GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Oldsmobile 🢒 2003 🢒 Aurora 🢒 Engine 🢒 Engine Controls - 4.0L 🢒 Throttle Position Sensor Replacement

Removal Procedure

    Caution: Unless directed otherwise, the ignition and start switch must be in the OFF or LOCK position, and all electrical loads must be OFF before servicing any electrical component. Disconnect the negative battery cable to prevent an electrical spark should a tool or equipment come in contact with an exposed electrical terminal. Failure to follow these precautions may result in personal injury and/or damage to the vehicle or its components.

  1. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.

    2. Object Number: 475295 Size: SH
  2. Remove the nuts (2) from the fuel injector sight shield (1).

    3. Object Number: 574138 Size: SH
  3. Remove the idle air control (IAC) electrical connector (1) from the throttle position (TP) sensor (4).
  4. Remove the TP sensor electrical connector (2) from the TP sensor (3).

    5. Object Number: 573468 Size: SH
  5. Remove the throttle body assembly (2). Refer to Throttle Body Assembly Replacement .

    6. Object Number: 595108 Size: SH
  6. Remove the TP sensor mounting bolts (3) from the TP sensor (2).
  7. Remove the TP sensor (2) from the throttle body (1).
  8. Discard the O-ring.

Installation Procedure

    Object Number: 595108 Size: SH
  1. Install the new O-ring on to the TP sensor.

    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. Install the TP sensor (2) on to the throttle body (1).

    3. Tighten
    Tighten the TP sensor screws to 2.3 N·m (20  lb in).


    Object Number: 573468 Size: SH
  3. Install the throttle body assembly (2). Refer to Throttle Body Assembly Replacement .

    4. Object Number: 574138 Size: SH
  4. Install the TP sensor electrical connector (2) to the TP sensor (3).
  5. Install the IAC electrical connector (1) to the TP sensor (4).

    6. Caution: Unless directed otherwise, the ignition and start switch must be in the OFF or LOCK position, and all electrical loads must be OFF before servicing any electrical component. Disconnect the negative battery cable to prevent an electrical spark should a tool or equipment come in contact with an exposed electrical terminal. Failure to follow these precautions may result in personal injury and/or damage to the vehicle or its components.

  6. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.

    7. Object Number: 475295 Size: SH
  7. Install the fuel injector sight shield (1) to the engine.
  8. Install the fuel injector sight shield nuts (2) to the fuel injector sight shield (1).

    9. Tighten
    Tighten the TP sensor screws to 3 N·m (27 lb in).

  9. Install the rear seat cushion. Refer to Rear Seat Cushion Replacement in Seats .