GrandPrix, Impala 2006-2008, Monte Carlo 2006-2007

Removal & Installation

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3.1L & 3.4L Engines




NOTE
Use care when handling the coolant sensor. Damage to the coolant sensor will affect the operation of the fuel control system.

  1. Drain and recycle the engine coolant.
  2.  
  3. Disconnect the Engine Coolant Temperature (ECT) sensor electrical connector.
  4.  
  5. Remove the ECT sensor.

    Click image to see an enlarged view

    Fig. Removing and installing ECT sensor-3.1L and 3.4L engines

  6.  

To install:


NOTE
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.


NOTE
Use care when handling the coolant sensor. Damage to the coolant sensor will affect the operation of the fuel control system.

  1. Coat the threads with sealer GM P/N 12346004 (Canadian P/N 10953480) or equivalent.
    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.  
  3. Install the ECT sensor and tighten to 15 ft. lbs. (20 Nm).
  4.  
  5. Connect the ECT electrical connector.
  6.  
  7. Fill the cooling system.
  8.  

3.5L & 3.9L Engines




NOTE
Use care when handling the coolant sensor. Damage to the coolant sensor will affect the operation of the fuel control system.

  1. Drain and recycle the engine coolant.
  2.  
  3. Remove the intake manifold cover, if necessary.
  4.  
  5. Remove the exhaust crossover.
  6.  
  7. Disconnect the Engine Coolant Temperature (ECT) sensor electrical connector.
  8.  
  9. Remove the ECT sensor.

    Click image to see an enlarged view

    Fig. Removing and installing ECT sensor-3.5L and 3.9L engines

  10.  

To install:


NOTE
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. Coat the threads with sealer GM P/N 12346004 (Canadian P/N 10953480) or equivalent.
    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.  
  3. Install the ECT sensor and tighten to 15 ft. lbs. (20 Nm).
  4.  
  5. Connect the ECT electrical connector.
  6.  
  7. Install the intake manifold cover, if necessary.
  8.  
  9. Install the exhaust crossover.
  10.  
  11. Fill the cooling system.
  12.  

3.8L & 5.3L Engines




NOTE
Use care when handling the coolant sensor. Damage to the coolant sensor will affect the operation of the fuel control system.

  1. Partially drain the cooling system.
  2.  
  3. Disconnect the ECT sensor electrical connector.
  4.  
  5. Remove the ECT sensor.

    Click image to see an enlarged view

    Fig. Removing and installing ECT sensor-3.8L engine



    Click image to see an enlarged view

    Fig. Removing and installing ECT sensor-5.3L engine

  6.  

To install:


NOTE
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.


NOTE
Use care when handling the coolant sensor. Damage to the coolant sensor will affect the operation of the fuel control system.

  1. Coat the threads with sealer GM P/N 12346004 (Canadian P/N 10953480) or equivalent.
    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.  
  3. Install the ECT sensor and tighten to 15 ft. lbs. (20 Nm).
  4.  
  5. Connect the ECT electrical connector.
  6.  
  7. Fill the cooling system.
  8.  

 
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