GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 1998 🢒 Astro - 4WD 🢒 HVAC 🢒 Heating, Ventilation and Air Conditioning 🢒 Lap Air Outlet Duct Replacement - Left Side

Removal Procedure
  1. Remove the driver's knee bolster.

    2. Refer to Driver Knee Bolster Replacement in Instrument Panel and Gauges.

  2. Remove the retaining screws from the outlet duct.
  3. Remove the duct from the air distribution duct.
  4. Remove the outlet duct from the vehicle.

Installation Procedure
  1. Install the outlet duct to the vehicle.
  2. Install the duct to the air distribution duct.

    3. Notice: 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 screws that retain the outlet duct.

    4. Tighten
    Tighten the screws that retain the outlet duct to 2 N·m (18 lb in).

  4. Install the driver's knee bolster.

    5. Refer to Driver Knee Bolster Replacement in Instrument Panel and Gauges.