GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 858994  Size: SH
  1. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle.
  2. Disconnect the vehicle speed sensor (VSS) electrical connector (2).

  3. Object Number: 481937  Size: SH
  4. Remove the VSS bolt (2).
  5. Remove the VSS (1).
  6. Remove the O-ring seal (3).

Installation Procedure


    Object Number: 481937  Size: SH
  1. Install the O-ring seal (3) onto the VSS (1).
  2. Coat the O-ring seal (3) with a thin film of transmission fluid.
  3. Install the VSS (1).
  4. Caution: Refer to Fastener Caution in the Preface section.

  5. Install the VSS bolt (2).
  6. Tighten
    Tighten the bolt to 11 N·m (97 lb in).


    Object Number: 858994  Size: SH
  7. Connect the VSS electrical connector (2).
  8. Lower the vehicle.
  9. Refill the fluid as required.