I need a little help with my problem. My 2388 is a 99 model with about 2000 engine hours, however the air conditioner has given me fits for a couple years. It will cool for several hours then quit. Sometimes if I shut it off for awhile it will work again. Some days it will work perfectly. It doesn't make any difference if in auto temp or just manual. New belt ,pulley, coolant level, oil, thermostat. The two mechanics that have tried to find my problem with no luck. Anyone else have this problem?? Thanks for any help.