1998 Buick Park Avenue wont blow cold air on passanger side

If you have dual climate control, there are two seperate blend air doors that determine if you get heat or AC. Check them and let me know what you find. NOTE: They are under the dash near the heater core.

The problem is when the A/C is just a little low the air on the driver side is still cold while the passenger side will be warm. Charging the A/C until the passenger side becomes cool/cold is the solution here. However be careful not to go too far and overcharge which can damage the system.