GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2003 🢒 Kodiak C-Series (Conventional) C4/C5 🢒 Engine 🢒 Engine Controls - 6.6L 🢒 Fuel Injection Fuel Feed Hose Connector Replacement

Removal Procedure
  1. Drain the cooling system. Refer to Cooling System Draining and Filling in Engine Cooling.
  2. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.

    3. Object Number: 664851 Size: SH
  3. Remove the right turbo charged air outlet hose.

    4. Object Number: 664853 Size: SH
  4. Remove the left turbo charged air outlet hose.
  5. Remove the engine wiring harness. Refer to Engine Wiring Harness Assembly Replacement .

    6. Object Number: 755196 Size: SH
  6. Remove the water outlet pipe. Refer to Water Outlet Tube Replacement in Engine Cooling.
  7. Disconnect the fuel lines quick connects.

    8. Object Number: 791983 Size: SH
  8. Remove the fuel feed line (1).

    9. Object Number: 791907 Size: SH
  9. Remove the fuel injection pump to junction block fuel line.

    10. Object Number: 791898 Size: SH
  10. Remove the right fuel rail feed line bracket.
  11. Remove the fuel line from junction block.
  12. Remove the fuel rail feed line from right fuel rail and remove from engine.

Installation Procedure

    Object Number: 791898 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 fuel rail feed line to right fuel rail.

    2. Tighten
    Tighten the fuel rail feed line to 41 N·m (30 lb ft).

  2. Install the fuel line to junction block.
  3. Install the right fuel rail feed line bracket.

    4. Object Number: 791907 Size: SH
  4. Install the fuel injection pump to junction block fuel line.

    5. Tighten
    Tighten the Install the fuel injection pump to junction block fuel line to 41 N·m (30 lb ft).


    Object Number: 791983 Size: SH
  5. Install the fuel feed line (1).

    6. Tighten
    Tighten the fuel feed line to 8 N·m (70 lb in).


    Object Number: 755196 Size: SH
  6. Connect the fuel line quick connects.
  7. Install the water outlet pipe. Refer to Water Outlet Tube Replacement in Engine Cooling.

    8. Object Number: 664853 Size: SH
  8. Install the engine wiring harness assembly. Refer to Engine Wiring Harness Assembly Replacement .
  9. Install the left turbo charged air outlet hose.

    10. Object Number: 664851 Size: SH
  10. Install the right turbo charged air outlet hose.
  11. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.
  12. Fill the cooling system. Refer to Cooling System Draining and Filling in Engine Cooling.