GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 2000 🢒 Century (China) 🢒 Engine 🢒 Engine Controls - 2.5L (LB8) and 3.0L (L46) 🢒 Throttle Position Sensor Replacement

Removal Procedure

    Object Number: 69065 Size: SH
  1. Disconnect the throttle position (TP) sensor electrical connector.

    2. Object Number: 201482 Size: SH
  2. Remove the 2 TP sensor attaching screws.

    3. Object Number: 201473 Size: SH
  3. Remove the TP sensor.

    4. Object Number: 201503 Size: SH
  4. Remove the TP sensor O-ring.

Installation Procedure

    Object Number: 201503 Size: SH
  1. Install the TP sensor O-ring.

    2. Object Number: 201473 Size: SH
  2. With the throttle valve in the normal closed idle position, install the TP sensor on the throttle body assembly.

    3. Object Number: 201482 Size: SH

    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.

  3. Reinstall the 2 TP sensor attaching screws, using a thread-locking compound on the screws. LOCTITE ® 262, GM Part No. 1052624, or equivalent should be used.

    4. Tighten
    Tighten the TP sensor attaching screws to 2.0 N·m (18 lb in).


    Object Number: 69065 Size: SH
  4. Connect the TP sensor electrical connector.