GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Oldsmobile 🢒 1998 🢒 Silhouette Ext. 🢒 HVAC 🢒 HVAC Systems - Manual 🢒 Auxiliary Air Distributor Duct Replacement

Removal Procedure
  1. Remove the left side quarter trim. Refer to Rear Quarter Lower Trim Panel Replacement in Interior Trim.
  2. Remove the headliner. Refer to Headlining Trim Panel Replacement in Interior Trim.
  3. Remove the clips that are retaining the air ducts.

    4. Object Number: 300000 Size: SH
  4. Remove the mid upper air distribution duct from the C-pillar.

    5. Object Number: 300003 Size: SH
  5. Remove the bottom air distribution duct from the C-pillar.

    6. Object Number: 299996 Size: SH
  6. Remove the middle air distribution duct from the rear quarter.

Installation Procedure

    Object Number: 299996 Size: SH
  1. Install the middle air distribution duct from the rear quarter.

    2. Object Number: 300003 Size: SH
  2. Install the bottom air distribution duct from the C-pillar.

    3. Object Number: 300000 Size: SH
  3. Install the mid upper air distribution duct from the C-pillar.
  4. Install the retaining clips to the air duct system.
  5. Install the headliner. Refer to Headlining Trim Panel Replacement in Interior Trim.
  6. Install the left side quarter trim. Refer to Rear Quarter Lower Trim Panel Replacement in Interior Trim.