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Engine Coolant Temperature Sensor (3MZ-FE): Replacement

  1. DISCONNECT ENGINE WIRE NO. 3 (BATTERY NEGATIVE TERMINAL) 
  2. REMOVE RADIATOR LOWER AIR DEFLECTOR (See  REPLACEMENT  ) 
  3. DRAIN ENGINE COOLANT (See  ENGINE COOLANT (3MZ-FE)  ) 
  4. REMOVE ENGINE COOLANT TEMPERATURE SENSOR 
    1. Disconnect the engine coolant temperature sensor connector.
    2. Using a deep socket wrench 19, remove the engine coolant temperature sensor and gasket.
    Fig 1: Removing Engine Coolant Temperature Sensor
    G02938992Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  5. INSTALL ENGINE COOLANT TEMPERATURE SENSOR 
    1. Using a deep socket wrench 19, install a new gasket and the engine coolant temperature sensor.
      1. Torque: 20 N.m (200 kgf.cm, 14 ft.lbf) 
    2. Connect the engine coolant temperature sensor connector.
  6. CONNECT ENGINE WIRE NO. 3 (BATTERY NEGATIVE TERMINAL) 
    1. Torque: 5.4 N.m (55 kgf.cm, 48 in..lbf) 
  7. ADD ENGINE COOLANT (See  ENGINE COOLANT (3MZ-FE)  ) 
  8. CHECK FOR ENGINE COOLANT LEAKS (See  COOLING SYSTEM (3MZ-FE)  ) 
  9. INSTALL RADIATOR LOWER AIR DEFLECTOR 
  10. SYSTEM INITIALIZATION (See  CHARGING SYSTEM (3MZ-FE)  )