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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1377 (Engine Cooling System) >> Repair Instructions >> Thermostat Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2004 Pontiac Vibe. However, it is still accessible from the selected car via links, so may be relevant.
  1. Drain the cooling system. Refer to Draining and Filling Cooling System .
  2. Remove the generator. Refer to Generator Replacement in Engine Electrical.
    3. Fig 1: Thermostat Housing And Nuts
    GM643937Courtesy of GENERAL MOTORS CORP.
  3. Remove the following components from the cylinder block:
    • The 2 nuts (1)
    • The thermostat housing
  4. Remove the following components from the thermostat housing:
    • The thermostat
    • The O-ring
  5. Clean the following materials from the thermostat cap:
    • Corrosion
    • Debris
  6. Clean the cylinder block mating surfaces.
  7. Inspect the thermostat. Refer to Thermostat Diagnosis .
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