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Removal Procedure

NOTE: Use care when handling the coolant sensor. Damage to the coolant sensor will affect the operation of the fuel control system.
Fig 1: Locating ECT Sensor, Boost Control Solenoid, & IAT Sensor
GM1389396Courtesy of GENERAL MOTORS CORP.
  1. Turn OFF the ignition.
  2. Drain the coolant system to below the engine coolant temperature (ECT) sensor. Refer to Draining and Filling Cooling System (2.2L (L61), 2.4L (LE5) Static Fill) or Draining and Filling Cooling System (2.0L (LSJ) Static Fill) or Draining and Filling Cooling System (GE 47716 Fill) in Engine Cooling.
  3. Disconnect the engine coolant temperature ECT sensor electrical connector.
  4. Carefully remove the ECT sensor (1).
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