I have a 1995 Olds 98. If it is warm outside and I use the airconditioner then occasionally the car will just shut off as I am driving. The dash will say, AC hot disabled. I have had it to three mechanics but they cannot get it to shut off while they have it in the shop. Why does the car shut off if the engine is not running hot and the air is running fine?

Optional Information:
1995 Oldsmobile 98

Already Tried:
three mechamics and it won't shut off in the shop, only on the road. the computers will not recognize a problem