Chevrolet Other Air Conditioner No Air

I Recently Started My Truck And Went To Turn The A/c On And When I Did There Wasn't Air Flow On Any Setting. When The A/c Button Was Pushed...

I Have A 1998 Chevy Sierra 1500 And The Lower Metal Pipe The Goes Into The Condensor And Runs Into The Firewall Of The Truck Keeps Freezing...

I Have A 1973 Chevrolet Camaro With 138,000 Miles. When The Key Switch Is Turned To The On Position Air Comes Out Of The Vents. Not Warm...