Two problems related to engine exhaust system have 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.
The contact owns a 2007 Chevrolet Cobalt. The contact stated that the vehicle emitted a fuel odor. A certified mechanic stated that the vehicle was leaking fuel onto the exhaust pipe. The certified mechanic also informed the contact that the axle fuel lines had severe corrosion. It was diagnosed that the axle fuel lines needed to be replaced. The vehicle was repaired. The manufacturer was made aware of the issue. The approximate failure mileage was 90,000.
Catalytic converter. Only three years old. So many bad gm can't supply new ones. Was told by three dealers they were back ordered and not available for maybe up to a month. Will not warranty mine because having to keep using vehicle for work I have exceeded the warranty mileage. Tried an after market one but mechanic said it would not work, so it seems only original gm will fit my car.