First, you should start a new thread asking for help on your a/c issue. Things to include in your new thread are what Z model, year and mileage you have. Also, when did this problem first begin? Or did you buy the car with no a/c? Have you done any troubleshooting (checking for codes, manually inspecting, etc.) yourself, or has a pro tried to diagnose it?My AC is only blowing hot air. What should I do?