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Friday, October 14, 2011

How to replace Wheel Speed Sensors on 2006 Chevrolet Cobalt ?


Wheel Speed Sensors


Removal & Installation



Automatic Transaxle
4T45-E
  1. Before servicing the vehicle, refer to the Precautions Section.
    WARNING
    Unless directed otherwise, the ignition and start switch must be in the OFF or LOCK position, and all electrical loads must be OFF before servicing any electrical component. Disconnect the negative battery cable to prevent an electrical spark should a tool or equipment come in contact with an exposed electrical terminal. Failure to follow these precautions may result in personal injury and/or damage to the vehicle or its components.
  2. Disconnect the negative battery cable.
  3. Raise and support the vehicle.

    Click image to see an enlarged view
    Fig. Remove the retaining stud and pull the speed sensor straight out-automatic transaxle
  4. Remove the electrical connector at the vehicle speed sensor.
  5. Remove the retaining stud.
  6. Pull the sensor straight out in order to avoid damage to the case.
To install:
  1. Make sure the vehicle speed sensor is clean and dry.
    NOTE
    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.
  2. Install the vehicle speed sensor and the retaining bolt. Tighten the stud to 97 inch lbs. (12 Nm).
  3. Install the electrical connector at the sensor.
  4. Lower the vehicle.
  5. Connect the negative battery cable. Tighten the terminal bolt to 11 ft. lbs. (15 Nm).
Front
Getrag 5-Speed
  1. Before servicing the vehicle, refer to the Precautions Section.
    WARNING
    Unless directed otherwise, the ignition and start switch must be in the OFF or LOCK position, and all electrical loads must be OFF before servicing any electrical component. Disconnect the negative battery cable to prevent an electrical spark should a tool or equipment come in contact with an exposed electrical terminal. Failure to follow these precautions may result in personal injury and/or damage to the vehicle or its components.
  2. Disconnect the negative battery cable.
  3. Remove the left front wheel.

    Click image to see an enlarged view
    Fig. Location of the Vehicle Speed Sensor (VSS) electrical connector (2)


    Click image to see an enlarged view
    Fig. Remove the retainer bolt and retainer. Remove the Vehicle Speed Sensor (VSS)
  4. Disconnect the Vehicle Speed Sensor (VSS) electrical connector (2).
  5. Remove the retainer bolt.
  6. Remove the retainer.
  7. Remove the VSS.
  8. Remove and discard the O-ring.
To install:
  1. Lubricate a new O-ring with clean transaxle fluid.
  2. Install the new O-ring.
  3. Install the VSS retainer.
  4. Install the VSS assembly.
  5. Install the VSS retainer bolt. Tighten the bolt to 80 inch lbs. (9 Nm).
  6. Connect the VSS connector to the VSS (2).
  7. Install the left front wheel. Tighten lug nuts to 100 ft. lbs (140 Nm).
  8. Connect the negative battery cable.
Manual Transaxle
Getrag 5-Speed
  1. Before servicing the vehicle, refer to the Precautions Section.
    WARNING
    Unless directed otherwise, the ignition and start switch must be in the OFF or LOCK position, and all electrical loads must be OFF before servicing any electrical component. Disconnect the negative battery cable to prevent an electrical spark should a tool or equipment come in contact with an exposed electrical terminal. Failure to follow these precautions may result in personal injury and/or damage to the vehicle or its components.
  2. Disconnect the negative battery cable.
  3. Disconnect the Vehicle Speed Sensor (VSS) electrical connector.

    Click image to see an enlarged view
    Fig. Remove the retainer bolt and the retainer. Pull up on the Vehicle Speed Sensor (VSS) in order to remove it from the transaxle-Getrag 5-Speed
  4. Remove the retainer bolt.
  5. Remove the retainer.
  6. Pull up on the VSS in order to remove the VSS from the transaxle.
  7. Remove the O-ring.
To install:
  1. Lubricate a new O-ring with DEXRON III transaxle fluid.
  2. Install the new O-ring.
  3. Install the VSS assembly.
  4. Install the VSS retainer.
    NOTE
    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.
  5. Install the VSS retainer bolt. Tighten the bolt to 106 inch lbs. (12 Nm).
  6. Connect the VSS connector to the VSS.
  7. Lower the vehicle.
  8. Connect the negative battery cable.
MU3
  1. Before servicing the vehicle, refer to the Precautions Section.
    WARNING
    Unless directed otherwise, the ignition and start switch must be in the OFF or LOCK position, and all electrical loads must be OFF before servicing any electrical component. Disconnect the negative battery cable to prevent an electrical spark should a tool or equipment come in contact with an exposed electrical terminal. Failure to follow these precautions may result in personal injury and/or damage to the vehicle or its components.
  2. Disconnect the negative battery cable.
  3. Remove the left front wheel.

    Click image to see an enlarged view
    Fig. Location of the Vehicle Speed Sensor (VSS) electrical connector (2)


    Click image to see an enlarged view
    Fig. Remove the retainer bolt and retainer. Remove the Vehicle Speed Sensor (VSS)
  4. Disconnect the Vehicle Speed Sensor (VSS) electrical connector (2).
  5. Remove the retainer bolt.
  6. Remove the retainer.
  7. Remove the VSS.
  8. Remove and discard the O-ring.
To install:
  1. Lubricate a new O-ring with clean transaxle fluid.
  2. Install the new O-ring.
  3. Install the VSS retainer.
  4. Install the VSS assembly.
  5. Install the VSS retainer bolt. Tighten the bolt to 80 inch lbs. (9 Nm).
  6. Connect the VSS connector to the VSS (2).
  7. Install the left front wheel. Tighten lug nuts to 100 ft. lbs (140 Nm).
  8. Connect the negative battery cable.



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