Air conditioner

sometimes when these systems are low on refrigerant they will work fine untill the engine reaches normal operating temp. they will sometimes quick cycle the compressor on and off and this causes inadequate cooling. Also the electrical connection @ the compressor could be shorted out. check the relay for the a/c compressor in the fuse panel under the hood on the drivers side. but i would first be sure that the system has the proper ammount of refrigerant in it by taking it to a service professional and having the R134A checked.

I have a 1998 had the same problem and after awhile my compressor locked up cost me more money in the long run a tow bill but the compressor plus labor..Replace the compressor if you have not already.