Originally Posted by 2000CivicSi
Its that^^^ my car was doing the same thing. My uncle who is a mechanic walked me through the steps to get a bubble (well its called an airlock) out of the system and now its fine. My overheated all the time and the fans never came on even when the guage showed it was hot. After I did that and got the air bubble out my car has been fine since. Cheap fix. Only thing you may need to get is some more radiator fluid! Lates~
that still wouldnt be the reason why his fan isnt coming on. The fan is activated by a temp switch soooo an air bubble wouldnt stop it from working.