GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 2000 🢒 LeSabre 🢒 Preface 🢒 Cautions and Notices 🢒 Air Cleaner Assembly Replacement

Removal Procedure

    Object Number: 471749 Size: SH
  1. Remove the electrical connector (2) from the IAT sensor (1).

    2. Object Number: 55463 Size: SH
  2. Loosen the clamp securing the intake air duct to the upper air cleaner assembly.

    3. Object Number: 444496 Size: SH
  3. Carefully remove the intake air duct from the throttle body and upper air cleaner assembly (1).
  4. Remove the 2 screws (2) from the upper air cleaner assembly.
  5. Remove the upper air cleaner housing cover assembly (1).
  6. Without disconnecting the PCM connectors, remove the PCM (4) and the harness from the lower air cleaner assembly (3).

    7. Object Number: 444479 Size: SH
  7. Carefully remove lower the air cleaner assembly (1) by pulling the assembly from the 2 rubber grommets in the engine compartment.
  8. Inspect the assembly for signs of damage and replace if required.

Installation Procedure

    Object Number: 444479 Size: SH
  1. Carefully install the PCM housing by pushing the lower air cleaner assembly (1) into the 2 rubber grommets (2) in the engine compartment.

    2. Object Number: 444496 Size: SH
  2. Carefully install the PCM (4) and the harness into the lower air cleaner housing (3).
  3. Install the upper air cleaner housing cover assembly (1).

    4. 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.

  4. Install the 2 screws (2) into the upper and lower air cleaner assembly sections.

    5. Tighten
    Tighten the screws to 4 N·m (35 lb in).

  5. Carefully reinstall the intake air duct to the throttle body and upper air cleaner assembly (1).
  6. Tighten the clamp securing the air intake duct to the upper air cleaner assembly (1).

    7. Tighten
    Tighten the screws to 2 N·m (18 lb in).