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Home >> Pontiac >> 2005 >> Aztek Base, FWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - 3.4L - Introduction >> Repair Instructions >> Engine Coolant Temperature (ECT) Sensor Replacement >> Removal Procedure

Removal Procedure

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  1. Turn OFF the ignition.
    2. NOTE: 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, Connector And Wiring Harness At Fuel Rail
    GM15986Courtesy of GENERAL MOTORS CORP.
  2. Drain the coolant below the level of the engine coolant temperature (ECT) sensor. Refer to Draining and Filling Cooling System in Engine Cooling.
  3. Disconnect the sensor electrical connector.
  4. Carefully remove the ECT sensor.
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