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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1620 (Engine Cooling System) >> Repair Instructions >> Coolant Heater Replacement (8.1L Engine) >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2003 GMC Sierra, 2003 GMC Cab & Chassis Sierra, 2003 Chevrolet Silverado, and 2003 Chevrolet Cab & Chassis Silverado. 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. Disconnect the block heater cord from the block heater.
    Fig 1: Disconnect Block Heater Cord
    G02109280Courtesy of GENERAL MOTORS CORP.
  3. Remove the engine block heater.
    Fig 2: Remove Engine Block Heater
    G02109281Courtesy of GENERAL MOTORS CORP.
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