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 Service & Repair Manual. Headlamp Alignment, Adjust
Visual Aim Headlamp aim should be inspected when a new headlamp capsule is installed, or if service or repairs to the front end area have, or may have, disturbed the headlamps or their mounting. The area should consist of a level surface large enough to allow for a v ...