GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2007 🢒 Avalanche - 2WD 🢒 Engine 🢒 Engine Controls and Fuel - 4.8L, 5.3L, 6.0L and 6.2L 🢒 Engine Coolant Thermostat Housing Replacement

Engine Coolant Thermostat Housing Replacement LY2, LH6, LY5, LMG, LY6

Removal Procedure

    Object Number: 1699336 Size: SH
  1. Drain the cooling system. Refer to Cooling System Draining and Filling .
  2. Remove the air cleaner outlet duct. Refer to Air Cleaner Resonator Outlet Duct Replacement .
  3. Reposition the radiator outlet hose clamp at the water pump inlet.
  4. Remove the radiator outlet hose from the water pump inlet.

    5. Object Number: 1702083 Size: SH
  5. Remove the water pump inlet bolts.
  6. Remove the water pump inlet from the water pump.
  7. Remove and discard the water pump inlet seal.

Installation Procedure

    Object Number: 1702083 Size: SH
  1. Install a NEW water pump inlet seal to the water pump inlet.
  2. Position the water pump inlet to the water pump.

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

  3. Install the water pump inlet bolts.

    4. Tighten
    Tighten the bolts to 15 N·m (11 lb ft).


    Object Number: 1699336 Size: SH
  4. Install the radiator outlet hose to the water pump inlet.
  5. Position the radiator outlet hose clamp at the water pump inlet.
  6. Install the air cleaner outlet duct. Refer to Air Cleaner Resonator Outlet Duct Replacement .
  7. Fill the cooling system. Refer to Cooling System Draining and Filling .