GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2009 🢒 Express - AWD 🢒 Transmission 🢒 Automatic Transmission - 4L80-E/4L85-E 🢒 Vehicle Output Speed Sensor Replacement

Removal Procedure

    Object Number: 686957 Size: SH
  1. Raise the vehicle. Refer to Lifting and Jacking the Vehicle.

    2. Note: This procedure is for 2WD vehicles. If the vehicle is equipped with 4WD, the output speed sensor is located on the transfer case.

  2. Disconnect the output speed sensor (2) electrical connector.
  3. Remove the output speed sensor bolt.
  4. Remove the output speed sensor (2) and the bracket assembly from the case.
  5. Inspect the output speed sensor assembly (2) for any evidence of damage.

Installation Procedure

    Object Number: 686957 Size: SH
  1. Lubricate the output speed sensor seal with automatic transmission fluid.
  2. Install the output speed sensor (2) and the bracket assembly.

    3. Caution: Refer to Fastener Caution in the Preface section.

  3. Install the bolt and tighten to 11 N·m (96 lb in).
  4. Connect the output speed sensor electrical connector.
  5. Lower the vehicle.