Lexus IS250 · Service Manual ENGINE

REMOVAL

Removal / installation


1. DISCONNECT BATTERY NEGATIVE TERMINAL

2. 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.


3. REMOVE COOL AIR INTAKE DUCT SEAL

  1. A127530
    Remove the 11 clips and intake duct seal.


4. REMOVE ENGINE ROOM SIDE COVER RH

  1. A123703E01
    Remove the 2 clips and side cover.


5. REMOVE ENGINE ROOM SIDE COVER LH

  1. A123702E01
    Remove the 5 clips and side cover.


6. DISCONNECT NO. 2 VENTILATION HOSE

  1. A103947
    Disconnect the ventilation hose from the cylinder head.


7. 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.


8. REMOVE INTAKE AIR SURGE TANK ASSEMBLY

  1. A125211
    Disconnect the vacuum hose from the intake air surge tank.

  1. Remove the bolt and disconnect the No. 1 vacuum switching valve assembly from the intake air surge tank.

  1. A123886
    Disconnect the wire harness and hose from the surge tank.

  1. A126653
    Disconnect the ventilation hose from the intake air surge tank.

  1. A122441
    Remove the bolt and water hose joint from the intake air surge tank.

  1. A126654
    Remove the bolt and disconnect the surge tank stay.

  1. A103645
    Using a 5 mm hexagon socket wrench, remove the 7 bolts, 2 nuts and gasket.


9. REMOVE IGNITION COIL ASSEMBLY

  1. Disconnect the 6 ignition coil connectors.

  1. A121399
    Remove the 6 bolts and the 6 ignition coil assemblies.

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