I've searched already and I can't find any answers
I drive an auto DA teg
well, my problem is when I'm driving from home to work when I'm stuck in traffic my cars temperature gauge rises upto 1/4 more or before it reaches the red mark and then it drops down to the middle(I hear the 2nd radiator fan working at that time)

Well I change my thermostat but I'm still having the same problem. the car has no leak in hoses or radiator.


I need help!!!