Vue 2006-2007

Removal & Installation

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2.2L Engine



  1. Before servicing the vehicle, refer to the Precautions Section.
  2.  
  3. Turn the ignition OFF.
    NOTE
    Engine coolant must be drained below the level of the Engine Coolant Temperature (ECT) sensor.

  4.  
  5. Disconnect the ECT sensor harness connector.
  6.  
  7. Remove the ECT.
  8.  

To install:


NOTE
Tap out sensor mounting hole in the engine head to remove any thread sealant residue. Clean any sealant residue from old sensor and apply RTV sealant to threads if the old sensor is going to be reused.

  1. Apply thread sealant Saturn P/N 21485277 Loctite 242® Threadlocker, or equivalent, to sensor threads.
  2.  
  3. Install the ECT sensor. Tighten the engine coolant temperature sensor to 89 inch lbs. (10 Nm).
  4.  
  5. Connect the ECT sensor harness connector. Push in the connector until a click is heard, then pull back to confirm a positive engagement.
  6.  
  7. Fill engine coolant to proper level.
  8.  

2.4L Engine



  1. Before servicing the vehicle, refer to the Precautions Section.
    WARNING
    Use care when handling the coolant sensor. Damage to the coolant sensor will affect the operation of the fuel control system.

  2.  
  3. Drain the cooling system.
  4.  
  5. Disconnect the engine wiring harness electrical connector from the Engine Coolant Temperature (ECT) sensor.
  6.  
  7. Remove the ECT sensor.
  8.  

To install:


WARNING
Replacement components must be the correct part number for the application. Components requiring the use of the thread locking compound, lubricants, corrosion inhibitors, or sealants are identified in the service procedure. Some replacement components may come with these coatings already applied. Do not use these coatings on components unless specified. These coatings can affect the final torque, which may affect the operation of the component. Use the correct torque specification when installing components in order to avoid damage.

  1. If reinstalling the original sensor, or if installing a NEW sensor without a sealer, coat the threads with sealant.
  2.  
  3. Install the ECT sensor. Tighten the sensor to 15 ft. lbs. (20 Nm).
  4.  
  5. Connect the engine wiring harness electrical connector to the ECT sensor.
  6.  
  7. Fill the cooling system to the proper level.
  8.  

3.5L Engine



Sensor 1
  1. Before servicing the vehicle, refer to the Precautions Section.
  2.  
  3. Drain the coolant to a level below the Engine Coolant Temperature (ECT) sensor.
  4.  
  5. Disconnect the engine wiring harness electrical connector from the ECT sensor.
  6.  
  7. Remove the ECT sensor and O-ring seal.
  8.  

To install:


NOTE
Clean out the sensor hole with a tap in order to remove any thread sealant residue. Clean any sealant residue from the old sensor and apply sealant to the threads if the old sensor is being reused.

  1. Apply thread sealant SA P/N 21485277, Loctite 242® Threadlocker, or equivalent to the sensor threads.
  2.  
  3. Install the NEW ECT sensor with a new O-ring. Tighten the sensor to 13 ft. lbs. (18 Nm).
  4.  
  5. Connect the engine wiring harness electrical connector to the ECT sensor.
  6.  
  7. Fill the cooling system to the proper level.
  8.  

Sensor 2
  1. Before servicing the vehicle, refer to the Precautions Section.
  2.  
  3. Drain the coolant to a level below the Engine Coolant Temperature (ECT) sensor.
  4.  
  5. Disconnect the engine wiring harness electrical connector (1) from the ECT sensor.
  6.  
  7. Remove the ECT sensor (2) and O-ring seal (3).

    Click image to see an enlarged view

    Fig. Engine Coolant Temperature (ECT) sensor location (sensor 2)-3.5L engine

  8.  

To install:


NOTE
Clean out the sensor hole with a tap in order to remove any thread sealant residue. Clean any sealant residue from the old sensor and apply sealant to the threads if the old sensor is being reused.

  1. Apply thread sealant SA P/N 21485277, Loctite 242® Threadlocker, or equivalent to the sensor threads.
  2.  
  3. Install the NEW ECT sensor (2) with a new O-ring (3). Tighten the sensor to 13 ft. lbs. (18 Nm).
  4.  
  5. Connect the engine wiring harness electrical connector (1) to the ECT sensor.
  6.  
  7. Fill the cooling system to the proper level.
  8.  

 
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