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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 >> Installation Procedure

Installation 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. Install a new O-ring seal on the inlet pipe.
  2. Install the inlet pipe to the thermostat housing.
  3. Install the heater inlet pipe nut.

    Tighten 

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

    Fig 1: Installing Heater Inlet Pipe Nut
    G01498932Courtesy of GENERAL MOTORS CORP.
  4. Connect the electrical harness to the inlet pipe bracket.
    Fig 2: Connecting Electrical Harness To Inlet Pipe Bracket
    G01498933Courtesy 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 DRAINING AND FILLING COOLING SYSTEM .
  7. Install the air cleaner intake duct.
  8. Fill the coolant. Refer to DRAINING AND FILLING COOLING SYSTEM .
    Fig 3: Connecting Inlet Heater Hose To Inlet Heater Pipe
    G01498934Courtesy of GENERAL MOTORS CORP.
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