GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

    Warning: Refer to Battery Disconnect Warning in the Preface section.


    Object Number: 1245833  Size: SH
  1. Disconnect the negative battery cable.
  2. Disconnect the output shaft speed (OSS) sensor electrical connector.

  3. Object Number: 1245832  Size: SH
  4. Remove the OSS sensor retaining bolt.
  5. Remove the OSS sensor from the transaxle.

Installation Procedure


    Object Number: 1245835  Size: SH

    Note: Lubricate the O-ring with T-IV Automatic Transmission Fluid GM P/N 88900925 (Canadian P/N 22689186).

  1. Install a new O-ring on the OSS sensor.
  2. Caution: Refer to Fastener Caution in the Preface section.

  3. Install the OSS sensor.
  4. Install the OSS sensor bolt and tighten to 7 N·m (62 lb in).

  5. Object Number: 1245833  Size: SH
  6. Connect the OSS sensor electrical connector.
  7. Connect the negative battery cable.