Lexus IS250 IS220d GSE20 ALE20 4GR-FSE ENGINE CONTROL SYSTEM
THROTTLE BODY - REMOVAL
1. REMOVE COOL AIR INTAKE DUCT SEAL |

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.
Remove the radiator cap and reservoir tank cap.
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.
3. REMOVE ENGINE ROOM SIDE COVER RH |

Remove the 2 clips and side cover.
4. REMOVE V-BANK COVER SUB-ASSEMBLY |

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 |

Disconnect the ventilation hose from the cylinder head.
6. REMOVE AIR CLEANER CAP WITH AIR CLEANER HOSE |

Disconnect the MAF meter connector.
Disconnect the clamp from the air cleaner.

Disconnect the VSV hose.

Disconnect the 4 clamps.
Remove the hose clamp and air cleaner cap with air cleaner hose.
7. REMOVE THROTTLE BODY |
Disconnect the throttle motor connector.

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

Disconnect the 2 water by-pass hoses from the throttle body.
Remove the throttle body and gasket.