Pontiac Repair: Air Conditioner, pontiac grand am, heater core

Question
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Followup To
Question -
This morning I was driving to work and I had on the A/C. Well I turned it off for a second, and when I turned it back on, smoke started to come into the car. I have a 2002 Pontiac Grand Am. Do you have any clue on to what it might be. No lights came on in the car, and everything was regular, exept for the smoke that was coming in through the vents. If you could please let me know what it could be that would be great. Thank you.
Answer -
Hi, did it have a smell to it?

Karen:
No, there was no smell.

Answer
I thank what you have is steam, what this is moisture that is on the heater core, and when you turn the A/C back on the fan picked it up and blew it back through the vents. Now if it dose this again need to have the drain check it could be clogged and not letting the mosture drain off.