EGR Valve: Removal
WARNING: This page is about a different car, the 2003 Pontiac Bonneville, 2003 Buick Park Avenue, and 2003 Buick LeSabre. However, it is still accessible from the selected car via links, so may be relevant.
Turn OFF the ignition. Disconnect the electrical connector from the Exhaust Gas Recirculation (EGR) valve. See Figure. Remove the two EGR valve retaining nuts. Remove the EGR valve. Remove the gasket from the EGR valve adapter. Clean the EGR valve adapter from dirt and debris.