GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2007 🢒 Express - AWD 🢒 Engine 🢒 Engine Controls and Fuel - 6.6L (LBZ and LLY) 🢒 Fuel Injection Fuel Rail Assembly Replacement - Bank 1

Removal Procedure
  1. Remove the engine cover. Refer to Engine Cover Replacement .
  2. Remove the exhaust gas recirculation (EGR) valve and bracket. Refer to Exhaust Gas Recirculation Valve Replacement .
  3. Remove the right fuel injector feed pipes. Refer to Fuel Injection Fuel Feed Pipe Replacement - Right Side .

    4. Object Number: 1732190 Size: SH
  4. Disconnect the fuel rail pressure (FRP) sensor electrical connector (1).
  5. Disconnect the right fuel fed pipe fitting from the fuel rail.

    6. Object Number: 1731515 Size: SH
  6. Remove the 2 fuel rail bolts and the fuel rail assembly.

Installation Procedure

    Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 1731515 Size: SH
  1. Position the fuel rail assembly and install the 2 bolts.

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

  2. Connect the right fuel rail feed pipe fitting to the fuel rail.

    3. Tighten
    Tighten the fittings to 41 N·m (30 lb ft).


    Object Number: 1732190 Size: SH
  3. Connect the fuel rail pressure (FRP) sensor electrical connector (1).
  4. Install the right fuel injector feed pipes. Refer to Fuel Injection Fuel Feed Pipe Replacement - Right Side .
  5. Install the EGR valve and bracket. Refer to Exhaust Gas Recirculation Valve Replacement .
  6. Prime the fuel system. Refer to Fuel System Priming .
  7. Start the engine.

    8. If the engine does not start, repeat the above step.

  8. Inspect the fuel system for leaks.
  9. Install the engine cover. Refer to Engine Cover Replacement .