Answer by Englishangel. Confidence votes 12.5K. This is the sort of question you should ask the person who examines you. Medical professionals use a lot of lingo that the lay person doesn't understand and the doctor or midwife doesn't think twice about it so ask if you don't understand. a long cervix is quite normal.
The fan or fans should run when the coolant temperature in the radiator is above the temperature of the thermostat for your vehicle. Probably around 190 degrees. The answer should be in your operators manual as to what temperature a fan or fans should come on. Sometimes just one fan will operate if the water temperature dictates.
How Does a Radiator Fan Work? A radiator fan exchanges heat in the engine. When an engine is running, it produces heat, and that heat dissipates so that the engine does not become too hot and overheat. The cooling fans are part of the cooling system and their design helps to keep a cooler temperature in the engine.