There are many parts in the car, but hard-working among them parts is the engine. This is why the engine tends to heats up. Hence the thermo cooling fan switch is such an important part as it regulates/ the temperature.
This component is seen on the actual engine and is able to read the engine’s temperature so it knows when it’s hot enough to be cooled down. The switch does not only works to switch on the fan, but then once the needed engine temperature is reached it equally turns the fan off. This part is susceptible to failure since it is an electrical component and when this happens it’s imperative to have it replaced as soon as possible.
The thermo coolant fan switch usually is not among the items in your list of regular maintenance of your vehicle since ideally it is meant to last the lifetime of the car.
You’re “Engine Hot” warning light or fans come on, it should not be ignored because it could be that the thermo coolant fan switch is faulty so the fan isn’t coming on.
If the fan fails to turn at all, this can be an indication that the thermo coolant fan switch is bad. However it could something else, hence it’s best to have a mechanic run a full diagnoses.
- If the check light comes on, get your vehicle diagnosed immediately. The thermo coolant fan switch failure is just one of the many causes of this light coming on. Have professionals look at the computer codes to determine the real fault.
The thermo coolant fan switch has the ability to monitor and read the temperature of the engine. So it knows when to turn the fan on to cool off the engine, as well as when to turn the fan off once the engine reaches the desired temperature. Thus soon as this part has crisis, there is the risk of overheating the engine. It is recommended that you have a certified mechanic undertake this replacement to forestall any further problem.