Where is the PCV Valve located in a 1991 Chevrolet Caprice?

The PCV valve on a 1991 Chevrolet Caprice is typically located on the valve cover. However, the exact position on the valve cover can vary slightly depending on the engine (the Caprice had several engine options available that year). It's usually a small, plastic or metal valve with a hose connected to it.

To locate it definitively:

1. Consult your owner's manual: This is the best resource, as it will have a diagram showing the exact location for your specific engine.

2. Look closely at the valve cover: Examine the top of the engine, paying close attention to the valve cover. The PCV valve is often near the center or towards the rear, but it could be on either side. Look for a hose leading from the valve cover to the intake manifold; the PCV valve will be where that hose connects to the valve cover.

3. Use a diagram: Online resources, such as repair manuals (like Chilton or Haynes) or parts diagrams from auto parts stores, can provide a visual guide. Search for "1991 Chevrolet Caprice PCV valve location" along with your specific engine code (if known).

Without knowing your engine type, pinpointing it further is impossible.