GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2005 🢒 Yukon XL - 4WD 🢒 Engine 🢒 Engine Mechanical - 8.1L 🢒 Water Crossover Installation

    Object Number: 1309968 Size: SH
  1. Install the thermostat (312) with the seal into the engine coolant crossover (308).
  2. Install the water outlet (311).

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

  3. Install the water outlet bolts (310).

    4. Tighten
    Tighten the bolts to 30 N·m (22 lb ft).


    Object Number: 470698 Size: SH
  4. Install the gaskets and the engine coolant crossover.
  5. Install the bolts.

    6. Tighten
    Tighten the engine coolant crossover bolts to 50 N·m (37 lb ft).


    Object Number: 470692 Size: SH

    Important: Properly position the thermostat bypass hose clamps to avoid water pump pulley interference.

  6. Install the thermostat bypass hose and clamps.

    7. Object Number: 470789 Size: SH
  7. Install the drive belt tensioner.
  8. Install the drive belt tensioner bolts.

    9. Tighten
    Tighten the drive belt tensioner bolts to 50 N·m (37 lb ft).