Where is the erg valve located on a 1992 Chevy Cheyenne 4.3 liter 4x4?

The ERG (Exhaust Gas Recirculation) valve on a 1992 Chevy Cheyenne with a 4.3-liter engine is typically located on the intake manifold, near the throttle body. It is connected to the exhaust system via a metal pipe. You might need to remove some components for better access, but it should be relatively easy to identify by following the vacuum lines and electrical connections.