2011 Lexus LS 460 AWDFACTORY OEM SERVICE PROCEDURE

Engine Coolant Temperature Sensor: Removal: Removal

  1. REMOVE V-BANK COVER SUB-ASSEMBLY  . See step  3
  2. REMOVE AIR CLEANER INLET COVER SUB-ASSEMBLY  . See step  4
  3. REMOVE NO. 1 AIR CLEANER INLET  . See step  5
  4. REMOVE INTAKE AIR CONNECTOR PIPE  . See step  8
  5. REMOVE NO. 1 ENGINE UNDER COVER  . Refer to REPLACEMENT - Step 4
  6. DRAIN ENGINE COOLANT  . Refer to REPLACEMENT - Step 5
  7. REMOVE ENGINE COOLANT TEMPERATURE SENSOR 
    1. Disconnect the engine coolant temperature sensor connector.
    2. Using a 19 mm ball joint lock nut wrench, remove the sensor and gasket.
      Fig 1: Locating Engine Coolant Temperature Sensor Connector
      GTY272936Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Remove the gasket from the engine coolant temperature sensor.
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.