Where is the PCV located on a 2000 Chevrolet S10 4.3L?

The PCV valve on a 2000 Chevrolet S10 4.3L is typically located on the passenger side valve cover. However, it's best to consult a repair manual or a diagram specific to your engine for its exact location. The valve itself is usually a small, cylindrical component with a hose connected to it. Look for a hose that runs from the valve cover to the intake manifold – the PCV valve is where that hose connects to the valve cover.