Hi, I'm having issues with my stock MT 06 350z with 31K miles. The issue started last winter and now has become close to unbearable now that it is summer. The AC/heater seems to take a significant amount of time (15+ minutes) to finally kick on while driving not matter what the setting. Also, while in motion, i can feel small amounts of cold air coming through when the middle AC switch is set to 'through'. Now eventually the heat/cold air will function like normal and i can start the car up again later and only have to wait a couple minutes if any to get full air. I have confirmed that both radiator fans are spinning. Any idea on whats going on here?

Thanks

 

http://www.aa1car.com/library/ac98.htm