2005 Toyota Avalon XLSFACTORY OEM SERVICE PROCEDURE

Knock Control Sensor (2GR-FE): Replacement

  1. PREVENT GASOLINE FROM SPILLING OUT (SEE  PRECAUTION  ) 
  2. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL 
  3. DRAIN ENGINE COOLANT (SEE  COOLANT (2GR-FE)  ) 
  4. REMOVE WINDSHIELD WIPER MOTOR & LINK ASSY (SEE  REPLACEMENT  ) 
  5. REMOVE COWL TOP PANEL OUTER (SEE  REPLACEMENT  ) 
  6. REMOVE V-BANK COVER SUB-ASSY (SEE  REPLACEMENT  ) 
  7. REMOVE AIR CLEANER CAP WITH AIR CLEANER HOSE (SEE  REPLACEMENT  ) 
  8. REMOVE INTAKE AIR SURGE TANK (SEE  REPLACEMENT  ) 
  9. REMOVE INTAKE MANIFOLD (SEE  REPLACEMENT  ) 
  10. REMOVE KNOCK CONTROL SENSOR 
    1. Disconnect the 2 knock control sensor connectors.
    2. Remove the 2 bolts and 2 knock control sensors.
      Fig 1: Removing Knock Control Sensor
      G02973303Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  11. INSTALL KNOCK CONTROL SENSOR 
    1. Install the 2 knock control sensors with the 2 bolts as shown in Fig 2 .

      Torque: 20 N.m (204 kgf.cm, 15 ft.lbf) 

    2. Connect the 2 knock control sensor connectors.
      Fig 2: Installing Knock Control Sensor
      G02973304Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  12. INSTALL INTAKE MANIFOLD (SEE  REPLACEMENT  ) 
  13. INSTALL INTAKE AIR SURGE TANK (SEE  REPLACEMENT  ) 
  14. INSTALL AIR CLEANER CAP WITH AIR CLEANER HOSE (SEE  REPLACEMENT  ) 
  15. CONNECT CABLE TO NEGATIVE BATTERY TERMINAL 
  16. ADD ENGINE COOLANT (SEE  COOLANT (2GR-FE)  ) 
  17. CHECK FOR ENGINE COOLANT LEAKS (SEE  ON-VEHICLE INSPECTION  ) 
  18. INSPECT FOR FUEL LEAKS (SEE  ON-VEHICLE INSPECTION  ) 
  19. INSTALL V-BANK COVER SUB-ASSY (SEE  REPLACEMENT  ) 
  20. INSTALL COWL TOP PANEL OUTER (SEE  REPLACEMENT  ) 
  21. INSTALL WINDSHIELD WIPER MOTOR & LINK ASSY (SEE  REPLACEMENT  ) 
  22. PERFORM INITIALIZATION (SEE  INITIALIZATION  ) 

    Some systems need initialization when disconnecting the battery terminal.

  23. CHECK FUNCTION OF THROTTLE BODY (SEE  ON-VEHICLE INSPECTION  ) 
Factory Service Tools

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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.

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