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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1245 (Engine Cooling System) >> Repair Instructions >> Coolant Heater Replacement (3.1 L) >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2003 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 JACKING AND LIFTING in General Information.
  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: Disconnecting Engine Coolant Heater Cord From Engine Coolant Heater
    G02084103Courtesy of GENERAL MOTORS CORP.
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