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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 >> Expansion (Orifice) Tube Replacement >> Installation Procedure

Installation Procedure

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  1. Uncap or unplug the evaporator tube.
  2. Install the new O-ring seal. Refer to O-RING REPLACEMENT  .
  3. Install the short screen end of the new orifice (1) into the evaporator tube.
    NOTE: Refer to FASTENER NOTICE in Cautions and Notices.
  4. Connect the evaporator tube at the fitting.

    Tighten 

    Tighten the fitting to 25 N.m (18 lb ft).

  5. Evacuate and recharge the system. Refer to REFRIGERANT RECOVERY AND RECHARGING  .
  6. Leak test the fittings of the repaired component using J 39400-A  .
    Fig 1: Installing Expansion Tube
    G01454240Courtesy of GENERAL MOTORS CORP.
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