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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1677 (Engine Cooling System) >> Repair Instructions >> Thermostat Replacement (3.8L) >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2003 Buick Regal and 2003 Buick Century. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove the fuel injector sight shield. Refer to FUEL INJECTOR SIGHT SHIELD REPLACEMENT (L36) or FUEL INJECTOR SIGHT SHIELD REPLACEMENT (L67) in Engine Mechanical - 3.8L.
  2. Partially drain the cooling system. Refer to DRAINING AND FILLING COOLING SYSTEM  .
  3. Use the J 38185  in order to reposition the hose clamp from the water outlet housing.
  4. Remove the radiator inlet hose from the water outlet housing.
    Fig 1: Removing Radiator Inlet Hose From Water Outlet Housing
    G01969612Courtesy of GENERAL MOTORS CORP.
  5. Remove the water outlet housing bolt and the stud.

    Remove the water outlet housing and the gasket.

    Fig 2: Removing Water Outlet Housing, Mounting Bolt & Thermostat
    G01969613Courtesy of GENERAL MOTORS CORP.
  6. Remove the thermostat.
  7. Clean and Inspect the water outlet housing gasket mating surfaces.
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