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 Feed Block to Schrader Valve

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: 755184 Size: SH
  7. Remove the schrader valve nuts (1) and bracket (2).

    8. Object Number: 791989 Size: SH
  8. Remove the fuel hose (1) from feed block.
  9. Remove the schrader valve and hose assembly from engine.
  10. Remove the hose from schrader valve.

Installation Procedure

    Object Number: 791989 Size: SH
  1. Install the hose to schrader valve.
  2. Install the schrader valve and hose assembly from engine.
  3. Install the fuel hose (1) to feed block.

    4. Object Number: 755184 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.

  4. Install the schrader valve nuts (1) and bracket (2).

    5. Tighten
    Tighten the schrader valve nuts to 20 N·m (15 lb ft).


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

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