i am an ase certified tech but i need more info. Have you checkrd All fuses with a test light? Does the blower run? Do you have automatic temp control? Does the compressor engage when you turn on the a/c?Did you check for vacuum leaks? Most of the time the solution is simple but with a/c problems it is us ually expensive. Feel free to e mail me with more info i would be glad to help if i can. Garry
p.s. see if there is at least 60 psi pressure of refrigerant in system. Otherwise a/c compresser wont engage.