GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2009 🢒 Sierra Denali 🢒 Engine 🢒 Engine Controls and Fuel - 6.6L 🢒 Fuel Feed Pipe Replacement

Removal Procedure

    Object Number: 1870783 Size: SH
  1. Remove the water outlet tube. Refer to Water Outlet Tube Replacement.
  2. Remove the intake manifold tube. Refer to Intake Manifold Tube Replacement.
  3. Remove the generator. Refer to Generator Replacement.
  4. Disconnect the chassis fuel feed pipe quick connect fitting from the fuel feed pipe. Refer to Metal Collar Quick Connect Fitting Service.
  5. Disconnect the engine wiring harness electrical connectors (1) from the engine coolant temperature (ECT) sensors, and reposition the wiring out of the way.

    6. Object Number: 1871964 Size: SH
  6. Reposition the fuel filter hose clamp (2) at the fuel feed pipe.

    7. Object Number: 1871965 Size: SH
  7. Remove the fuel filter hose (2) from the fuel feed pipe.

    8. Object Number: 1872011 Size: SH
  8. Reposition the fuel hose clamp (2) at the fuel injection pump.
  9. Remove the fuel hose (1) from the injection pump and reposition the hose out of the way.

    10. Object Number: 1872306 Size: SH
  10. Remove the fuel feed pipe clip nuts (1 and 2) and bolt (3).

    11. Object Number: 1872307 Size: SH
  11. Remove the fuel pipe bracket bolt (1) and fuel feed pipe clip (2).

    12. Object Number: 1872308 Size: SH

    Note: Note the routing of the fuel feed pipe under the engine wiring harness.

  12. Remove the fuel feed pipe.

Installation Procedure

    Object Number: 1872308 Size: SH

    Note: Ensure to route the fuel feed pipe under the engine wiring harness as noted during removal.

  1. Position and install the fuel feed pipe to the engine.

    2. Caution: Refer to Fastener Caution in the Preface section.


    Object Number: 1872307 Size: SH
  2. Position fuel feed pipe clip (2) behind the fuel pipe bracket and install the bolt (1).

    3. Tighten
    Tighten the bolt to 24 N·m (18 lb ft).


    Object Number: 1872306 Size: SH
  3. Install the fuel feed pipe clip nuts (1 and 2) and bolt (3).

    4. Tighten
    Tighten the bolt/nuts to 24 N·m (18 lb ft).


    Object Number: 1872011 Size: SH
  4. Position the fuel hose and install the hose (1) to the injection pump.
  5. Position the fuel hose clamp (2) at the fuel injection pump.

    6. Object Number: 1871965 Size: SH
  6. Install the fuel filter hose (2) to the fuel feed pipe.

    7. Object Number: 1871964 Size: SH
  7. Position the fuel filter hose clamp (2) at the fuel feed pipe.

    8. Object Number: 1870783 Size: SH
  8. Position the engine wiring harness and connect the engine wiring harness electrical connectors (1) to the ECT sensors.
  9. Connect the chassis fuel feed pipe quick connect fitting to the fuel feed pipe. Refer to Metal Collar Quick Connect Fitting Service.
  10. Install the generator. Refer to Generator Replacement.
  11. Install the intake manifold tube. Refer to Intake Manifold Tube Replacement.
  12. Install the water outlet tube. Refer to Water Outlet Tube Replacement.
  13. Prime the fuel system. Refer to Fuel System Priming.
  14. Start the engine. If the engine stalls, repeat the above step.
  15. Once the engine starts, inspect for fuel leaks.