Where is the PCV valve located on a 1999 buick regal?

The PCV valve location on a 1999 Buick Regal varies slightly depending on the engine (3.1L V6 or 3.8L V6). It's generally found on or near the valve cover.

To be certain, you'll need to consult a repair manual specific to your 1999 Buick Regal's engine. A Haynes or Chilton manual will have diagrams and detailed instructions. You can also often find diagrams online through a search for "[Your Engine Size] Buick Regal PCV valve location".

However, generally, look for a small, usually plastic, valve with a single hose attached on the valve cover area. It might be capped or have a hose connecting to the intake manifold. It's often a fairly easily accessible component.