GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 1999 🢒 Century (China) (CNG) 🢒 Body and Accessories 🢒 Wiring Systems 🢒 Exhaust Gas Recirculation Valve Replacement

Removal Procedure
  1. Turn OFF the ignition switch.

    2. Object Number: 507392 Size: SH
  2. Disconnect the EGR valve electrical connector.
  3. Remove the Bolt retaining the pipe assembly to the EGR valve and carefully pull the pipe assembly back.
  4. Remove the EGR Valve retaining bolts.
  5. Remove EGR valve assembly.
  6. Remove the gasket.

Installation Procedure

    Object Number: 507392 Size: SH
  1. Install the EGR Valve with a new gasket to the intake manifold.

    2. Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

  2. Reinstall the Bolts through the EGR valve.

    3. Tighten
    Tighten the bolts to 30 N·m (22 lb ft).

  3. Connect the pipe assembly to the EGR valve.
  4. Reinstall the Bolt.

    5. Tighten
    Tighten the bolt to 30 N·m (22 lb ft).

  5. Connect the EGR valve electrical connector.