GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2007 🢒 Sierra Denali 🢒 Engine 🢒 Engine Controls and Fuel - 6.6L (LMM) 🢒 Fuel Return Hose Replacement - Fuel Return Pipe to Fuel Injection Pump

Removal Procedure

    Object Number: 1872010 Size: SH
  1. Remove the water outlet. Refer to Water Outlet Tube Replacement .
  2. Remove the intake manifold tube. Refer to Intake Manifold Tube Replacement .
  3. Reposition the fuel hose clamp (1) at the fuel return pipe.

    4. Object Number: 1872011 Size: SH
  4. Reposition the fuel hose clamp (2) at the fuel injection pump.
  5. Remove the fuel hose (1) from the return pipe and injection pump.

Installation Procedure

    Object Number: 1872011 Size: SH
  1. Install the fuel hose (1) to the return pipe and injection pump.
  2. Position the fuel hose clamp (2) at the fuel injection pump.

    3. Object Number: 1872010 Size: SH
  3. Position the fuel hose clamp (1) at the fuel return pipe.
  4. Install the intake manifold tube. Refer to Intake Manifold Tube Replacement .
  5. Install the water outlet. Refer to Water Outlet Tube Replacement .
  6. Prime the fuel system. Refer to Fuel System Priming .
  7. Start the engine. If the engine stalls, repeat the above step.
  8. Once the engine starts, inspect for fuel leaks.