2004 Lexus RX 330 AWDFACTORY OEM SERVICE PROCEDURE

Intake Air Control Valve ASSY No.2 (3MZ-FE): Replacement

  1. DRAIN ENGINE COOLANT (See  ENGINE COOLANT  ) 
  2. REMOVE FR WIPER ARM LH (See  WINDSHIELD WIPER MOTOR ASSY  ) 
  3. REMOVE FR WIPER ARM RH (See  WINDSHIELD WIPER MOTOR ASSY  ) 
  4. REMOVE FRONT FENDER TO COWL SIDE SEAL LH 
  5. REMOVE FRONT FENDER TO COWL SIDE SEAL RH 
  6. REMOVE COWL TOP VENTILATOR LOUVER SUB-ASSY (See  WINDSHIELD WIPER MOTOR ASSY  ) 
  7. REMOVE WINDSHIELD WIPER LINK ASSY (See  WINDSHIELD WIPER MOTOR ASSY  ) 
  8. REMOVE COWL TOP PANEL SUB-ASSY OUTER (See  REPLACEMENT  ) 
  9. REMOVE V-BANK COVER SUB-ASSY (See  REPLACEMENT  ) 
  10. REMOVE AIR CLEANER CAP SUB-ASSY (See  REPLACEMENT  ) 
  11. REMOVE EMISSION CONTROL VALVE SET (See  REPLACEMENT  ) 
  12. REMOVE INTAKE AIR SURGE TANK (See  REPLACEMENT  ) 
  13. REMOVE INTAKE AIR CONTROL VALVE ASSY NO.2 
    1. Remove the 3 bolts and nut.
    2. Rotate the lever to the closed position as shown in Fig 1 and pull out the intake air control valve No.2.
    3. Remove the gasket from the intake air surge tank.
      Fig 1: Identifying Intake Air Control Valve Assy No.2 (3MZ-FE)
      G00906837Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  14. INSTALL INTAKE AIR CONTROL VALVE ASSY NO.2 
    1. Install a new gasket to the intake air surge tank.
    2. Install the intake air control valve No.2 with the 3 bolts and nut.

      Torque: 10 N.m (102 kgf.cm, 7 ft.lbf) 

  15. INSTALL INTAKE AIR SURGE TANK (See  REPLACEMENT  ) 
  16. INSTALL EMISSION CONTROL VALVE SET (See  REPLACEMENT  ) 
  17. INSTALL AIR CLEANER CAP SUB-ASSY (See  REPLACEMENT  ) 
  18. CHECK CONNECTION OF VACUUM HOSE (See  REPLACEMENT  ) 
  19. ADD ENGINE COOLANT (See  ENGINE COOLANT  ) 
  20. CHECK FOR ENGINE COOLANT LEAKS (See  COOLING SYSTEM  ) 
  21. INSTALL V-BANK COVER SUB-ASSY (See  REPLACEMENT  ) 
  22. INSTALL COWL TOP PANEL SUB-ASSY OUTER (See  REPLACEMENT  ) 
  23. INSTALL WINDSHIELD WIPER LINK ASSY (See  REPLACEMENT  ) 
  24. INSTALL COWL TOP VENTILATOR LOUVER SUB-ASSY 
  25. INSTALL FRONT FENDER TO COWL SIDE SEAL RH 
  26. INSTALL FRONT FENDER TO COWL SIDE SEAL LH 
  27. INSTALL FR WIPER ARM RH (See  REPLACEMENT  ) 
  28. INSTALL FR WIPER ARM LH (See  REPLACEMENT  ) 
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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.