GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 1998 🢒 Safari - 4WD 🢒 HVAC 🢒 HVAC Systems - Manual 🢒 Auxiliary Air Outlet Duct Replacement

Removal Procedure

    Object Number: 280469 Size: SH
  1. Remove the left D pillar garnish molding. Refer to Fourth Pillar Trim Replacement - Left Side in Interior Trim.
  2. Release the set screw in the side of the 2 piece duct.
  3. Slide the bottom half of the duct up into the top half.
  4. Swing the bottom edge of the duct toward the interior of the vehicle.
  5. Pull the top edge of the duct clear of the headliner duct.
  6. Remove the duct from the vehicle.

Installation Procedure

    Object Number: 280469 Size: SH
  1. Install the duct to the vehicle.
  2. Push the top edge of the duct into the headliner duct.
  3. Swing the bottom edge of the duct into the headliner duct.
  4. Swing the bottom edge of the duct into place over the auxiliary evaporator module.
  5. Slide the bottom half of the duct down onto the auxiliary evaporator module.

    6. 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.

  6. Tighten the set screw on the side of the duct.

    7. Tighten
    Tighten the set screw on the side of the duct to 2 N·m (18 lb in).

  7. Install the left D pillar garnish molding. Refer to Fourth Pillar Trim Replacement - Left Side in Interior Trim.