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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 232 (Engine Cooling System) >> Repair Instructions >> Thermostat Housing Replacement >> Removal Procedure

Removal Procedure

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Important:  The thermostat is not serviceable separately. The water pump inlet and thermostat must be replaced as an assembly.

  1. Remove the bolt from the coolant recovery reservoir and reposition.
  2. Remove air cleaner assembly.
  3. Remove the radiator outlet hose. Refer to Radiator Hose Replacement - Outlet .
  4. Remove the water pump inlet bolts.
  5. Remove the water pump inlet and thermostat from the water pump.
    Fig 1: Removing Water Pump Inlet & Thermostat
    G02079152Courtesy of GENERAL MOTORS CORP.