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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1355 (Engine Cooling System) >> Repair Instructions >> Thermostat Housing Replacement (4.8L, 5.3L, and 6.0L Engines) >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2003 GMC Sierra, 2003 GMC Cab & Chassis Sierra, 2003 Chevrolet Silverado, and 2003 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
IMPORTANT: The thermostat is not serviceable separately. The water pump inlet and thermostat must be replaced as an assembly.
  1. Remove the radiator outlet hose. Refer to Radiator Hose Replacement - Outlet (4.3L Engine)  or Radiator Hose Replacement - Outlet (4.8L, 5.3L, and 6.0L Engines)  or  Radiator Hose Replacement - Outlet (6.6L Engine)   or  Radiator Hose Replacement - Outlet (8.1L Engine)   .
  2. Remove the water pump inlet bolts.
  3. Remove the water pump inlet and thermostat from the water pump.
    Fig 1: Removing Water Pump Inlet & Bolts
    G02109117Courtesy of GENERAL MOTORS CORP.
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