Throttle Body Removal

Engine. Lexus Is250, Is220D. Gse20 Ale20
4Gr-Fse Engine Control System. Lexus Is250, Is220D. Gse20 Ale20

  1. REMOVE COOL AIR INTAKE DUCT SEAL

  2. DRAIN ENGINE COOLANT

  3. REMOVE ENGINE ROOM SIDE COVER RH

  4. REMOVE V-BANK COVER SUB-ASSEMBLY

  5. DISCONNECT NO. 2 VENTILATION HOSE

  6. REMOVE AIR CLEANER CAP WITH AIR CLEANER HOSE

  7. REMOVE THROTTLE BODY

Throttle Body -- Removal



1. REMOVE COOL AIR INTAKE DUCT SEAL


    Lexus Is250, Is220D. Gse20 Ale20
  1. Remove the 11 clips and intake duct seal.



2. DRAIN ENGINE COOLANT
NOTICE:
Do not remove the radiator cap while the engine and radiator are still hot. Pressurized, hot engine coolant and steam may be released and cause serious burns.
  1. Remove the radiator cap and reservoir tank cap.



  1. Loosen the radiator drain cock plug and 2 cylinder block drain cock plugs. Then drain the coolant.

    HINT:
    Collect the coolant in a container and dispose of it according to the regulations in your area.


    Lexus Is250, Is220D. Gse20 Ale20.4Gr-Fse Engine Control System.Sfi System.Throttle Body  Removal



3. REMOVE ENGINE ROOM SIDE COVER RH


    Lexus Is250, Is220D. Gse20 Ale20.4Gr-Fse Engine Control System.Sfi System.Throttle Body  Removal
  1. Remove the 2 clips and side cover.



4. REMOVE V-BANK COVER SUB-ASSEMBLY


    Lexus Is250, Is220D. Gse20 Ale20
  1. Raise the V-bank cover to disengage the clip on the rear of the cover. Raise the cover again to disengage the 2 clips on the front of the cover and remove the cover.

    NOTICE:
    Attempting to disengage both front and rear clips at the same time may cause the cover to break.


5. DISCONNECT NO. 2 VENTILATION HOSE


    Lexus Is250, Is220D. Gse20 Ale20
  1. Disconnect the ventilation hose from the cylinder head.



6. REMOVE AIR CLEANER CAP WITH AIR CLEANER HOSE


    Lexus Is250, Is220D. Gse20 Ale20
  1. Disconnect the MAF meter connector.

  1. Disconnect the clamp from the air cleaner.



    Lexus Is250, Is220D. Gse20 Ale20
  1. Disconnect the VSV hose.



    Lexus Is250, Is220D. Gse20 Ale20
  1. Disconnect the 4 clamps.

  1. Remove the hose clamp and air cleaner cap with air cleaner hose.



7. REMOVE THROTTLE BODY
  1. Disconnect the throttle motor connector.



    Lexus Is250, Is220D. Gse20 Ale20
  1. Remove the 4 bolts and disconnect the throttle body from the intake air surge tank.



    Lexus Is250, Is220D. Gse20 Ale20
  1. Disconnect the 2 water by-pass hoses from the throttle body.

  1. Remove the throttle body and gasket.