GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

    Caution: Unless directed otherwise, the ignition and start switch must be in the OFF or LOCK position, and all electrical loads must be OFF before servicing any electrical component. Disconnect the negative battery cable to prevent an electrical spark should a tool or equipment come in contact with an exposed electrical terminal. Failure to follow these precautions may result in personal injury and/or damage to the vehicle or its components.

  1. Disconnect the negative battery cable.
  2. Remove the air cleaner assembly. Refer to Air Cleaner Assembly Replacement .
  3. Move the air cleaner outlet duct aside.

  4. Object Number: 22072  Size: SH

    Important: Note the (EGR) valve facing before removing the EGR valve.

  5. Disconnect the EGR valve harness connector.

  6. Object Number: 22075  Size: SH
  7. Loosen the EGR flange bolts.

  8. Object Number: 22078  Size: SH
  9. Remove the EGR valve and gasket.

Installation Procedure


    Object Number: 22078  Size: SH

    Important: Ensure the EGR valve is oriented in the proper direction.

  1. Place the EGR gasket between the EGR valve and the intake manifold EGR mounting location.

  2. Object Number: 22075  Size: SH

    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. Insert the flange bolts through the EGR valve and gasket into the mounting holes.
  4. Tighten
    First tighten the bolts to 10 N·m (89 lb in), and then tighten the bolts to 25 N·m (18 lb ft).


    Object Number: 22072  Size: SH
  5. Connect the EGR valve harness connector.
  6. Install the air cleaner assembly. Refer to Air Cleaner Assembly Replacement .
  7. Connect the negative battery cable.