GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 2001 🢒 LeSabre 🢒 Engine 🢒 Engine Controls - 3.8L 🢒 Air Cleaner Inlet Duct Replacement

Removal Procedure

    Object Number: 471749 Size: SH
  1. Disconnect the electrical connector (2) from the intake air temperature (IAT) sensor (1).

    2. Object Number: 55463 Size: SH
  2. Loosen the intake duct clamps.
  3. Remove the intake duct from the air cleaner and rotate the duct upwards.
  4. Remove the intake duct by pulling upwards and inboard.

Installation Procedure

    Object Number: 55463 Size: SH
  1. Install the intake duct on the throttle body.

    2. 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.

  2. Rotate the intake duct down and install the intake air duct onto the air cleaner.

    3. Tighten
    Tighten the intake duct clamp to 2 N·m (18 lb in).


    Object Number: 471749 Size: SH
  3. Connect the electrical connector (2) to the intake air temperature (IAT) sensor (1).