GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2008 🢒 Sierra - 2WD 🢒 Engine 🢒 Engine Mechanical - 6.6L 🢒 Engine Coolant Thermostat Housing Installation

    Object Number: 1335441 Size: SH
  1. Install the thermostat housing.

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

  2. Install the thermostat housing bolts and nuts.

    3. Tighten
    Tighten the thermostat housing bolts and nuts to 25 N·m (18 lb ft).


    Object Number: 1335434 Size: SH
  3. Install the fuel pipe bracket bolt.

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


    Object Number: 1335432 Size: SH
  4. Install the water pump inlet pipe.

    5. Object Number: 1335429 Size: SH
  5. Install the turbocharger coolant outlet hose and clamps.

    6. Object Number: 1335424 Size: SH
  6. Install the water pump inlet pipe bolts.

    7. Tighten
    Tighten the water pump inlet pipe bolts to 25 N·m (18 lb ft).


    Object Number: 1335419 Size: SH
  7. Install the EGR coolant pipe.
  8. Install the EGR coolant pipe bolts.

    9. Tighten
    Tighten the EGR coolant pipe bolts to 25 N·m (18 lb ft).


    Object Number: 1335413 Size: SH
  9. Connect the coolant temperature sensor.

    10. Object Number: 1335401 Size: SH
  10. Install the oil fill tube.

    11. Object Number: 1335397 Size: SH
  11. Install the oil fill tube bolts.

    12. Tighten
    Tighten the oil fill tube bolts to 25 N·m (18 lb ft).


    Object Number: 1335393 Size: SH
  12. Install the water outlet.

    13. Object Number: 1335391 Size: SH
  13. Install the water outlet bolts.

    14. Tighten
    Tighten the water outlet bolts to 25 N·m (18 lb ft).


    Object Number: 1335388 Size: SH
  14. Install the electrical harness bracket.
  15. Install the electrical harness bracket bolt.

    16. Tighten
    Tighten the electrical harness bracket bolt to 10 N·m (89 lb in).


    Object Number: 1335386 Size: SH
  16. Connect the turbocharger coolant inlet hose.

    17. Object Number: 1334948 Size: SH
  17. Install the main electrical harness bracket.
  18. Install the main electrical harness bracket bolts.

    19. Tighten
    Tighten the main electrical harness bracket bolts to 10 N·m (89 lb in).


    Object Number: 1334926 Size: SH
  19. Connect and install the turbocharger vane position sensor.

    20. Object Number: 1334921 Size: SH
  20. Connect and install the barometric sensor.

    21. Object Number: 1334916 Size: SH
  21. Install the main engine electrical harness connector hold down bolts.

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