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Removal Procedure

WARNING: This page is about a different car, the 2002 Chevrolet Prizm. 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
    Fig 1: Removing 2 Nuts From Cylinder Block
    G01711701Courtesy of GENERAL MOTORS CORP.
  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 .
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