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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1291 (Engine Cooling System) >> Repair Instructions >> Thermostat Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2003 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 following components from the cylinder block:
    • The 2 nuts (1)
    • The thermostat housing
  3. Remove the following components from the thermostat housing:
    • The thermostat
    • The O-ring
  4. Clean the following materials from the thermostat cap:
    • Corrosion
    • Debris
  5. Clean the cylinder block mating surfaces.
  6. Inspect the thermostat. Refer to THERMOSTAT DIAGNOSIS   .
    Fig 1: Removing Bolts From Thermostat Housing
    G01547057Courtesy of GENERAL MOTORS CORP.
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