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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1020 (Engine Mechanical - 6.6L (LLY)) >> Repair Instructions >> Off-Vehicle Repair Instructions >> Thermostat Housing Cleaning and Inspection

Thermostat Housing Cleaning and Inspection

WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Clean the thermostat housing.
  2. Clean the thermostat housing mating surfaces.
  3. Inspect the thermostat housing for cracks.
  4. Inspect the thermostat housing mating surfaces for damage.
    5. Fig 1: View Of Thermostat Housing Inspection Areas
    GM663758Courtesy of GENERAL MOTORS CORP.
  5. Replace the thermostat housing if any damage is found.
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