1991 Chevy Cavalier mileage: 173,241. Where can I locate my PCV valve? I bought one at my local auto parts store and I can't find anything that looks like it. There are two hoses that lead into the valve cover. One can be removed to expose a silver tip that somewhat resembles the PCV that I purchased but it seems to be a different size. The other hose, when removed, exposes a plastic piece that can be unscrewed to reveal three or four plastic prongs on the end. Could the PCV go in here?