GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 2000 🢒 LeSabre 🢒 Engine 🢒 Engine Controls - 3.8L 🢒 Throttle Body Air Inlet Screen Replacement

Removal Procedure
  1. Turn OFF the ignition.

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

    3. Object Number: 210987 Size: SH
  3. Remove the air intake duct.

    4. Object Number: 180140 Size: SH
  4. Remove the snap ring (3) from the throttle body (1).
  5. Remove the air inlet screen (2) from the throttle body.

Installation Procedure

    Object Number: 180140 Size: SH
  1. Install the air inlet screen (2) into the throttle body (1).
  2. Install the snap ring (3) onto the throttle body.

    3. 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.


    Object Number: 210987 Size: SH
  3. Install the air intake duct.

    4. Tighten
    Tighten the air intake tube clamp to 2 N·m (18 lb in).


    Object Number: 471749 Size: SH
  4. Connect the electrical connector (2) to the IAT sensor (1).