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Home >> Cadillac >> 2006 >> DTS 4.6 9 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - 4.6L - Introduction (2 Of 2) >> Repair Instructions >> Engine Coolant Temperature (ECT) Sensor Replacement >> Removal Procedure

Removal Procedure

NOTE: Use care when handling the coolant sensor. Damage to the coolant sensor will affect the operation of the fuel control system.
  1. Remove the fuel injector sight shield. Refer to Fuel Injector Sight Shield Replacement .
  2. Drain the cooling system. Refer to Draining and Filling Cooling System (Static Fill) or Draining and Filling Cooling System (Vac-N-Fill) .
    3. Fig 1: Component Locations - Upper Engine
    GM1663209Courtesy of GENERAL MOTORS CORP.
  3. Disconnect the engine harness electrical connector (6) from the engine coolant temperature (ECT) sensor.
    4. Fig 2: ECT Sensor
    GM1670866Courtesy of GENERAL MOTORS CORP.
  4. Remove the ECT sensor.
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