One problem related to engine exhaust system has been reported for the 2008 Chevrolet Cobalt. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2008 Chevrolet Cobalt based on all problems reported for the 2008 Cobalt.
Since beginning of 2011 the steering wheal starts shaking and vibrating when I start the car. In March 2011 I went to pepboys and they said it might be a problem with the motor. Beginning of April I started the car and a lot of white thick smoke came out of the exhaust emmission so I drove back to pepboys. They figured it might be a problem with the gasket or even gasket head which was the following week confirmed by the gm dealer. The is only 3 years old and has only 28000 miles!.