Air Conditioning problem
2000 Cadillac El Dorado V8 Front Wheel Drive Automatic 60000 miles

air conditioner runs good when weather is cool. In hot weather it goes on sometimes and works. Other times it goes on, stops and later restarts, and at times it doesn't resdtart. It seems to work pretty good when out side temp. is below 85. Sometimes when it goes off and doesn't restart it will begin working 10 or 20 minutwa later.