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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 >> Mode Door Replacement - Lower >> Installation Procedure

Installation Procedure

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  1. Install the lower mode door (1) to the heater assembly (2).
  2. Install the heater assembly cover.
    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.
  3. Install the heater assembly retaining screws.

    Tighten 

    Tighten screws to 1.9 N.m (17 lb in).

    Fig 1: Installing Lower Mode Door
    G01216993Courtesy of GENERAL MOTORS CORP.
  4. Install the linkage to the lower mode actuator (2).
  5. Install the lower mode actuator (2) to the heater assembly.
  6. Connect the vacuum hose to the lower mode actuator (2).
  7. Install the heater assembly. Refer to Heater Assembly Replacement .
    Fig 2: Installing Lower Mode Actuator & Connecting Vacuum Hose
    G01216994Courtesy of GENERAL MOTORS CORP.
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