For 1990-2009 cars

### Removal Procedure

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

1. Disconnect the negative battery cable.
2. Disconnect the output shaft speed (OSS) sensor electrical connector.
3. Remove the OSS sensor retaining bolt.
4. Remove the OSS sensor from the transaxle.

### Installation Procedure

Important: 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.

Notice: Refer to Fastener Notice in the Preface section.

2. Install the OSS sensor and retaining bolt into the transaxle.

Tighten
Tighten the OSS sensor retaining bolt to 7.4 N·m (65 lb in).

3. Connect the OSS sensor electrical connector.
4. Connect the negative battery cable.