Where is the PCV valve on a 2000 GMC Sonoma with 2.2 liter engine?

On a 2000 GMC Sonoma with the 2.2L engine, the PCV valve is typically located on the valve cover. It's a small, usually plastic, valve with a single hose attached to it. It's often near the back of the valve cover, but its exact location can vary slightly. You'll need to look closely at the valve cover for a small, round valve with a hose connected. It might be difficult to see without removing some components. A shop manual or online diagrams specific to your year and engine will be very helpful in pinpointing the location.