GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

Warning: In order to avoid being burned, do not service the exhaust system while it is still hot. Service the system when it is cool.


    Object Number: 1646124  Size: SH
  1. Disconnect the vehicle speed sensor electrical connector.
  2. Remove the speedometer assembly retaining bolt, then remove the assembly from the transaxle.

  3. Object Number: 1646130  Size: SH
  4. Disconnect the vehicle speed sensor from the speedometer driven gear (2).

Inspection Procedure


    Object Number: 1223653  Size: SH
  1. Remove the O-ring (2) from the speedometer driven gear housing.
  2. Remove the driven gear pin (1) and disconnect the driven gear (3).
  3. Inspect for a damaged or torn O-ring.
  4. Inspect for a worn or damaged tooth of driven gear.

Installation Procedure


    Object Number: 1646130  Size: SH
  1. Install the vehicle speed sensor (1) on the driven gear assembly.
  2. Caution: Refer to Fastener Caution in the Preface section.


    Object Number: 1646124  Size: SH
  3. Install the vehicle speed sensor and driven gear assembly into the transaxle, then install the retaining bolt and tighten to 4-7 N·m (35-62 lb in).
  4. Connect the vehicle speed sensor electrical connector to the vehicle speed sensor.