Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual: Removal

Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual / Engine & Hybrid System / 2gr-fks (engine Control) / Throttle Body / Removal

REMOVAL

CAUTION / NOTICE / HINT

The necessary procedures (adjustment, calibration, initialization or registration) that must be performed after parts are removed and installed, or replaced during throttle body with motor assembly removal/installation are shown below.

Necessary Procedures After Parts Removed/Installed/Replaced

Replaced Part or Performed Procedure

Necessary Procedure

Effect/Inoperative Function when Necessary Procedure not Performed

Link
  • Replacement of throttle body with motor assembly
  • Cleaning the deposits from the throttle body with motor assembly

Inspection After Repair
  • Poor idle, etc.
  • Engine start function, etc.

CAUTION:

Do not remove the radiator cap sub-assembly or radiator drain cock plug while the engine and radiator assembly are still hot. Pressurized, hot engine coolant and steam may be released and cause serious burns.

PROCEDURE

1. DRAIN ENGINE COOLANT

Click here

2. REMOVE AIR CLEANER CAP WITH AIR CLEANER HOSE

(a) Disconnect the mass air flow meter sub-assembly connector.

(b) Disengage the wire harness clamp.

(c) Disengage the No. 1 fuel vapor feed hose from the air cleaner hose assembly.

*1

No. 1 Fuel Vapor Feed Hose

*2

No. 2 Ventilation Hose

(d) Slide the clip and disconnect the No. 2 ventilation hose from the air cleaner hose assembly.

(e) Disengage the 2 air cleaner cap clamps.

*a

Air Cleaner Cap Clamp

*b

Guide

(f) Open the air cleaner cap sub-assembly and remove the air cleaner filter element sub-assembly from the air cleaner case sub-assembly.

(g) Disengage the 2 guides to separate the air cleaner cap sub-assembly from the air cleaner case sub-assembly.

(h) Loosen the hose clamp and remove the air cleaner cap with air cleaner hose from the throttle body with motor assembly.

3. REMOVE THROTTLE BODY WITH MOTOR ASSEMBLY

(a) Slide the 2 clips and disconnect the No. 2 water by-pass hose and No. 3 water by-pass hose from the throttle body with motor assembly.

*1

No. 2 Water By-pass Hose

*2

No. 3 Water By-pass Hose

(b) Disconnect the throttle body with motor assembly connector.

(c) Remove the 4 bolts and throttle body with motor assembly from the intake air surge tank assembly.

NOTICE:

If the throttle body with motor assembly has been struck or dropped, replace it.

4. REMOVE THROTTLE BODY GASKET

(a) Remove the throttle body gasket from the intake air surge tank assembly.
    On-vehicle Inspection
    ON-VEHICLE INSPECTION PROCEDURE 1. INSPECT THROTTLE BODY WITH MOTOR ASSEMBLY (a) Before cleaning, or after cleaning the throttle body with motor assembly and installing it to the vehicle, turn the eng ...

    Inspection
    INSPECTION PROCEDURE 1. INSPECT THROTTLE BODY WITH MOTOR ASSEMBLY (a) Measure the resistance according to the value(s) in the table below. Standard Resistance: Tester Connection Condition S ...

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    Lexus RX (RX 350L, RX450h) 2016-{YEAR} Owners Manual

    Lexus RX (RX 350L, RX450h) 2016-{YEAR} Repair Manual

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