GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Disconnect the negative battery cable. Refer to

    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.

    in General Information.
  2. Raise the vehicle. Support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  3. Disconnect the electrical connectors from both of the vehicle speed sensors.

  4. Object Number: 102535  Size: SH
  5. Remove the vehicle speed sensors from the transmission case.
  6. Inspect the speed sensors for damage.

Installation Procedure


    Object Number: 102535  Size: SH
  1. Install the vehicle speed sensors into the transmission case.
  2. Tighten
    Tighten the speed sensor bolt to 11 N·m (97 lb in).

    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. Connect the electrical connectors to both vehicle speed sensors.
  4. Remove the safety stands.
  5. Lower the vehicle.
  6. Connect the battery negative cable assembly to the battery negative terminal.
  7. Tighten
    Tighten the bolt to 15 N·m (11 lb ft).