running the faster the fan will spin.
The reason that the fan does not have to work at these higher RPMs is that there is enough air coming in over the radiator that will be able to cool the .
This depends on the circuit that manufacturer has use in some cars the radiator fan will switch ON only once the AC radiator fan has heated up to . The fan only runs when needed to help cool the engine. A yellow light is likely to mean that the coolant level is low while red means that your engine is overheating. Are you having the same problems as me? Inspect the clutch for leakage at the front or rear of the unit (input shaft and temperature controlled expansion spring.) If leakage is observed the fan clutch has failed and needs replacing. Next, take the fan blade and turn it, the fan blade should free . Trouble shooting an over-heating engine.
For more How to and diy videos subscribe to. This procedure works on most cars no. This video shows how an normally-open cooling fan switch works. Have you noticed that your radiator fans just run all the time and never shut off? If so, there may some issues with your car that you should take care of to prevent any further problems in the near or distant future.
A radiator fan is important as it helps to circulate air within the engine of your vehicle and keep the engine temperature down. When it reaches the right operating temperature, the kick should cut in. On older fan circuits, the thermostatic switch connects to battery power on one side, and to the fan motor on the . With the type operated by the ignition switch , keep the engine running.
With no airflow through the radiator , it will soon warm up to the temperature at which the fan should cut in. The assembly usually has only three components - fan .
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