On a 1994 Oldsmobile Cutlass Supreme with the 3.4L DOHC V6, the PCV valve is typically located on the
valve cover. However, it's *not* directly on top. It's usually on the
side of the valve cover, often near the back (firewall side) but sometimes towards the front. You'll see a small, usually black, plastic or metal valve with a hose attached to it. One hose will connect to the intake manifold and the other is a shorter breather hose typically routed to the air intake area.
Because the exact location can vary slightly depending on the specific engine configuration, you'll need to consult a repair manual specific to your year and engine for a precise diagram. A Chilton's or Haynes manual, or an online resource like a parts diagram from a reputable auto parts website (e.g., AutoZone, Advance Auto Parts) using your VIN will provide a clear visual.
