LEXUS LS430 2003 Factory Repair Manual

b. Remove the 2 bolts.
c. Remove the fuel delivery pipe No. 2 by pulling it straight upward holding both the ends.
15.REMOVE FUEL INJECTOR ASSY
a. Remove the injector from the intake manifold.
b. Remove the O-ring, grommet and vibration insulator from the injector.
Fig. 32: Installing O
-Ring, Grommet And Vibration Insulator From Injector
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
16.INSTALL FUEL INJECTOR ASSY
a. Install a new grommet and vibration insulator to the injector.
b. Check the injector's grooves (where O-rings are installed) for foreign matter or damage. Apply

gasoline to 2 new O-rings and install them to the injector's grooves.
c. To install the fuel injector into the fuel delivery pipe, push the fuel injector while twisting it back
and forth. Install the 4 injectors.
d. Check that the injector can rotate smoothly.
17.INSTALL FUEL DELIVERY PIPE SUB-ASSY NO.2
a. Install the injector (with delivery pipe) to the intake manifold.
b. Under the above condition, turn the injector both ways by approximately 45 degrees.
c. Inserting a spacer in between, install the delivery pipe (with injector) with the 2 nuts.
Torque: 21 N.m (214 kgf.cm, 15 ft.lbf)
18.INSTALL FUEL DELIVERY PIPE SUB-ASSY
a. Install the injector (with delivery pipe) to the intake manifold.
b. Under the above condition, turn the injector both ways by approximately 45 degrees.
c. Inserting a spacer in between, install the delivery pipe (with injector) with the 2 nuts.
Torque: 21 N.m (214 kgf.cm, 15 ft.lbf)
19.INSTALL FUEL PRESSURE PULSATION DAMPER ASSY
a. Inserting 2 new gaskets in between, install the fuel main hose to the fuel pressure pulsation damper.
Torque: 39 N.m (400 kgf.cm, 29 ft.lbf)

Fig. 33: Installing Gaskets
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
20.INSTALL ENGINE WIRE
a. Install the 2 wire clamps to the wire clamp bracket on the RH delivery pipe.
21.INSTALL VACUUM SWITCHING VALVE ASSY
Torque: 18 N.m (184 kgf.cm, 13 ft.lbf)
22.INSTALL V-VANK COVER BRACKET NO.4
Torque: 7.5 N.m (76 kgf.cm, 66 in..lbf)
23.INSTALL V-BANK COVER BRACKET NO.3
Torque: 7.5 N.m (76 kgf.cm, 66 in..lbf)
24.INSTALL V-BANK COVER BRACKET NO.2
Torque: 7.5 N.m (76 kgf.cm, 66 in..lbf)
25.INSTALL V-BANK COVER BRACKET NO.1
Torque: 7.5 N.m (76 kgf.cm, 66 in..lbf)
26.INSTALL INTAKE AIR CONNECTOR PIPE

a. Install the intake air connector pipe with the bolt and hose clamp.
Torque:
4.0 N.m (40 kgf.cm, 35 in..lbf) for hose clamp
5.0 N.m (50 kgf.cm, 44 in..lbf) for bolt
b. Connect the air hose and ventilation hose No. 1 together.
27.INSTALL AIR CLEANER INLET NO.1
28.INSPECT FOR FUEL LEAKS (See ON
-VEHICLE INSPECTION )
29.INSTALL V-BANK COVER
Torque: 5.0 N.m (51 kgf.cm, 44 in..lbf)
30.CONNECT BATTERY NEGATIVE TERMINAL
Fig. 34: Identifying Wire Clamp Bracket

Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

COMPONENTS
Fig. 35: Exploded View Of Fuel Pump Assy Components (1 Of 2)

Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

Fig. 36: Exploded View Of Fuel Pump Assy Components (1 Of 2)
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

REPLACEMENT
1.WORK FOR PREVENTING GASOLINE FROM SPILLING OUT (See PRECAUTION
)
2.DISCONNECT BATTERY NEGATIVE TERMINAL
3.DRAIN FUEL (See PRECAUTION
)
4.REMOVE SEPARATE TYPE REAR SEAT CUSHION ASSY LH (SEPARATED TYPE REAR
SEAT) (See OVERHAUL
)
5.REMOVE BENCH TYPE REAR SEAT CUSHION ASSY (FIXED TYPE REAR SEAT) (See
OVERHAUL
)
6.REMOVE REAR FLOOR SERVICE HOLE COVER NO.2
a. Remove the 3 cap nuts and service hole cover.
7.REMOVE FUEL TANK MAIN TUBE SUB-ASSY

a. Remove the tube joint clip.
b. Pull out the fuel main tube.
c. Plu
g the port of the fuel suction plate with a clean rubber cap.

Fig. 38: Pulling Out Fuel Main Tube
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
8.REMOVE FUEL TANK VENT TUBE SET PLATE
a. Remove the 8 bolts and set plate.
9.REMOVE FUEL PUMP AND SENDER GAUGE ASSEMBLY
a. Lift up the fuel pump and sender gauge. Disconnect the fuel sub-suction hose from the fuel return
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Fig. 39: Disconnecting Fuel Sub-Suction Hose
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
10.REMOVE FUEL SUCTION SUPPORT NO.2
a. Using 2 screwdrivers, disconnect the 3 snap claws from the claw holes and remove the fuel suction
support.
11.REMOVE FUEL PUMP CUSHION RUBBER