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Home >> Chevrolet >> 2011 >> Impala LTZ >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Controls And Fuel - 3.9L - Repair Instructions >> Repair Instructions >> Engine Coolant Temperature Sensor Replacement >> Installation Procedure
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Installation Procedure

CAUTION: 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.
    Fig 1: View Of ECT Sensor Electrical Connector
    GM1586322Courtesy of GENERAL MOTORS CORP.
  1. Coat the threads of the ECT sensor with sealer GM P/N 13246004 (Canadian P/N 10953480) or equivalent.
    2. CAUTION: Refer to Fastener Caution .
  2. Install the ECT sensor and tighten to 20 N.m (15 lb ft).
  3. Connect the ECT electrical connector.
  4. Install the intake manifold cover, if necessary. Refer to Intake Manifold Cover Replacement .
  5. Fill the cooling system. Refer to Cooling System Draining and Filling (9C1, 9C3 Static Fill) or Cooling System Draining and Filling (LZE, LGD Static Fill) or Cooling System Draining and Filling (LZE, LGD GE47716 Fill) .
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