The PCV valve on a 2002 Chevrolet Cavalier is typically located on the
valve cover. However, the exact position on the valve cover can vary slightly depending on the engine (2.2L or 2.4L). It's usually a small, plastic valve with a single hose connected to it. You'll likely need to consult a repair manual specific to your Cavalier's engine size for a precise location diagram.
To find it, visually inspect the valve cover. Look for a small, usually black, plastic cap or valve with a hose attached. The hose will usually run to the intake manifold. A picture or diagram in a repair manual will greatly help in identifying it.
