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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1844 (Engine Controls And Fuel - 2.4L (Lat) - Introduction (2 Of 2)) >> Repair Instructions >> Engine Coolant Temperature Sensor Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2007 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: Use care when handling the coolant sensor. Damage to the coolant sensor will affect the operation of the fuel control system.
    Fig 1: Identifying Engine Wiring Harness Electrical Connector
    GM1812206Courtesy of GENERAL MOTORS CORP.
  1. Drain the cooling system. Refer to Draining and Filling Cooling System (Static Fill) or Draining and Filling Cooling System (GE 47716 Fill) .
  2. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
  3. Disconnect the engine wiring harness electrical connector (2) from the auxiliary heater water pump.
  4. Disconnect the engine wiring harness electrical connector (1) from the engine coolant temperature (ECT) sensor.
    5. Fig 2: Auxiliary Heater Water Pump Bolt And Pump
    GM1814527Courtesy of GENERAL MOTORS CORP.
  5. Remove the auxiliary heater water pump bolt and reposition the pump out of the way.
    6. Fig 3: Locating ECT Sensor
    GM1812215Courtesy of GENERAL MOTORS CORP.
  6. Remove the ECT sensor.
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