Both systems use a temperature sensor to determine when to start the fan. If the temperature sensor is faulty, the control unit doesn’t interact with the radiator correctly. Some cars have a separate ...

The temperature prediction capability has been tested for various "real-world" driving conditions and cycles along with regulated drive cycles. The model can be calibrated to find the appropriate ...

The engine coolant temperature sensor may be cracked. This could cause the enging coolant temperature warning light to come on inadvertently and in rare cases may cause engine operating faults.