TL*THE CONTACT OWNS A 2006 CHEVROLET COBALT. THE CONTACT STATED THAT THE CATALYTIC CONVERTER FAILED A TOTAL OF THREE TIMES. THE FIRST FAILURE WAS REPAIRED UNDER THE THREE YEAR/30,000 MILE FACTORY WARRANTY. THE SECOND FAILURE WAS REPAIRED UNDER THE EXTENDED WARRANTY, ALONG WITH THE CAM SENSORS. THE DEALER STATED THAT THE FAILURES WERE DUE TO THE CONVERTER BECOMING CLOGGED. THE THIRD TIME THE CONVERTER WAS REPLACED UNDER THE EXTENDED WARRANTY AS WELL. CURRENTLY, THE CATALYTIC CONVERTER IS FAILING FOR THE FOURTH TIME. THE VEHICLE WOULD HESITATE UPON ACCELERATION AND LOSE POWER FOR SEVERAL SECONDS BEFORE STALLING. THE VEHICLE HAS NOT BEEN REPAIRED TO CORRECT THE FOURTH FAILURE. THE FAILURE AND CURRENT MILEAGES WERE LESS THAN 83,000. UPDATED 9/1/09 *CN UPDATED 09/04/09.*JB ACCORDING TO THE PAPERWORK, ON JULY 18, 2010, THE CONSUMER WAS INVOLVED IN AN ACCIDENT AND THE AIR BAGS FAILED TO DEPLOY. UPDATED EVOQ 08/19/10*JB