I meet another Mazda 3 owner in the dealer ship at the time of Oil change. His car was much newer (2013), He had the same issue and looks like both of us are running into the problem when the car is in the traffic, when the radiator not getting enough head wind cooling air into the radiator. But once in the highway cruising speed AC works fine. Is it a fan problem, temp sensor problem, a high speed fan relay problem? any suggestion?
2004 MAZDA 3 S