GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2003 🢒 Chevy K Silverado - 4WD 🢒 Engine 🢒 Engine Mechanical - 6.6L 🢒 Fuel Injection Control Module Harness Assembly Installation

    Object Number: 660434 Size: SH
  1. Install the main engine harness connector bracket.

    2. Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

  2. Install the main engine harness connector bracket bolts.

    3. Tighten
    Tighten the bracket bolts to 21 N·m (15 lb ft).


    Object Number: 755210 Size: SH
  3. Install the fuel injection control module harness assembly.
  4. Connect the 3 fuel injector control module harness to glow plug controller connectors.

    5. Object Number: 755205 Size: SH
  5. Connect the fuel temperature sensor connector.

    6. Object Number: 755200 Size: SH
  6. Connect the barometric pressure sensor connector.
  7. Connect the fuel injection control module harness to the oil level sensor harness connector.
  8. Connect the fuel rail pressure regulator valve connector.
  9. Connect the fuel rail pressure sensor.
  10. Connect the fuel filter assembly connectors.

    11. Object Number: 798877 Size: SH
  11. Install a new O-ring to the water outlet and lubricate with engine coolant.
  12. Install the water outlet.
  13. Install the water outlet bolts.

    14. Tighten
    Tighten the water outlet bolts to 24 N·m (17 lb ft).


    Object Number: 761227 Size: SH
  14. Install the turbocharger coolant inlet hose to the turbocharger.

    15. Object Number: 674680 Size: SH
  15. Install the main engine harness connectors.
  16. Install the main engine harness connector hold down bolts (1, 2).

    17. Tighten
    Tighten the main engine harness connector hold down bolts to 10 N·m (89 lb in).


    Object Number: 761235 Size: SH
  17. Install the two engine block ground bolts to the right front side of the engine.

    18. Tighten
    Tighten the engine block ground bolts to 34 N·m (25 lb ft).


    Object Number: 755194 Size: SH
  18. Connect the crankshaft position sensor connector.

    19. Object Number: 755191 Size: SH
  19. Connect the engine coolant temperature sensor connector.
  20. Connect the fuel injection control module connectors.

    21. Object Number: 755187 Size: SH
  21. Connect the turbocharger boost sensor connector.
  22. Connect the four injector harness connectors.