I have a 92 lexus es 300, My power steering system is leaking, will this affect the function of the radiator fan?? my fan is not rotating as fast as it is suppose to be.
a leaky power steering system wont' affect the operation of the radiator fan.
they are completely separate.
if your fan isn't spinning as fast, it's morethan likely due to age. you have a 18 year old car, things are going to wear out. usualy though the fan simply stop working. but spinning slow is a rare one.
you might want to check the voltage to the fan & be sure it's getting the proper 12 volts.