GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 2004 🢒 Century 🢒 Engine 🢒 Engine Controls - 3.1L 🢒 Throttle Position Sensor Replacement

Removal Procedure
  1. Disconnect the fuel lines. Refer to Metal Collar Quick Connect Fitting Service .
  2. Disconnect the throttle position (TP) sensor electrical connector.

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

    4. Object Number: 201473 Size: SH
  4. Remove the TP sensor and the O-ring.

Installation Procedure

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

    2. Object Number: 201473 Size: SH
  2. Install the TP sensor.
  3. Apply a thread-locking compound to the TP sensor screws. Loctite® 262, GM P/N 12345493, (Canadian P/N 10953488) or equivalent should be used.

    4. 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.

  4. Install the 2 TP sensor screws.

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


    Object Number: 69065 Size: SH
  5. Connect the TP sensor electrical connector.
  6. Connect the fuel lines. Refer to Metal Collar Quick Connect Fitting Service .