Chevrolet Cobalt Service & Repair Manual: Exhaust

Timing Chain, Replace

Caution: With the timing chain removed, avoid turning the camshaft or crankshaft. If movement is required, exercise extreme caution to avoid valve damage caused by piston contact. ...

Catalytic Converter R&R

1. Raise and support vehicle. 2. Remove wheel drive shaft heat shield. 3. Remove Heated Oxygen Sensor (HO2S). ...

See also:

Chevrolet Cobalt Owners Manual. Passenger Airbag Status Indicator
If the vehicle has one of the passenger airbag status indicators pictured in the following illustrations, then the vehicle has a passenger sensing system for the right front passenger position. The passenger airbag status indicator, if equipped, is on the instrument panel. See Passenger Sensing ...