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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1545 (Engine Cooling System -- 5.7L) >> Repair Instructions >> Coolant Heater Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2004 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Engine Coolant Heater Cord
    GM673597Courtesy of GENERAL MOTORS CORP.
  1. Drain the cooling system. Refer to Draining and Filling Cooling System .
  2. Remove the tire and wheel, if necessary. Refer to Tire and Wheel Removal and Installation in Tires and Wheels.
  3. Disconnect the engine coolant heater cord from the engine coolant heater.
    4. Fig 2: Engine Coolant Heater Sealing Washer
    GM673591Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: Take care not to damage the surface of the opening in the engine block.
  4. Remove the engine coolant heater.
  5. Clean the opening in the engine block, remove any burrs, sealing compound, or paint.
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