GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2003 🢒 Avalanche - 4WD 🢒 Engine 🢒 Engine Controls - 8.1L 🢒 Exhaust Gas Recirculation Valve Replacement

Removal Procedure

    Object Number: 750530 Size: SH
  1. Remove the engine sight shield. Refer to Upper Intake Manifold Sight Shield Replacement in Engine Mechanical - 8.1L.
  2. Disconnect the exhaust gas recirculation (EGR) valve electrical connector (1).

    3. Object Number: 858221 Size: SH
  3. Remove the EGR valve nuts.
  4. Remove the EGR valve.
  5. Remove the EGR gasket from the adapter bracket.
  6. Clean the EGR adapter bracket.

Installation Procedure

    Object Number: 858221 Size: SH
  1. Install a NEW EGR gasket onto the adapter bracket.
  2. Install the EGR valve.

    3. 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.

  3. Install the EGR valve nuts.

    4. Tighten
    Tighten the nuts to 22 N·m (16 lb ft).


    Object Number: 750530 Size: SH
  4. Connect the EGR valve electrical connector (1).
  5. Install the engine sight shield. Refer to Upper Intake Manifold Sight Shield Replacement in Engine Mechanical - 8.1L.