I turn on my a/c climate control and it blows air, but not cold air. If I press the buttons to go to different vents, it won't do it. Ive had freeon (sp!) put in and it apparantly doesnt stay in there.

Ive had someone looked at it and they say its the a/c line where it goes above my turbo manifold is bad and thats its leaking from there. BUT, what about the different buttons not working on the climate control unit?? Is the unit bad??