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Home >> Lexus >> 2010 >> RX 350 FWD >> Repair and Diagnosis >> Engine Performance >> Remove, Overhaul & Install >> Engine Control (Service Information) >> Throttle Body >> REMOVAL (To 8/2009) >> Removal

REMOVAL (To 8/2009): Removal

  1. PRECAUTION (w/ Air Suspension) 
    NOTE:

    Be sure to read Precaution thoroughly before servicing. Refer to PRECAUTION .

  2. PRECAUTION (w/ Navigation System for HDD) 
    NOTE:

    After the engine switch is turned off, the display and navigation module display (HDD navigation system) records various types of memory and settings. As a result, after turning the engine switch off, make sure to wait at least 60 seconds before disconnecting the cable from the negative (-) battery terminal.

  3. REMOVE WINDSHIELD WIPER MOTOR AND LINK ASSEMBLY 
    1. Remove the windshield wiper motor and link assembly. Refer to REMOVAL .
  4. REMOVE FRONT SHOCK ABSORBER CAP (w/ Air Suspension)  . Refer to REMOVAL - Step 3
  5. REMOVE OUTER COWL TOP PANEL SUB-ASSEMBLY  . Refer to REMOVAL - Step 11
  6. REMOVE V-BANK COVER SUB-ASSEMBLY  . Refer to REMOVAL - Step 34
  7. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL 
    WARNING:

    Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system. Refer to PRECAUTION .

    NOTE:

    When disconnecting the cable, some systems need to be initialized after the cable is reconnected. Refer to INITIALIZATION .

  8. REMOVE NO. 1 ENGINE UNDER COVER 
  9. DRAIN ENGINE COOLANT  . Refer to REPLACEMENT - Step 7
  10. REMOVE NO. 2 AIR CLEANER INLET  . Refer to REMOVAL - Step 35
  11. REMOVE NO. 1 AIR CLEANER INLET  . Refer to REMOVAL - Step 36
  12. REMOVE BATTERY  . Refer to REMOVAL - Step 37
  13. REMOVE AIR CLEANER ASSEMBLY 
    1. Separate the mass air flow meter connector and wire harness clamp.
      Fig 1: Identifying Mass Air Flow Meter Connector And Wire Harness Clamp
      GTY265296Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Separate the vacuum hose from the intake air surge tank assembly.
      Fig 2: Identifying Vacuum Hose
      GTY265490Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Separate the vacuum hose from the hose clamp.
    4. Separate the vacuum switching valve connector and 2 wire harness clamps.
      Fig 3: Identifying Vacuum Switching Valve Connector And 2 Wire Harness Clamps
      GTY265492Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    5. Separate the 2 vacuum hoses.
      Fig 4: Identifying 2 Vacuum Hoses
      GTY265267Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    6. Separate the ventilation hose and the fuel vapor feed hose.
      Fig 5: Identifying Ventilation Hose And The Fuel Vapor Feed Hose
      GTY260744Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      TEXT IN ILLUSTRATION

      *1 Ventilation Hose
      *2 Fuel Vapor Feed Hose
    7. Loosen the hose clamp and separate the air cleaner hose from the throttle body.
    8. Remove the 2 bolts and remove the air cleaner assembly.
      Fig 6: Locating 2 Bolts And Remove The Air Cleaner Assembly
      GTY271742Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  14. REMOVE THROTTLE BODY 
    1. Disconnect the 2 water by-pass hoses from the throttle body.
      Fig 7: Locating Water By-Pass Hoses
      GTY212599Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Disconnect the throttle body connector and wire harness clamp.
      Fig 8: Locating Throttle Body Connector And Wire Harness Clamp
      GTY279405Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Remove the 4 bolts, throttle body and wire harness clamp stay.
    4. Remove the gasket from the intake air surge tank assembly.