Can someone please tell me where exactly to find the evaporator condensate drain line on a 1995 Ford Taurus GL 3.0L and the best way to clean it out. The a/c does work well but in extreme heat/humidity, it is cold for first 15 mins then goes warm for 10 mins and then cold again. I have checked under car and it is not dripping as it should. Just a drip every 30-45 seconds or so. I believe the drain is obstructed. It has never been cleaned after 140,000 miles. Any help is appreciated.