Before going to the expensive care unit (dealership) I thought I'd tell you my E's symptoms to see if there are any pearls of wisdom out there in EOC land. A few days ago the AC started blowing warm air. Not a gradual degradation between cold and hot. The blower works, the knob ac light illuminates, but no cold air. I did a cursory inspection of the compressor and found no holes. I did note, when turning on the AC I did not hear the compressor engage. Any ideas or suggestions on diagnosing or repairing this problem? Should I inspect the compressor closer as the possible culprit? Thanks a million.