Any stone chips, fractures or deep scratches in the finish should be repaired right away. Bare metal will corrode quickly and may develop into major repair expense.
Minor chips and scratches can be repaired with touch-up materials available from your dealer/retailer.
Larger areas of finish damage can be corrected in your dealer's/retailer's body and paint shop.
Sheet Metal Damage
Underbody MaintenanceChevrolet Cobalt Service & Repair Manual. Compression Pressure
When inspecting cylinder compression,
the engine should be at room temperature, the throttle should be open, the
spark plugs removed and the battery at full charge. The lowest reading cylinder
should not be less than 70% of the highest and no cylinder reading should
be less th ...