FixVault

Removal Procedure

  1. Turn the ignition OFF.
  2. IMPORTANT: Engine coolant must be drained below the level of the engine coolant temperature sensor (ECT) sensor. Refer to Draining and Filling Cooling System in Engine Cooling.
  3. Disconnect the ECT sensor harness connector.
  4. Remove the ECT.
    Fig 1: Locating Engine Coolant Temperature Sensor (L61)
    GM951591Courtesy of GENERAL MOTORS CORP.