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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1226 (Engine Cooling System) >> Repair Instructions >> Coolant Heater Replacement (3.1 L) >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2002 Pontiac Grand Prix. 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. Raise and support the vehicle. Refer to LIFTING & JACKING THE VEHICLE .
  3. Disconnect the engine coolant heater cord from the engine coolant heater.
  4. Loosen the engine coolant heater bolt. Do not remove the engine coolant heater bolt.
  5. Remove the engine coolant heater.
  6. Clean the engine coolant heater opening.
    Fig 1: Engine Coolant Heater Cord
    G01703921Courtesy of GENERAL MOTORS CORP.
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