Where are the pcv valves on a Pontiac Bonneville with 3.8L non-supercharged engine?

On a Pontiac Bonneville with a 3.8L non-supercharged engine, the PCV valve is typically located on the valve cover. It's a small, usually plastic, valve that's often capped with a hose going to the intake manifold. There's a good chance it's on the passenger side valve cover, but it could be on either. It's best to consult a repair manual specific to your Bonneville's year to be absolutely certain. A visual inspection of the valve covers and their associated hoses will help you locate it.