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.
Radiator Caps. In a cooling system, a higher pressure equates to a higher boiling point for the coolant. Higher coolant pressures also transfer heat from the cylinder heads more efficiently. We recommend using a radiator cap with the highest pressure rating that the radiator is designed to accept. In general, performance radiators will accept 22-24 PSI, and professional racing radiators will accept a 29-31 PSI. The coolant will typically only build to 16-18 PSI, due to expansion up to 200Â°F.