GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2005 🢒 GMC C Sierra - 2WD 🢒 Engine 🢒 Engine Controls - 6.6L (LLY) 🢒 Fuel Injection Fuel Feed Manifold Replacement

Removal Procedure

    Object Number: 1387609 Size: SH
  1. Reposition the fuel hose clamp at the return/junction block.
  2. Remove the hose (1) from the return/junction block.
  3. Disconnect the right fuel return line from the return/junction block line.

    4. Object Number: 1387888 Size: SH
  4. Reposition the return/junction block hose clamps (3).
  5. Remove the return/junction block hoses.
  6. Remove the return/junction block line clamp bolt (2).
  7. Remove the return/junction block bolt (1).

    8. Object Number: 1335596 Size: SH
  8. Remove the return/junction block.

Installation Procedure

    Object Number: 1335596 Size: SH
  1. Install the return/junction block.

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


    Object Number: 1387888 Size: SH
  2. Install the return/junction block bolt (1).
  3. Install the return/junction block line clamp bolt (2).

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

  4. Install the return/junction block hoses.
  5. Position the return/junction block hose clamps (3).

    6. Object Number: 1387609 Size: SH
  6. Connect the right fuel return line to the return/junction block line.
  7. Install the hose (1) to the return/junction block.
  8. Position the fuel hose clamp at the return/junction block.
  9. Prime the fuel system. Refer to Fuel System Priming .
  10. Start the engine. If the engine stalls, repeat the above step.
  11. Once the engine starts, inspect for fuel leaks.