One problem related to engine belts and pulleys has been reported for the 2007 Chevrolet Cobalt. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2007 Chevrolet Cobalt based on all problems reported for the 2007 Cobalt.
My stepbrother had two chevy Cobalts. The first one he wrecked on a country road where he skidded on gravel, his car burst into flames. Fortunately, he was able to get out of the car. He replaced it with another Cobalt. In January 2009 he had another wreck, single car. His car hit a pole and immediately broke out in flames. Unfortunately for my family he was not able to get out, he couldn't get his seat belt undone and the flames were melting the interior causing caustic flames. The policeman broke out the back window to get him out and the policeman was hospitalized from smoke inhalation my brother didn't make it, he died. I believe this should be checked out. I wrote to Chevrolet with no response.