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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1726 (Engine Cooling) >> Repair Instructions >> Thermostat Replacement (L81) >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2003 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
  1. Drain the coolant. Refer to Draining and Filling Cooling System .
  2. Lift and support the intake manifold. Refer to INTAKE MANIFOLD .
  3. Disconnect the radiator hose from the coolant pipe.
    4. Fig 1: Coolant Pipe/Engine Lift Bracket Bolt
    GM896501Courtesy of GENERAL MOTORS CORP.
  4. Remove the coolant pipe/engine lift bracket bolt.
  5. Rotate the oil level indicator and tube away from the pipe.
    6. Fig 2: Coolant Extension Housing
    GM894725Courtesy of GENERAL MOTORS CORP.
  6. Remove the thermostat extension pipe.
  7. Remove and discard the O-ring seals.
    8. Fig 3: Thermostat Housing
    GM896494Courtesy of GENERAL MOTORS CORP.
  8. Remove the thermostat with the housing.
    1. Remove the bolts.
    2. Tilt the rear of the thermostat housing upward.
    3. Lift out the housing.
    4. Remove and discard the O-ring Seal.
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