GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2007 🢒 Kodiak C-Series (Conventional) C6/C7/C8 🢒 Engine 🢒 Engine Controls and Fuel - 6.6L (LBZ and LLY) 🢒 Fuel Injection Fuel Rail Fuel Pressure Sensor Replacement

Removal Procedure

    Object Number: 1640993 Size: SH
  1. Remove the exhaust gas recirculation (EGR) cooler tube. Refer to Exhaust Gas Recirculation Valve Cooler Replacement .
  2. Remove the EGR cooler heat protector bolt (1) and protector (2).
  3. Disconnect the fuel rail pressure sensor electrical connector (4).
  4. Prior to removal, clean the fuel pressure sensor and surrounding area thoroughly with solvent, such as GM P/N 12377981 (Canadian P/N 10953463) or equivalent.
  5. Using compressed air, thoroughly blow dry the sensor and surrounding area.
  6. Remove the fuel pressure sensor (3).

Installation Procedure

    Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 1640993 Size: SH
  1. Install the fuel pressure sensor (3).

    2. Tighten
    Tighten the sensor to 70 N·m (52 lb ft).

  2. Connect the fuel rail pressure sensor electrical connector (4).
  3. Install the EGR cooler heat protector (2) and bolt (1).

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

  4. Install the EGR cooler tube. Refer to Exhaust Gas Recirculation Valve Cooler Replacement .
  5. Prime the fuel system. Refer to Fuel System Priming .
  6. Start the engine. If the engine stalls, repeat the above step.
  7. Once the engine starts, inspect for fuel leaks.