There really isn't enough info for me to really help you. I can give you some things that I would check though.
I would check that the cooling system is full and that there are no leaks in the system.
I would also check to be sure that both cooling fans come on when the AC is turned on.
I would also check to be sure that there is nothing restricting airflow to the radiator.
Those are some ideas to check.
Tuesday, May 1st, 2012 AT 9:00 PM