2006 Chevrolet Cobalt

Engine Mechanical problem
2006 Chevy Cobalt 4 cyl Front Wheel Drive Automatic 98580 miles

every time I use my air conditioner or the fan in my car and I come to a stop it dies down on my rpms and it almost stalles out. Do you know what the problem is?
May 23, 2010.

Was the A/C recently repaired? An over-charged A/C system (too much refrigerant) can cause engine to stall with A/C on. Also have the charging system tested. The A/C draws a lot of power from the engine which also puts a strain on the charging system, if the alternator is weak then it may not be able to handle the extra load.

May 23, 2010.