GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2004 🢒 GMC C Sierra - 2WD 🢒 Engine 🢒 Engine Controls - 6.6L (LB7) 🢒 Fuel Feed Pipe Replacement

Removal Procedure

    Object Number: 877275 Size: SH
  1. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.
  2. Remove the air cleaner outlet duct. Refer to Air Cleaner Outlet Duct Replacement .
  3. Loosen the charged air cooler outlet duct clamp (1).

    4. Important: Do not use a screwdriver or other tool to pry the hose loose. The hose can be torn or damaged. Loosen the hose by twisting.

  4. Remove the charged air cooler outlet duct.

    5. Object Number: 877281 Size: SH
  5. Loosen the charged air cooler inlet duct to turbocharger clamp (1).

    6. Important: Do not use a screwdriver or other tool to pry the hose loose. The hose can be torn or damaged. Loosen the hose by twisting.

  6. Remove the charged air cooler inlet duct from the turbocharger .
  7. Remove the engine wiring harness. Refer to Engine Wiring Harness Assembly Replacement .
  8. Remove the water outlet tube. Refer to Water Outlet Tube Replacement in Engine Cooling.
  9. Disconnect the fuel feed and return pipes from the chassis pipes. Refer to Metal Collar Quick Connect Fitting Service .

    10. Object Number: 660425 Size: SH
  10. Remove the air conditioning (A/C) compressor/power steering pump bracket. Refer to Air Conditioning (A/C) Compressor and Power Steering Pump Bracket Replacement in Engine Mechanical - 6.6L.
  11. Remove the heater pipe bolt and pipe.

    12. Object Number: 755230 Size: SH
  12. Remove the fuel pipe clip bolt and clip.

    13. Object Number: 755240 Size: SH
  13. Remove the fuel pipe clip bolts and clips on the intake.

    14. Object Number: 755237 Size: SH
  14. Remove the fuel feed front pipe bracket nuts.

    15. Object Number: 791983 Size: SH
  15. Remove the fuel feed front hose from the fuel feed front pipe.
  16. Remove the fuel feed front pipe (1).

Installation Procedure

    Object Number: 791983 Size: SH
  1. Install the fuel feed front pipe (1).
  2. Install the fuel feed front hose to the fuel feed front pipe.

    3. Object Number: 755237 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.

  3. Install the fuel feed front pipe bracket nuts.

    4. Tighten
    Tighten the nuts to 25 N·m (18 lb ft).


    Object Number: 755240 Size: SH
  4. Install the fuel pipe clips and bolts to the intake.

    5. Tighten
    Tighten the bolts to 16 N·m (11 lb ft).


    Object Number: 755230 Size: SH
  5. Install the fuel pipe clip and bolt.

    6. Tighten
    Tighten the bolt to 16 N·m (11 lb ft).


    Object Number: 660425 Size: SH
  6. Install the heater pipe and bolt.

    7. Tighten
    Tighten the bolt to 20 N·m (15 lb ft).

  7. Install the A/C compressor/power steering pump bracket. Refer to Air Conditioning (A/C) Compressor and Power Steering Pump Bracket Replacement in Engine Mechanical - 6.6L.
  8. Connect the fuel feed and return pipes from the chassis pipes. Refer to Metal Collar Quick Connect Fitting Service .
  9. Install the water outlet tube. Refer to Water Outlet Tube Replacement in Engine Cooling.

    10. Object Number: 877281 Size: SH
  10. Install the charged air cooler inlet duct to the turbocharger.
  11. Align the mark on the duct (2) with the mark on the turbocharger.
  12. Position the clamp (1) as shown for proper clearance.

    13. Tighten
    Tighten the clamp to 6 N·m (53 lb in).


    Object Number: 877275 Size: SH
  13. Install the charged air cooler outlet duct to the intake.
  14. Align the mark on the duct (3) with the mark on the turbocharger.
  15. Position the clamp (1) as shown for proper clearance.

    16. Tighten
    Tighten the clamp to 6 N·m (53 lb in).

  16. Install the air cleaner outlet duct. Refer to Air Cleaner Outlet Duct Replacement .
  17. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.