What causes the radiator fan and auxillary fan to run constantly ?

What is the temperature readout by the guage? Check coolant level in the reservoir.What is the antifreez boiling and freezing check? too much antifreez mixture can cause an engine too run hotter than if mixed correctly.A 50/50 mix is recomended! Dont add pure antifreez as needed in the summer months as this will cause poorer heat transfer from the radiator to the flow of air!