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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 688 (Engine Cooling System) >> Repair Instructions >> Thermostat Replacement (6.6L Engine) >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2002 GMC Sierra, 2002 GMC Cab & Chassis Sierra, 2002 Chevrolet Silverado, and 2002 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Drain the engine coolant. Refer to Draining & Filling Cooling System .
  2. Remove the water outlet tube. Refer to Water Outlet Tube Replacement (6.6L Engine) .
  3. Remove the bolt for the fuel line bracket.
  4. Remove the 4 bolts retaining the thermostat housing cover.
  5. Remove the 2 thermostats with the seals.
    Fig 1: Thermostat Housing Cover
    G01658072Courtesy of GENERAL MOTORS CORP.