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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 866 (Heating, Ventilation And Air Conditioning) >> Repair Instructions >> Heater Pipe Replacement - Inlet >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2003 Pontiac Aztek and 2003 Buick Rendezvous. 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. Remove the air cleaner intake duct.
  3. Remove the thermostat bypass pipe. Refer to DRAINING AND FILLING COOLING SYSTEM .
  4. Disconnect the inlet heater hose (1) from the inlet pipe (2).
    Fig 1: Removing Heater Pipe Inlet
    G01498929Courtesy of GENERAL MOTORS CORP.
  5. Disconnect the electrical harness from the inlet pipe bracket.
    Fig 2: Disconnecting Electrical Harness From Inlet Pipe Bracket
    G01498930Courtesy of GENERAL MOTORS CORP.
  6. Remove the heater inlet pipe nut.
  7. Remove the inlet pipe from the thermostat housing.
  8. Remove and discard the O-ring seal.
    Fig 3: Removing Heater Inlet Pipe Nut
    G01498931Courtesy of GENERAL MOTORS CORP.
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