Lexus IS250 · Service Manual ENGINE

REMOVAL

Removal / installation


1. REMOVE COOL AIR INTAKE DUCT SEAL

  1. A127530
    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.


    A120242E01


3. REMOVE ENGINE ROOM SIDE COVER RH

  1. A123703E01
    Remove the 2 clips and side cover.


4. REMOVE V-BANK COVER SUB-ASSEMBLY

  1. A127528
    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

  1. A103629
    Disconnect the ventilation hose from the cylinder head.


6. REMOVE AIR CLEANER CAP WITH AIR CLEANER HOSE

  1. A124986
    Disconnect the MAF meter connector.

  1. Disconnect the clamp from the air cleaner.

  1. A103631
    Disconnect the VSV hose.

  1. A126225
    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.

  1. A103952
    Remove the 4 bolts and disconnect the throttle body from the intake air surge tank.

  1. A103634
    Disconnect the 2 water by-pass hoses from the throttle body.

  1. Remove the throttle body and gasket.

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