Q&A

there are 2 fans to aid in cooling the engine during heavy loads and at high temperatures. When the A/C is on ( or the defroster which also uses the A/C system to dehumidify the windshield ) the engine is hit with a 20 horsepower load and the A/C condenser near the radiator, gives off a lot of heat, 200 + degrees on a hot days. During these periods of operation at least 1 fan should run.
During the cold weather, it is not uncommon for neither cooling fan to operate because as you drive the wind through the radiator cools the engine and coolant sufficiently. Is your car overheating at all? If you are very concerned about the operation of both the cooling fans, a good mechanic could use a scan tool to verify that both fans do in fact operate. My 2 fans only come on when the outside temp is 90-100 and I'm in stop and go traffic with the A/C working.

the fans only come on at a certain temp i have a 95 monte carlo it has two fans in the winter the so called passenger side does come on at all during the winter time it does in the summer when the ac is running the other one comes on when it wants to at a certain temp

what did u do, to get the passenger side fan to work im having that problem to... please email me...jpolidore@hotmail.com