Where is the PVC valve on a 2002 Chevy Astro van?

The Positive Crankcase Ventilation (PCV) valve on a 2002 Chevy Astro van is typically located on the valve cover. However, the exact location on the valve cover can vary slightly depending on the engine (4.3L V6 or the less common 2.9L V6).

To find it, you should:

1. Locate the valve cover: This is the top of the engine, usually a large, rectangular or slightly curved part.

2. Look for a small, usually plastic, valve with a hose connected to it: The hose will usually run to the intake manifold. The valve itself might be capped or have a small fitting.

If you're having trouble locating it, a repair manual specific to your 2002 Chevy Astro van's engine (4.3L or 2.9L) will show you a diagram with the exact location. You can often find these manuals online or at auto parts stores. A visual inspection with a diagram in hand will be the most efficient approach.