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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1451 (Engine Cooling System) >> Repair Instructions >> Thermostat Replacement (5.3L Engine) >> Removal Procedure

Removal Procedure

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2004 Oldsmobile Bravada, 2004 GMC Envoy XUV, 2004 GMC Envoy XL, 2004 GMC Envoy, and 2004 Chevrolet TrailBlazer. 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.
    Fig 1: View Of Water Pump Inlet
    GM370076Courtesy of GENERAL MOTORS CORP.
  1. Remove the radiator outlet hose. Refer to Radiator Hose Replacement - Outlet (LM4)  or Radiator Hose Replacement - Outlet (LL8) .
  2. Remove the water pump inlet bolts.
  3. Remove the water pump inlet and thermostat from the water pump.
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