GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2004 🢒 GMC C Sierra - 2WD 🢒 Engine 🢒 Engine Controls - 6.6L (LB7) 🢒 Exhaust Gas Recirculation Valve Solenoid Replacement

Removal Procedure

    Object Number: 788836 Size: SH
  1. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.
  2. Disconnect the exhaust gas recirculation (EGR) valve solenoid electrical connector (1).

    3. Object Number: 788856 Size: SH
  3. Disconnect the EGR valve solenoid vacuum lines (1).

    4. Object Number: 788880 Size: SH
  4. Remove the EGR valve solenoid bolt (1) and solenoid.

Installation Procedure

    Object Number: 788880 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.

  1. Install the EGR valve solenoid and bolt (1).

    2. Tighten
    Tighten bolt to 10 N·m (89 lb in).


    Object Number: 788856 Size: SH
  2. Connect the EGR valve solenoid vacuum lines (1).

    3. Object Number: 788836 Size: SH
  3. Connect the EGR valve solenoid electrical connector (1).
  4. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.