GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Oldsmobile 🢒 1998 🢒 Silhouette Ext. 🢒 HVAC 🢒 HVAC Systems - Manual 🢒 Passenger Compartment Air Filter Replacement

Removal Procedure
  1. Open the instrument panel compartment door.
  2. Remove the rear compartment door.

    3. Object Number: 400664 Size: SH
  3. Open the heater A/C module access door.

    4. Object Number: 400661 Size: SH
  4. Pull out and remove the first passenger compartment air filter.
  5. Slide the second passenger compartment air filter to the opening.

    6. Pull out and remove the second passenger compartment air filter.

Installation Procedure

    Object Number: 400661 Size: SH
  1. Insert the first passenger compartment air filter into the opening.

    2. Slide over and install the first passenger compartment air filter.

  2. Slide the second passenger compartment air filter directly into the opening.

    3. Install the second passenger compartment air filter.


    Object Number: 400664 Size: SH
  3. Close the heater A/C module access door.
  4. Install the rear compartment door.
  5. Close the instrument panel door.