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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1482 (Heating, Ventilation And Air Conditioning) >> Repair Instructions >> Expansion (Orifice) Tube Replacement (Body VIN Code 6) >> Installation Procedure

Installation Procedure

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IMPORTANT: Install the shorter screen end of the expansion tube into the evaporator tube first.
  1. Install the expansion tube (4) to the evaporator tube (1).
  2. Use the J 26549-E in order to install the expansion tube (4).
  3. Install the new O-ring seal. Refer to O-RING REPLACEMENT .
  4. Assemble the evaporator tube at the block fitting (3).
  5. Install the nut (2) to the evaporator tube block (3).
    NOTE: Refer to FASTENER NOTICE in Cautions and Notices.
    Fig 1: Installing Expansion Tube To Evaporator Tube (Body VIN Code 6)
    G01596569Courtesy of GENERAL MOTORS CORP.
  6. Install the evaporator tube nut.

    Tighten 

    Tighten the nut to 28 N.m (21 lb ft).

  7. Install the evaporator tube to the evaporator.
  8. Install the evaporator tube nut (5) to the evaporator.

    Tighten 

    Tighten the nut to 28 N.m (21 lb ft).

  9. Install the coolant reservoir. Refer to COOLANT RECOVERY RESERVOIR REPLACEMENT in Engine Cooling.
  10. Install the accumulator. Refer to ACCUMULATOR REPLACEMENT .
  11. Recharge the refrigerant system. Refer to REFRIGERANT RECOVERY AND RECHARGING .
  12. Leak test the fittings of the components using the J 39400.
    Fig 2: Installing Evaporator Tube Nut To Evaporator (Body VIN Code 6)
    G01596570Courtesy of GENERAL MOTORS CORP.
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