When l first turn on my car, the a/c seems to work, but within about 5 minutes, it is no longer cool.What could the problem be, and how much do you think it should cost to have it fixed?
It is not the freon -- already had that checked.

it might need a re-charge...

If it is not the freon, then it is the motor that pulls the cool air into the system. It is separate from the actual fan motors. Might cost $50 if you find a used on and do it your self. Like everything else, probably costs 4 times that if you have it done.