Where is the location of PCV valve on a 1998 Buick Lesabre 3.8 liter engine?
The PCV valve on a 1998 Buick LeSabre with a 3.8L engine is located on the passenger side valve cover. It's usually a small, round, plastic or metal valve. It's often near the back of the valve cover, but its exact position can vary slightly depending on the specific engine configuration. You may need a flashlight and possibly a mirror to see it clearly.