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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 >> Evaporator Tube Replacement - Front >> Installation Procedure

Installation Procedure

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  1. Install the new sealing washers. Refer to Sealing Washer Replacement .
  2. Install the front evaporator tube into the vehicle.
  3. Install the front evaporator tube to the rear evaporator tube.
    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.
  4. Install the rear evaporator tube retaining nut.

    Tighten 

    Tighten the nut to 16 N.m (12 lb ft).

  5. Install the evaporator inlet hose to the front evaporator tube.
    Fig 1: Installing Evaporator Inlet Hose To Front Evaporator Tube
    G01216918Courtesy of GENERAL MOTORS CORP.
  6. Install the evaporator inlet hose nut to the front evaporator tube.

    Tighten 

    Tighten the nut (1) to 16 N.m (12 lb ft).

    Fig 2: Installing Evaporator Inlet Hose Nut To Front Evaporator Tube
    G01216919Courtesy of GENERAL MOTORS CORP.
  7. Install the front evaporator tube to the condenser.
  8. Install the front evaporator tube nut (1) to the condenser.

    Tighten 

    Tighten the nut to 16 N.m (12 lb ft).

  9. Install the grille.
  10. Install the coolant recover reservoir. Refer to Coolant Recovery Reservoir Replacement in Engine Cooling .
  11. Evacuate and recharge the A/C system. Refer to Refrigerant Recovery and Recharging .
  12. Leak test the fittings of the components using the J-39400-A  .
    Fig 3: Installing Front Evaporator Tube Nut To Condenser
    G01216920Courtesy of GENERAL MOTORS CORP.
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