Lexus RX300 (MCU15). Service manual — part 410

FI0UR–01

B08891

B08889

B08890

B01874

Fuel
Sub–Suction
Hose

–

ELECTRONIC FUEL INJECTION

FUEL PUMP

FI–11

LEXUS RX300 (RM785E)

REMOVAL

CAUTION:
Do not smoke or work near an open frame when working
the fuel pump.
1.

REMOVE LH REAR SEAT

2.

REMOVE REAR SEAT SIDE GARNISH

3.

TURN OVER FROOR CARPET

4.

REMOVE FLOOR SERVICE HOLE COVER

Remove the 3 cap nuts and service hole cover.
5.

DISCONNECT FUEL PUMP & SENDER GAUGE CON-
NECTOR

6.

DISCONNECT FUEL TANK MAIN TUBE (FUEL TUBE
CONNECTOR) FROM FUEL SECTION PLATE

CAUTION:

S

Perform disconnecting operation of the fuel tube con-
nector (quick type) after observing precaution (See
page FI–1).

S

As there is retained pressure in the fuel line, prevent
it from splashing inside the vehicle compartment.

(a)

Remove the tube joint clip.

(b)

Pull out the fuel main tube.

(c)

Plug the port of the fuel suction plate with a clean rubber
cap.

7.

REMOVE FUEL PUMP AND SENDER GAUGE AS-
SEMBLY FROM FUEL TANK

(a)

Remove the 8 bolts and fuel tank vent tube set plate.

(b)

Lift up the fuel pump and sender gauge assembly, and
disconnect the fuel sub–suction hose from the fuel return
jet tube and remove the fuel pump, sender gauge assem-
bly and gasket.

8.

REMOVE NO.2 FUEL SUCTION SUPPORT

9.

REMOVE FUEL PRESSURE REGULATOR AND FUEL
RETURN JET TUBE ASSEMBLY

B08893

B01889

Pry

Pry

B08894

Pull

B01891

Pull

FI–12

–

ELECTRONIC FUEL INJECTION

FUEL PUMP

LEXUS RX300 (RM785E)

10.

REMOVE FUEL SUCTION FILTER

(a)

Remove the clip.

(b)

Pull out the suction filter.

11.

REMOVE NO.1 FUEL SUCTION SUPPORT

(a)

Using 2 screwdrivers, disconnect the 4 snap claws from
the claw holes and remove the fuel suction support.

NOTICE:
Be careful not to damage the suction support and suction
plate.
(b)

Remove the No.2 fuel filter cushion.

12.

REMOVE FUEL FILTER AND FUEL PUMP ASSEMBLY

(a)

Disconnect the fuel pump connector from the fuel pump.

(b)

Pull out the fuel filter and fuel pump assembly.

(c)

Remove the No.1 fuel filter cushion.

(d)

Remove the O–ring from the fuel port of the fuel suctiion
plate.

13.

REMOVE FUEL PUMP FROM FUEL FILTER

Pull out the fuel pump.

B02037

Push

FI0US–01

B01892

Fuel Port Hole

No.1 Fuel Filter
Cushion

Fuel Port

New O–Ring

B01893

B02038

Snap Claw

Push

B08893

New Clip

–

ELECTRONIC FUEL INJECTION

FUEL PUMP

FI–13

LEXUS RX300 (RM785E)

INSTALLATION

1.

INSTALL FUEL PUMP TO FUEL FILTER

Push in the fuel pump.

2.

INSTALL FUEL FILTER AND FUEL PUMP ASSEMBLY

(a)

Install the No.1 fuel filter cushion to the fuel suction plate.

(b)

Apply a light coat of gasoline to a new O–ring, and install
it to the fuel port of the fuel suction plate.

(c)

Align the fuel port of the fuel suction plate with the fuel port
hole of the fuel filter.

(d)

Push in the fuel filter.

(e)

Connect the fuel pump connector.

3.

INSTALL NO.1 FUEL SUCTION SUPPORT

(a)

Install the No.2 fuel filter cushion the fuel filter.

(b)

Push the fuel suction support, and attach the 4 snap
claws to the claw holes.

4.

INSTALL FUEL SUCTION FILTER

Install the suction filter with a new clip.
5.

INSTALL FUEL PRESSURE REGULATOR AND FUEL
RETURN JET TUBE ASSEMBLY

6.

INSTALL NO.2 FUEL SUCTION SUPPORT

B08892

Fuel
Sub–Suction
Hose

B08890

B08889

B08891

FI–14

–

ELECTRONIC FUEL INJECTION

FUEL PUMP

LEXUS RX300 (RM785E)

7.

INSTALL FUEL PUMP AND SENDER GAUGE AS-
SEMBLY TO FUEL TANK

(a)

Install a new gasket to the fuel suction plate.

(b)

Connect the fuel sub–suction hose to the fuel return jet
tube.

(c)

Attach the fuel pump and sender gauge assembly to the
fuel tank.

(d)

Install the fuel tank vent tube set plate with the 8 bolts.
Torque: 3.5 N·m (36 kgf·cm, 31 in.·lbf)

8.

CONNECT FUEL TANK MAIN TUBE (FUEL TUBE CON-
NECTOR) TO FUEL SUCTION PLATE

(a)

Attach the fuel tube connector to the port of the fuel suc-
tion plate.

(b)

Install the tube joint clip.

9.

CONNECT FUEL PUMP & SENDER GAUGE CONNEC-
TOR

10.

CHECK FOR FUEL LEAKS (See page FI–1)

11.

INSTALL FLOOR SERVICE HOLE COVER

12.

INSTALL FLOOR CARPET

13.

INSTALL REAR SEAT SIDE GARNISH

14.

INSTALL LH REAR SEAT CUSHION