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Home >> Pontiac >> 2010 >> G5 Base, Automatic >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Controls And Fuel - 2.2L - Repair Instructions >> Repair Instructions >> Engine Coolant Temperature Sensor Replacement >> Installation Procedure
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Installation Procedure

CAUTION: Use care when handling the coolant sensor. Damage to the coolant sensor will affect the operation of the fuel control system.
    Fig 1: View Of ECT Sensor
    GM773501Courtesy of GENERAL MOTORS CORP.
  1. If you are reinstalling the original sensor, or if you are installing a NEW sensor without a sealer, coat the threads with sealant. Refer to Adhesives, Fluids, Lubricants, and Sealers .
    2. CAUTION: Refer to Component Fastener Tightening Caution .
  2. Install the ECT sensor and tighten to 20 N.m (15 lb ft).
    3. Fig 2: Identifying Engine Harness Electrical Connectors
    GM1648166Courtesy of GENERAL MOTORS CORP.
  3. If equipped with RPO M86, connect the engine harness electrical connector (3) to the ECT sensor.
    4. Fig 3: Identifying Engine Harness Electrical Connectors - Top Of Engine
    GM1647986Courtesy of GENERAL MOTORS CORP.
  4. If equipped with RPO MN5, connect the engine harness electrical connector (3) to the ECT sensor.
  5. Fill the cooling system. Refer to Cooling System Draining and Filling (Static Fill LE5, L61) or Cooling System Draining and Filling (GE 47716 Fill) .
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