I recently fixed my air conditioning in my 2001 sunfire, and now it gets a bad odor when the car has sat for awhile after using the a/c. I haven't seen and water puddles under the car either so I am thinking the evaporator drain is clogged. Anyone have some good ways to try and unclog the drain? Also, if it isn't the drain, are there some otherlikely culprits, this was not an issue the last time the a/c worked (which was at least a year ago).