2. Locate the engine. It is usually in the front of the car, under the hood.
3. Find the valve cover. It is usually a black or silver metal cover on top of the engine.
4. Look for a small, round valve with a hose attached to it. This is the PCV valve.
5. The PCV valve is located on the top of the engine, near the front of the vehicle. It is a small, round device with a hose attached to it.