Transfer Case Front Output Shaft Speed Sensor Replacement TrailBlazer EXT, Envoy XL, Envoy XUV

1. Raise the vehicle. Refer to Lifting and Jacking the Vehicle .



2. Disconnect the transfer case front speed sensor electrical connector.



3. Remove the transfer case front speed sensor.

Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

1. Install the transfer case front speed sensor.

Tighten
Tighten the speed sensor to 17 N·m (13 lb ft).




2. Connect the transfer case front speed sensor electrical connector.
3. Lower the vehicle. Refer to Lifting and Jacking the Vehicle .

Transfer Case Front Output Shaft Speed Sensor Replacement TrailBlazer, Envoy, Rainier

1. Raise the vehicle. Refer to Lifting and Jacking the Vehicle .
2. Remove the fuel tank shield, if equipped. Refer to Fuel Tank Shield Replacement .



3. Remove the transfer case front speed sensor electrical connector.



4. Remove the transfer case front speed sensor.

Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

1. Install the transfer case front speed sensor.

Tighten
Tighten the speed sensor to 17 N·m (13 lb ft).




2. Install the transfer case front speed sensor electrical connector.
3. Install the fuel tank shield, if equipped. Refer to Fuel Tank Shield Replacement .
4. Lower the vehicle. Refer to Lifting and Jacking the Vehicle .