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Home >> Chevrolet >> 2006 >> Silverado 1500 HD, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 222 (Heating, Ventilation And Air Conditioning) >> Repair Instructions >> Thermal Expansion Valve Replacement - Auxiliary >> Installation Procedure

Installation Procedure

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  1. Install the TXV to the core.
    CAUTION: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.
  2. Connect the evaporator tube connections to the TXV.

    Tighten 

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

    Important  : Install the clip and the tube in the location and the orientation as noted during the disassembly.

  3. Install the clip in order to retain the capillary tube to the evaporator core.
  4. Pack sealer around the TXV in the manner found during the disassembly.
  5. Install the evaporator core. Refer to Evaporator Core Replacement - Auxiliary .
    Fig 1: Installing Thermal Expansion Valve
    G01217020Courtesy of GENERAL MOTORS CORP.
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