GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 13257  Size: MH
  1. Remove the Air Cleaner Outlet Resonator.
  2. Disconnect the electrical connector to the EGR valve.
  3. Remove the EGR valve bolts.
  4. Remove the EGR valve.

Installaltion Procedure


    Object Number: 13257  Size: MH

    Important: Be sure all gasket material is removed from the EGR mounting surface. Even a small amount of material may cause a DTC P0401 to set.

  1. Install the EGR valve with the gasket.
  2. Install the EGR valve bolts.
  3. Tighten
    EGR valve bolts to 22-30 N·m (16-22 lb. ft.)

    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.

  4. Connect the EGR valve electrical connector.
  5. Install the Air Cleaner Outlet Resonator.