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Throttle Body ASSY (3MZ-FE): Replacement

  1. DRAIN ENGINE COOLANT (See  COOLANT (3MZ-FE)  ) 
  2. REMOVE FRONT SUSPENSION BRACE SUB-ASSY UPPER CENTER 
    1. Remove the 2 nuts and upper brace.
  3. REMOVE V-BANK COVER SUB-ASSY 
    1. Using a socket hexagon wrench 5, remove the 3 nuts.
    2. Remove the V-bank cover.
    Fig 1: Removing V-Bank Cover
    G02596765Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  4. REMOVE AIR CLEANER INLET ASSY (See  REPLACEMENT  ) 
  5. REMOVE AIR CLEANER ASSY (See  REPLACEMENT  ) 
  6. REMOVE INTAKE AIR RESONATOR 
    1. Remove the ventilation hose No. 2.
    2. Remove the fuel vapor feed hose from the 2 hose clamps.
    3. Loosen the air cleaner hose clamp bolt, and then remove the intake air resonator.
    Fig 2: Removing Intake Air Resonator
    G02596766Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  7. REMOVE THROTTLE BODY ASSY 
    1. Disconnect the throttle control motor & throttle position sensor connector.
    2. Disconnect the water by-pass hose No. 2.
    3. Disconnect the water by-pass hose No. 3.
      Fig 3: Disconnecting Throttle Control Motor & Throttle Position Sensor Connector
      G02596767Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    4. Remove the 2 bolts, 2 nuts and throttle body.
    5. Remove the gasket.
      Fig 4: Removing Throttle Body Assy
      G02596768Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  8. INSTALL THROTTLE BODY ASSY 
    1. Install a new gasket to the intake air connector.
    2. Install the throttle body with the 2 bolts and 2 nuts.

      Torque: 11 N m (112 kgf.cm, 8 ft.lbf) 

    3. Connect the water by-pass hose No. 3.
    4. Connect the water by-pass hose No. 2.
    5. Connect the throttle control motor & throttle position sensor connector.
  9. INSTALL INTAKE AIR RESONATOR 
  10. INSTALL AIR CLEANER ASSY (See  REPLACEMENT  ) 
  11. INSTALL AIR CLEANER INLET ASSY (See  REPLACEMENT  ) 
  12. CHECK CONNECTION OF VACUUM HOSE (See  REPLACEMENT  ) 
  13. ADD ENGINE COOLANT (See  COOLANT (3MZ-FE)  ) 
  14. CHECK FOR ENGINE COOLANT LEAKS (See  COOLING SYSTEM (2AZ-FE)  ) 
  15. INSTALL V-BANK COVER SUB-ASSY 
    1. Fit the 2 retainers and install the V-bank cover.
    2. Using a socket hexagon wrench 5, tighten the 3 nuts.

      Torque: 7.9 N.m (81 kgf.cm, 70 in.lbf) 

  16. INSTALL FRONT SUSPENSION BRACE SUB-ASSY UPPER CENTER 
    1. Install the upper brace with the 2 nuts.

      Torque: 80 N.m (815 kgf.cm, 59 ft.lbf) 

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