Where is the coolant fan switch located?
Beside this, what are the symptoms of a faulty cooling fan switch?
Several symptoms may point to a bad or failing thermo coolant fan switch.
- Engine overheating. Engines generate an enormous amount of heat and as a result are subjected to very large temperature swings if this switch does not operate effectively.
- Check Engine Light comes on.
- Broken or shorter signal wire.
Beside above, what makes the cooling fan come on? Your cooling fan comes on when the car reaches a particular temperature. The trigger is the thermostat in the radiator of your vehicle. It is what sends the signal for the fan. Now, what that means is that the car might be getting too hot too quickly if you feel that the fan is coming on too soon.
In this way, does the coolant temperature sensor control the fan?
The sensor works by measuring the temperature that's being given off by the thermostat and/or the coolant itself. The temperature is then sent to the on-board control system. As the control system receives the temperature from the CTS, it may trigger the cooling fan to either shut off or turn on.
Should radiator fan run 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.