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Knock Sensor: Removal

  1. DISCHARGE FUEL SYSTEM PRESSURE (See  REMOVAL  ) 
  2. DRAIN COOLANT (See  COOLANT  ) 
  3. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL 
    CAUTION: Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to prevent airbag and seat belt pretensioner activation.
  4. REMOVE FRONT WIPER ARM HEAD CAP (See  REMOVAL  ) 
  5. REMOVE FRONT WIPER ARM LH (See  REMOVAL  ) 
  6. REMOVE FRONT WIPER ARM RH (See  REMOVAL  ) 
  7. REMOVE HOOD TO COWL TOP SEAL (See  REMOVAL  ) 
  8. REMOVE COWL TOP VENTILATOR LOUVER LH (See  REMOVAL  ) 
  9. REMOVE WIPER LINK (See  REMOVAL  ) 
  10. REMOVE COWL TOP PANEL OUTER 
    1. Remove the wire harness clamp.
    2. Remove the 7 bolts and panel.
      Fig 1: Removing Cowl Top Panel Outer Bolts
      G04869376Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  11. REMOVE COWL BODY MOUNTING BRACKET LOWER LH 
    1. Remove the bolt, clip and bracket.
      2. Fig 2: Locating Cowl Body Mounting Bracket Bolt And Clip (LH)
      G04869377Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  12. REMOVE ENGINE COVER (See  REMOVAL  )
  13. REMOVE AIR CLEANER CAP (See  REMOVAL  )
  14. REMOVE THROTTLE BODY (See  REMOVAL  )
  15. REMOVE FUEL DELIVERY PIPE (See  REMOVAL  ) 
  16. REMOVE FUEL TUBE 
    1. Remove the fuel tube clamp.
    2. Pinch the retainer as illustrated, and then pull the fuel tube connector out of the pipe.
      NOTE:
      • Remove any dirt and foreign objects on the fuel tube connector before performing this work.
        Fig 3: Removing Fuel Tube
        G04869378Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      • When disconnecting the connector, do not damage the connector and pipe, and do not allow foreign matter to contact the connector and pipe. Damage or foreign matter may damage the O-ring that seals the pipe and lead to leaks.
      • Perform this work by hand. Do not use any tools.
      • Do not forcibly bend, twist or turn the nylon tube.
        Fig 4: Identifying Fuel Tube Connector
        G04869379Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      • Protect the disconnected part by covering it with a plastic bag after disconnecting the fuel tube.
      • If the fuel tube connector and pipe are stuck, push and pull to release them.
  17. REMOVE HEATER WATER INLET HOSE 
    1. Remove the hose clamp.
      Fig 5: Locating Hose Clamp
      G04869380Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Remove the heater water inlet hose from the heater radiator unit and cylinder head.
      Fig 6: Locating Heater Water Inlet Hose
      G04869381Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  18. REMOVE HEATER WATER OUTLET HOSE 
    1. Remove the heater water outlet hose from the heater radiator unit and water by-pass pipe.
      Fig 7: Locating Heater Water Outlet Hose
      G04869382Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  19. REMOVE INTAKE MANIFOLD 
    1. Disconnect the union to check valve hose from the brake booster.
      Fig 8: Locating Brake Booster Union
      G04869383Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Disconnect the camshaft timing oil control valve connector.
    3. Remove the wire harness clamp.
    4. Remove the union to check valve hose from the vacuum hose clamp.
    5. Remove the 5 bolts, 2 nuts and intake manifold.
      Fig 9: Locating Wire Harness Clamp, Nuts And Bolts
      G04869384Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    6. Remove the gasket from the intake manifold.
      Fig 10: Locating Intake Manifold Gasket
      G04869385Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  20. REMOVE INTAKE MANIFOLD INSULATOR 
    1. Remove the intake manifold insulator from the cylinder block.
      Fig 11: Locating Intake Manifold Insulator
      G04869386Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  21. REMOVE KNOCK SENSOR 
    1. Disconnect the sensor connector.
    2. Remove the nut and sensor.
      Fig 12: Locating Knock Sensor Nut And Sensor
      G04869387Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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