3Uz-Fe Fuel. Fuel Pump Removal

Engine. Lexus Gs430, Gs300. Uzs190 Grs190

3Uz-Fe Fuel. Lexus Gs430, Gs300. Uzs190 Grs190

DISCHARGE FUEL SYSTEM PRESSURE
DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL
REMOVE REAR SEAT CUSHION ASSEMBLY
REMOVE ROOM NO. 3 PARTITION PAD
REMOVE REAR FLOOR NO. 2 SERVICE HOLE COVER
REMOVE FUEL SUCTION WITH PUMP AND GAUGE ASSEMBLY

Fuel Pump -- Removal

1. DISCHARGE FUEL SYSTEM PRESSURE

NOTICE:

Perform the following procedures to prevent fuel from spilling out before removing any fuel system parts.

Pressure will still remain in the fuel line even after performing the following procedures. When disconnecting the fuel line, cover it with a shop rag or a piece of cloth to prevent fuel from spraying.

Remove the F/PMP fuse.
1. Remove the engine room No. 2 relay block cover upper.
2. Remove the F/PMP fuse.
3. Start the engine.
4. After the engine has stopped, turn the engine switch off.
  HINT:
  DTC P0171/25 (fuel problem) and/or P0191/49 (fuel pressure sensor signal error) may be detected.
5. Crank the engine again. Check that the engine does not start.
6. Remove the fuel tank cap to discharge pressure from the fuel tank.
7. Reinstall the F/PMP fuse.

Disconnect the fuel pump connector.
1. Remove the rear seat cushion.
2. Remove the rear floor service hole cover.
3. Disconnect the fuel pump connector.
4. Start the engine.
5. After the engine has stopped, turn the engine switch off.
  HINT:
  DTC P0171/25 (fuel problem) and/or P0191/49 (fuel pressure sensor signal error) may be detected.
6. Crank the engine again. Check that the engine does not start.
7. Remove the fuel tank cap to discharge pressure from the fuel tank.
8. Reconnect the fuel pump connector.
9. Install the rear floor service hole cover.
10. Install the rear seat.

2. 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.

3. REMOVE REAR SEAT CUSHION ASSEMBLY

Lexus Gs430, Gs300. Uzs190 Grs190.3Uz-Fe Fuel.Fuel System.Fuel Pump Removal

Detach the seat cushion's 2 front hooks from the vehicle body.
NOTICE:
Follow the instructions below carefully as the cushion frame deforms easily.
1. Choose a hook to detach first. Place your hands near the hook as shown in the illustration. Then lift the seat cushion to detach the hook.
2. Repeat for the other hook.

Detach the seat cushion's 2 rear hooks from the seatback.

Remove the seat cushion.

4. REMOVE ROOM NO. 3 PARTITION PAD

Remove the clip and room partition pad.

5. REMOVE REAR FLOOR NO. 2 SERVICE HOLE COVER

Remove the service hole cover and disconnect the fuel pump connector.

6. REMOVE FUEL SUCTION WITH PUMP AND GAUGE ASSEMBLY

Disconnect the fuel tank main tube and pump tube.
1. Remove the 2 tube joint clips and fuel tubes.
  NOTICE:
  1. Remove any dirt and foreign matter on the fuel tube joint before performing this work.
  1. Do not allow any scratches or foreign matter on the parts when disconnecting them, as the fuel tube joint contains the O-rings that seal the plug.
  1. Perform this work by hand. Do not use any tools.
  1. Do not forcibly bend, twist or turn the nylon tube.
  1. Protect the disconnected part by covering it with a plastic bag and tape after disconnecting the fuel tubes.

Using a 6 mm socket, set SST to the fuel pump gauge retainer.
SST
09808-14020
NOTICE:
Do not use any other tools such as a screwdriver.
HINT:
Fit the tips of SST on the ribs of the retainer.

While holding the fuel suction tube by hand, remove the fuel pump gauge retainer.

Disconnect the fuel suction tube.

Remove the fuel suction tube from the fuel tank.
NOTICE:
1. Make sure that the sender gauge arm does not bend.
1. Do not damage the fuel suction tube.