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Home >> Chevrolet >> 2009 >> TrailBlazer 6.0 H, AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System & Fuel System - 5.3L & 6.0L - Introduction >> Repair Instructions >> Engine Coolant Temperature Sensor Replacement >> Removal Procedure
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Removal Procedure

    CAUTION: Use care when handling the coolant sensor. Damage to the coolant sensor will affect the operation of the fuel control system.
  1. Turn OFF the ignition.
    2. Fig 1: View Of ECT Sensor Electrical Connector And Ground
    GM898343Courtesy of GENERAL MOTORS CORP.
  2. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle .
  3. Drain the cooling system below the level of the ECT sensor. Refer to Cooling System Draining and Filling (LL8) or Cooling System Draining and Filling (LH6, LS2) .
  4. Lower the vehicle.
  5. Disconnect the engine coolant temperature (ECT) sensor electrical connector (1).
    6. Fig 2: Locating ECT Sensor
    GM50974Courtesy of GENERAL MOTORS CORP.
  6. Remove the ECT sensor.
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