I just became aware of this AC Howl being a somewhat common problem, so I hadn't searched for threads on it before. My car has just recenlty started making this noise. It did NOT make it last summer during the incredible heat, so I don't think this can be "normal" as Max implies. The first time it went in they said that my A/C coolant was low and they flushed the system and that seemed to mostly fix the problem (only the slightest hint of the howl remained). Then i went out driving in stop-and-go traffic in 95+ degree weather, and it came back louder than ever. Whatever. |