What Would Cause A Radiator Fan To Stop Working. The most common symptom of a faulty cooling fan motor are cooling fans that do not come on. Will a bad thermostat cause the fan not to work.
If your coolant level is low then it might not feel as if your car is getting cool even with the radiator fan turned on and working. Will a bad thermostat cause the fan not to work. If the relay fails it will be unable to supply power to the fans and as a result they will not operate.
While the car is stationary the fan is supposed to draw enough airflow that the coolant temperature stops rising.
The first thing to check is whether the temperature sensor and relay are working. It is a very common problem that results in radiator fan failure. When the radiator stops working correctly too much pressure is put on the thermostat often causing it to stop working. If the relay fails it will be unable to supply power to the fans and as a result they will not operate.
