GM Service Manual Online
For 1990-2009 cars only

Air Outlet Duct Replacement - Right 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: 648686  Size: SH
  3. Disconnect the right side window defroster duct from the HVAC module assembly.
  4. Remove the defroster duct from the clip.
  5. Disconnect the defroster duct from the right side window defogger adapter.
  6. Remove the defroster duct from the I/P carrier.
  7. Remove the right side window defogger adapter.

Installation Procedure

  1. Install the right side window defogger adapter.
  2. Install the right side defroster duct to the I/P carrier.
  3. Route the duct through the I/P carrier hole.


    Object Number: 648686  Size: SH
  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 right 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 - Right 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: 648687  Size: SH
  3. Disconnect the right side window defroster duct from the HVAC module assembly.
  4. Remove the defroster duct from the clip.
  5. Disconnect the defroster duct from the right side window defogger adapter.
  6. Remove the defroster duct from the I/P carrier.
  7. Remove the right side window defogger adapter.

Installation Procedure

  1. Install the right side window defogger adapter.
  2. Install the right side defroster duct to the I/P carrier.
  3. Route the duct through the I/P carrier hole.


    Object Number: 648687  Size: SH
  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 right side window defogger adapter.
  7. Install the I/P trim pad. Refer to Instrument Panel Trim Pad Replacement in Instrument Panel, Gages and Console.