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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1151 (Heating, Ventilation And Air Conditioning) >> Repair Instructions >> Heater Pipe Replacement - Inlet >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2004 Pontiac Aztek and 2004 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Identifying Heater Inlet Pipe Components
    GM395307Courtesy of GENERAL MOTORS CORP.
  1. Install a new O-ring seal on the inlet pipe.
  2. Install the inlet pipe to the thermostat housing.
    3. NOTE: Refer to Fastener Notice in Cautions and Notices.
  3. Install the heater inlet pipe nut.

    Tighten:  Tighten the nut to 7 N.m (62 lb in).

    4. Fig 2: Locating Electrical Harness From The Inlet Pipe Bracket
    GM825410Courtesy of GENERAL MOTORS CORP.
  4. Connect the electrical harness to the inlet pipe bracket.
    5. Fig 3: View Of Heater Hose Pipe Connections
    GM395311Courtesy of GENERAL MOTORS CORP.
  5. Connect the inlet heater hose (1) to the inlet heater pipe (2).
  6. Install the thermostat bypass pipe. Refer to Thermostat Bypass Pipes Replacement in Engine Cooling.
  7. Install the air cleaner intake duct. Refer to Air Cleaner Intake Duct Replacement in Engine Controls - 3.4L.
  8. Fill the coolant. Refer to Draining and Filling Cooling System in Engine Cooling.
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