Where is the EGR valve located on a 1991 Buick Regal Gransport 3.8L?

The EGR (Exhaust Gas Recirculation) valve on a 1991 Buick Regal Gran Sport with a 3.8L engine is located on the intake manifold, typically towards the rear of the engine. It is mounted directly to the manifold and connected to the exhaust system via a pipe. Accessing it may require some removal of surrounding components for better visibility and reach. Always ensure the engine is off and cool before attempting to locate or service the EGR valve.