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). ...

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Chevrolet Cobalt Service & Repair Manual. Engine No Start
A visual inspection must always be performed to confirm the presence of aftermarket components, potential collision damage, or areas of concern. Caution: The fuel system is under constant pressure, even with the key off. Before testing or servicing fuel system rel ...