2004 SUBARU FORESTER Service Repair Manual

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Page 1425 of 2870

SUBARU FORESTER 2004 Service Repair Manual FU(H4DOTC)-70
FUEL INJECTION (FUEL SYSTEM)
Fuel Delivery, Return and Evaporation Lines
33.Fuel Delivery, Return and Evaporation Lines
A: REMOVAL
1) Set the vehicle on a lift.
2) Release the fuel press

Page 1426 of 2870

SUBARU FORESTER 2004 Service Repair Manual FU(H4DOTC)-71
FUEL INJECTION (FUEL SYSTEM)
Fuel Delivery, Return and Evaporation Lines
9) Separate the quick connector on fuel delivery
line.
(1) Clean the pipe and connector, if they are
covered with

Page 1427 of 2870

SUBARU FORESTER 2004 Service Repair Manual FU(H4DOTC)-72
FUEL INJECTION (FUEL SYSTEM)
Fuel Delivery, Return and Evaporation Lines
2) Connect the fuel delivery hose to pipe with an
overlapof 20 to 25 mm (0.79 to 0.98 in).
Type A: When the fitti

Page 1428 of 2870

SUBARU FORESTER 2004 Service Repair Manual FU(H4DOTC)-73
FUEL INJECTION (FUEL SYSTEM)
Fuel System Trouble in General
34.Fuel System Trouble in General
A: INSPECTION
NOTE:
When the vehicle is left unattended for an ex-
tended period of time,

FU(H4DOTC)-73
FUEL INJECTION (FUEL SYSTEM)
Fuel System Trouble in General
34.Fuel System Trouble in General
A: INSPECTION
NOTE:
When the vehicle is left unattended for an ex-
tended period of time, water may accumulate in the
fuel tank.
To prevent water condensation.
(1) Top off the fuel tank or drain the fuel com-
pletely.
(2) Drain the water condensation from the fuel
filter.
Refilling the fuel tank.
Refill the fuel tank while there is still some fuel left in
the tank.
Protecting the fuel system against freezing and
water condensation.
Cold areas
In snow-covered areas, mountainous areas, skiing
areas, etc. where ambient temperatures drop be-
low 0°C (32°F) throughout the winter season, use
an anti-freeze solution in the fuel tank. Refueling
will also complement the effect of anti-freeze solu-
tion each time the fuel level drops to about one-half. After the winter season, drain the water which
may have accumulated in the fuel filter and fuel
tank in the manner same as that described under
Affected areas below.
Affected areas
When the water condensation is notched in the fuel
filter, drain the water from both the fuel filter and
fuel tank or use a water removing agent (or anti-
freeze solution) in the fuel tank.
Observe the instructions, notes, etc., indicated
on the label affixed to the anti-freeze solution (wa-
ter removing agent) container before use.
Trouble and possible cause Corrective action
1. Insufficient fuel supply to the injector
1) Fuel pump will not operate.
❍Defective terminal contact.Inspect connections, especially ground, and tighten
securely.
❍Trouble in electromagnetic or electronic circuit parts. Replace fuel pump.
2) Lowering of fuel pump function. Replace fuel pump.
3) Clogged dust or water in the fuel filter. Replace fuel filter, clean or replace fuel tank.
4) Clogged or bent fuel pipe or hose. Clean, correct or replace fuel pipe or hose.
5) Air is mixed in the fuel system. Inspect or retighten each connection part.
6) Clogged or bent breather tube or pipe. Clean, correct or replace air breather tube or pipe.
7) Damaged diaphragm of pressure regulator. Replace.
2. Leakage or blow out fuel
1) Loosened joints of the fuel pipe. Retightening.
2) Cracked fuel pipe, hose and fuel tank. Replace.
3) Defective welding part on the fuel tank. Replace.
4) Defective drain packing of the fuel tank. Replace.
5) Clogged or bent air breather tube or air vent tube.Clean, correct or replace air breather tube or air vent
tube.
3. Gasoline smell inside of compartment
1)Loose joints at air breather tube, air vent tube and fuel filler
pipe.Retightening.
2) Defective packing air tightness on the fuel saucer. Correct or replace packing.
3) Cracked fuel separator. Replace separator.
4) Inoperative fuel pump modulator or circuit. Replace.
4. Defective fuel meter indicator
1) Defective operation of fuel level sensor. Replace.
2) Defective operation of fuel meter. Replace.
5. Noise
1) Large operation noise or vibration of fuel pump. Replace.

Page 1429 of 2870

SUBARU FORESTER 2004 Service Repair Manual FU(H4DOTC)-74
FUEL INJECTION (FUEL SYSTEM)
Fuel System Trouble in General

Page 1430 of 2870

SUBARU FORESTER 2004 Service Repair Manual FUJI HEAVY INDUSTRIES LTD. G8080GE3
2004 FORESTER SERVICE MANUAL QUICK REFERENCE INDEX
ENGINE SECTION 2
This service manual has been prepared
to provide SUBARU service personnel
with the necessary inf

Page 1431 of 2870

SUBARU FORESTER 2004 Service Repair Manual EMISSION CONTROL
(AUX. EMISSION CONTROL DEVICE)
EC(H4DOTC)
Page
1. General Description ....................................................................................2
2. Front Catalytic Convert

Page 1432 of 2870

SUBARU FORESTER 2004 Service Repair Manual EC(H4DOTC)-2
EMISSION CONTROL (AUX. EMISSION CONTROL DEVICE)
General Description
1. General Description
A: CAUTION
Wear working clothing, including a cap, protec-
tive goggles, and protective shoes

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