Subaru Impreza 3 / Impreza WRX / Impreza WRX STI. Manual - part 137

FU(w/o STI)-75

Fuel Filler Pipe

FUEL INJECTION (FUEL SYSTEMS)

25.Fuel Filler Pipe

A: REMOVAL

WARNING:

Place  “NO  OPEN  FLAMES”  signs  near  the

working area.
CAUTION:

Be careful not to spill fuel.

1) Release the fuel pressure. <Ref. to FU(w/o STI)-

65, RELEASING OF FUEL PRESSURE, PROCE-

DURE, Fuel.>

2) Drain fuel. <Ref. to FU(w/o STI)-65, DRAINING

FUEL  (WITH  SUBARU  SELECT  MONITOR),

PROCEDURE, Fuel.>

3) Disconnect the ground cable from battery.

4) Open the fuel filler lid, and remove the filler cap.

5) Remove the screws which secure the fuel filler

ring, and then remove the fuel filler ring.

6) Remove the rear wheel RH.

7) Lift up the vehicle.

8) Remove the rear mud guard RH. <Ref. to EI-30,

REAR MUD GUARD, REMOVAL, Mud Guard.>

9) Remove the rear sub frame. <Ref. to RS-17, RE-

MOVAL, Rear Sub Frame.>

10) Remove the bolts and nuts which secure fuel

filler pipe assembly onto the vehicle body.

11) Disconnect the fuel filler hose (A) and evapora-

tion hose (B) from the fuel filler pipe assembly.

12) Remove the fuel filler pipe assembly from the

underside of the vehicle.

IN-00203

FU-03835

FU-03426

(B)

FU-05755

(A)

(B)

FU(w/o STI)-76

Fuel Filler Pipe

FUEL INJECTION (FUEL SYSTEMS)

B: INSTALLATION

1) Open the fuel filler lid.

2) Attach the fuel filler pipe gasket to the fuel filler

pipe assembly, and insert the fuel filler pipe assem-

bly from inside of the rear fender.

3) Install the fuel filler ring to the fuel filler pipe as-

sembly.
NOTE:

If the edges of rubber gasket are folded toward in-

side, straighten it with a flat tip screwdriver.

Tightening torque:

4.4 N·m (0.4 kgf-m, 3.2 ft-lb)

4) Securely insert the fuel filler hose (A) and evap-

oration  hose  (B)  until  the  hose  end  contacts  the

spool, then attach the clamp or clip as shown in the

figure.
Tightening torque:

2.5 N·m (0.3 kgf-m, 1.8 ft-lb)

(A) Fuel filler pipe gasket
(B) Fuel saucer

(C) Fuel filler ring
(D) Rubber gasket

FU-04419

(A)

(B)

(C)

(D)

FU-03835

(1) Hose
(2) Clamp or clip
(3) Spool
(4) Pipe

(B)

FU-05755

(A)

(B)

FU-05646

(1)

(2)

(4)

L

L/2

(3)

FU(w/o STI)-77

Fuel Filler Pipe

FUEL INJECTION (FUEL SYSTEMS)

5) Install  the  fuel  filler  pipe  assembly  to  vehicle

body.
Tightening torque:

7.5 N·m (0.8 kgf-m, 5.5 ft-lb)

6) Install  the  rear  sub  frame.  <Ref.  to  RS-18,  IN-

STALLATION, Rear Sub Frame.>

7) Install the rear mud guard RH. <Ref. to EI-30, IN-

STALLATION, Mud Guard.>

8) Lower the vehicle.

9) Install the rear wheel RH.
Tightening torque:

100 N·m (10.2 kgf-m, 73.8 ft-lb)

10) Connect the battery ground terminal.

11) Inspect the wheel alignment and adjust if nec-

essary.

C: DISASSEMBLY

1) Remove the shut valve from the fuel filler pipe.

<Ref. to EC(w/o STI)-19, REMOVAL, Shut Valve.>

2) Remove the evaporation pipe from the fuel filler

pipe.

D: ASSEMBLY

Assemble in the reverse order of disassembly.
Tightening torque:

7.5 N·m (0.8 kgf-m, 5.5 ft-lb)

E: INSPECTION

1) Check  that  the  fuel  filler  pipe  and  evaporation

pipe have no deformation, cracks or other damag-

es.

2) Check that the hose has no cracks, damage or

loose part.

FU-03426

IN-00203

FU-03428

FU(w/o STI)-78

Fuel Pump

FUEL INJECTION (FUEL SYSTEMS)

26.Fuel Pump

A: REMOVAL

WARNING:

Place  “NO  OPEN  FLAMES”  signs  near  the

working area.
CAUTION:

• Be careful not to spill fuel.

• Catch the fuel from the tubes using a contain-

er or cloth.

• If the fuel gauge indicates that two thirds or

more of the fuel is remaining, be sure to drain

fuel  before  starting  work  to  avoid  the  fuel  to

spill.
NOTE:

Fuel pump assembly consists of fuel pump, fuel fil-

ter and fuel level sensor.

1) Release the fuel pressure. <Ref. to FU(w/o STI)-

65, RELEASING OF FUEL PRESSURE, PROCE-

DURE, Fuel.>

2) Drain fuel. <Ref. to FU(w/o STI)-65, DRAINING

FUEL  (WITH  SUBARU  SELECT  MONITOR),

PROCEDURE, Fuel.>

3) Disconnect the ground cable from battery.

4) Remove the rear seat cushion. <Ref. to SE-13,

REMOVAL, Rear Seat.>

5) Remove the service hole cover.

(1) Remove the screws (A).

(2) Push  the  grommet  (B)  down  and  remove

service hole cover.

6) Disconnect the connector from fuel pump.

7) Disconnect the quick connectors of fuel delivery

tube (A), fuel return tube (B), and jet pump tube (C).

<Ref.  to  FU(w/o  STI)-89,  REMOVAL,  Fuel  Deliv-

ery, Return and Evaporation Lines.>

8) Remove the nuts which hold the fuel pump up-

per plate to the fuel tank.

9) Remove the fuel pump assembly from the fuel

tank.

IN-00203

FU-06557

(A)

(B)

(A)

FU-03363

FU-04246

(B)

(C)

(A)

FU-04534