Problem overview
The ignition module or an ignition coil may fail causing an engine misfire, the Check Engine Light may or may not illuminate. Diagnoses will be required to determine the cause and needed repair.
190 people reported this problem
79 commentsChevrolet Cobalt vehicles with this problem
7 model years affected
Average mileage: 107,413 miles
(15,000 - 227,777)
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