Heater Glow Plug (For 3Gr-Fse) Removal

Heater & Air Conditioning System. Lexus Gs430, Gs300. Uzs190 Grs190
Air Conditioning. Lexus Gs430, Gs300. Uzs190 Grs190

  1. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL

  2. REMOVE V-BANK COVER SUB-ASSEMBLY

  3. REMOVE UNION TO CHECK VALVE HOSE (for RHD)

  4. REMOVE ENGINE REAR COVER

  5. DISCONNECT HEATER BLOWER WIRE

  6. REMOVE WATER BY-PASS GLOW PLUG

Heater Glow Plug (For 3Gr-Fse) -- Removal



1. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL
CAUTION:
Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to prevent airbag and seat belt pretensioner activation.


2. REMOVE V-BANK COVER SUB-ASSEMBLY


Lexus Gs430, Gs300. Uzs190 Grs190

  1. Remove the 2 nuts and V-bank cover.



3. REMOVE UNION TO CHECK VALVE HOSE (for RHD)


Lexus Gs430, Gs300. Uzs190 Grs190

  1. Disconnect the hose from the surge tank.



4. REMOVE ENGINE REAR COVER


Lexus Gs430, Gs300. Uzs190 Grs190.Air Conditioning.Air Conditioning System.Heater Glow Plug (For 3Gr-Fse) Removal

  1. Remove the 3 clips and engine rear cover.



5. DISCONNECT HEATER BLOWER WIRE


    Lexus Gs430, Gs300. Uzs190 Grs190

  1. Remove the 2 grommets.



    Lexus Gs430, Gs300. Uzs190 Grs190

  1. Remove the 2 nuts while using your hands to make sure the terminal directions (angles) of the 2 wires do not change.

  1. Remove the 2 plate washers and disconnect the 2 wires.

    HINT:
    Before removing the 2 plate washers and disconnecting the 2 wires, check the terminal directions (angles) of the 2 wires so that they can be reinstalled in the same direction.

  1. Remove the 2 wave washers.



6. REMOVE WATER BY-PASS GLOW PLUG


    Lexus Gs430, Gs300. Uzs190 Grs190

  1. Remove the glow plug.

    HINT:
    Collect the engine coolant in a container.