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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> Engine Mechanical >> Cooling System (Mechanical) >> Engine Cooling System >> Repair Instructions >> Thermostat Replacement (2.2 L) >> Removal Procedure

Removal Procedure

  1. Partially drain the cooling system. Refer to Draining and Filling Cooling System .
  2. Remove the radiator inlet hose clamp from the water outlet housing.
    Fig 1: Radiator Inlet Hose & Clamp At Water Outlet Housing (2.2L)
    G01661437Courtesy of GENERAL MOTORS CORP.
  3. Remove the radiator inlet hose.
  4. Remove the water outlet housing mounting bolts.
  5. Remove the water outlet housing from the engine.
  6. Remove thermostat and O-ring seal.
  7. Clean all of the parts.
  8. Clean all of the sealing surfaces.
    Fig 2: Water Outlet Housing, Thermostat & O-Ring Seal (2.2L)
    G01661438Courtesy of GENERAL MOTORS CORP.
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