Where is the PCV valve located on a 2004 Chevrolet Impala?

On a 2004 Chevrolet Impala, the PCV valve is typically located on the valve cover. It's usually a small, cylindrical valve with a hose attached to it. However, the exact location on the valve cover can vary slightly depending on the engine (3.4L, 3.5L, or 3.8L). You'll need to consult a repair manual specific to your Impala's engine for a precise diagram. A quick online image search for "2004 Chevrolet Impala [Your Engine Size] PCV valve location" should also provide visual assistance.