GM Service Manual Online
For 1990-2009 cars only

Air Outlet Duct Replacement - Left Defogger Chevrolet

Removal Procedure

  1. Remove the I/P trim pad. Refer to Instrument Panel Trim Pad Replacement in Instrument Panel, Gages and Console.

  2. Object Number: 648680  Size: SH
  3. Disconnect the left side window defroster duct from the HVAC module.
  4. Remove the defroster duct from the clips.
  5. Disconnect the defroster duct from the left side window defogger adapter.
  6. Remove the defroster duct from the I/P carrier.
  7. Remove the left side window defogger adapter.

Installation Procedure


    Object Number: 648680  Size: SH
  1. Install the left side window defogger adapter.
  2. Install the defroster duct to the I/P carrier.
  3. Route the duct through the I/P carrier hole.

  4. Push the defroster duct to the clip and seat.
  5. Connect the defroster duct to the HVAC module assembly.
  6. Connect the defroster duct to the left side window defogger adapter.
  7. Install the I/P trim pad. Refer to Instrument Panel Trim Pad Replacement in Instrument Panel, Gages and Console.

Air Outlet Duct Replacement - Left Defogger Pontiac

Removal Procedure

  1. Remove the I/P trim pad. Refer to Instrument Panel Trim Pad Replacement in Instrument Panel, Gages and Console.

  2. Object Number: 648685  Size: SH
  3. Disconnect the left side window defroster duct from the HVAC module.
  4. Remove the defroster duct from the clips.
  5. Disconnect the defroster duct from the left side window defogger adapter.
  6. Remove the defroster duct from the I/P carrier.
  7. Remove the left side window defogger adapter.

Installation Procedure


    Object Number: 648685  Size: SH
  1. Install the left side window defogger adapter.
  2. Install the defroster duct to the I/P carrier.
  3. Route the duct through the I/P carrier hole.

  4. Push the defroster duct to the clip and seat.
  5. Connect the defroster duct to the HVAC module.
  6. Connect the defroster duct to the left side window defogger adapter.
  7. Install the I/P trim pad. Refer to Instrument Panel Trim Pad Replacement in Instrument Panel, Gages and Console.