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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 840 (Heating, Ventilation And Air Conditioning) >> Repair Instructions >> Heater Pipe Replacement - Auxiliary >> Installation Procedure

Installation Procedure

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  1. Install the auxiliary heater pipes to the vehicle.
  2. Install the auxiliary heater pipes (2) to the clamps (5).
    NOTE: Refer to FASTENER NOTICE in Cautions and Notices.
  3. Install the heater/A/C tubes retaining nut (4) to the stud (1) at the frame (6).

    Tighten: 

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

    Fig 1: Installing Heater/A/C Tubes Retaining Nut To Stud
    G01454436Courtesy of GENERAL MOTORS CORP.
  4. Install the auxiliary heater pipes (2, 3) to the auxiliary heater core.
  5. Install the right front wheelhouse panel. Refer to WHEELHOUSE PANEL REPLACEMENT in Body Front End.
  6. Install the right rear wheelhouse panel. Refer to WHEELHOUSE INNER PANEL EXTENSION REPLACEMENT - REAR in Body Rear End.
  7. Install both of the right tires. Refer to TIRE AND WHEEL REMOVAL AND INSTALLATION in Tires and Wheels.
    Fig 2: Installing Auxiliary Heater Pipes To Auxiliary Heater Core
    G01454437Courtesy of GENERAL MOTORS CORP.
  8. Install the auxiliary heater pipes (1, 2) to the heater inlet and outlet tees (3, 4).
    Fig 3: Installing Auxiliary Heater Pipes To Heater Inlet And Outlet Tees
    G01454438Courtesy of GENERAL MOTORS CORP.
  9. Connect the outlet heater hose to the heater core.
  10. Connect the inlet heater hose to the heater core.
  11. Fill the cooling system. Refer to DRAINING AND FILLING COOLING SYSTEM in Engine Cooling.
    Fig 4: Connecting Inlet Heater Hose To Heater Core
    G01454439Courtesy of GENERAL MOTORS CORP.
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