GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2002 🢒 GMC C Sierra - 2WD 🢒 Engine 🢒 Engine Controls - 6.6L 🢒 Fuel Hose Replacement - Fuel Injector Control Module to Fuel Feed Pipe

Removal Procedure

    Object Number: 664851 Size: SH
  1. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.
  2. Drain the cooling system. Refer to Cooling System Draining and Filling in Engine Cooling.
  3. Remove the air cleaner outlet duct. Refer to Air Cleaner Outlet Duct Replacement .
  4. Remove the right turbo charged air outlet hose.

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

    7. Object Number: 791985 Size: SH
  7. Remove the fuel Inlet pipe bolt from fuel injector control module (FICM).
  8. Remove the fuel hose (1) from feed line.
  9. Remove the fuel hose from inlet pipe.

Installation Procedure

    Object Number: 791985 Size: SH

    Important: Always install new fuel line gaskets when servicing fuel lines.

  1. Install the fuel hose to inlet pipe.
  2. Install the fuel hose (1) to feed line.

    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 fuel Inlet pipe bolt to fuel injector control module (FICM).

    4. Tighten
    Tighten the bolt to 12 N·m (106 lb in).


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

    6. Object Number: 664851 Size: SH
  6. Install the right turbo charged air outlet hose.
  7. Install the air cleaner outlet duct. Refer to Air Cleaner Outlet Duct Replacement .
  8. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.
  9. Fill the cooling system. Refer to Cooling System Draining and Filling in Engine Cooling.