check engine SUBARU LEGACY 2003 3.G Service Manual

11-24SAE viscosity No. and Applicable Temperature
OM-H0205
Automatic transmission fluid
Checking the fluid level
The automatic transmission fluid expands largely as its temperature
rises; the fluid level differs according to fluid temperature. Therefore,
there are two different scales for checking the level of hot fluid andcold fluid on the dipstick.
Though the fluid level can be checked without warming up the fluid on the “COLD” range, we recommend checking the fluid level when
the fluid is at operating temperature. n Checking the fluid level when the fluid is hot
Check the fluid level monthly.
1. Drive the vehicle several miles to raise the temperature of the
transmission fluid up to normal operating temperature; 158 to 176 F
(70 to 80 C) is normal.
2. Park the vehicle on a level surface and set the parking brake.
3. First shift the selector lever in each position. Then shift it in the “P”
position, and run the engine at idling speed.

11-26Front differential gear oil (AT vehicles)
Checking the oil level
Check the differential oil level monthly.
HBA010BB
Lower level Upper levelHBB004EB
1. Park the vehicle on a level surface and stop the engine.
2. Pull out the dipstick, wipe it clean, and insert it again.
3. Pull out the dipstick again and check the oil level on it. If it is belowthe lower level, add oil to bring the level up to the upper level.
Recommended grade and viscosity
Each oil manufacturer has its own base oils and additives. Never use
different brands together.
Oil grade: API classification GL-5

11
Maintenance and service11-29
–
CONTINUED –
SAE viscosity No. and Applicable Temperature
OM-H0205
Power steering fluid
Checking the fluid level
WARNING
Be careful not to burn yourself because the fluid may be hot.
CAUTION
When power steering fluid is being added, use only clean fluid,
and be careful not to allow any dirt into the tank. And never use
different brands together. Avoid spilling fluid when adding it in the tank.
The power steering fluid expands greatly as its temperature rises; the
fluid level differs according to fluid temperature. Therefore, the reser-
voir tank has two different checking ranges for hot and cold fluids.
Check the power steering fluid level monthly.
1. Park the vehicle on a level surface, and stop the engine.
2. Check the fluid level of the reservoir tank.
When the fluid is hot after the vehicle has been run: Check that the oillevel is between “HOT MIN ” and “HOT MAX ” on the surface of the
reservoir tank.

11
Maintenance and service11-33
–
CONTINUED –

Recommended clutch fluid
FMVSS No. 116, fresh DOT 3 or 4 brake fluid
Brake booster
If the brake booster does not operate as described below, have it
checked by your SUBARU dealer.
1. With the engine off, depress the brake pedal several times, applying
the same pedal force each time. The distance the pedal travels should
not vary.
2. With the brake pedal depressed, start the engine. The pedal should
move slightly down to the floor.
3. With the brake pedal depressed, stop the engine and keep the pedal
depressed for 30 seconds. The pedal height should not change.
4. Start the engine again and run for about one minute then turn it off.
Depress the brake pedal several times to check the brake booster.
Brake booster operates properly if the pedal stroke decreases with each
depression.

11-34Brake pedal
Check the brake pedal free play and reserve distance according to the
maintenance schedule in the
“Warranty and Maintenance Booklet ”.
Checking the brake pedal free play
OM-H0224
0.04 —
0.12 in
(1.0 — 3.0 mm)
Stop the engine and firmly depress the brake pedal several times.
Lightly press the brake pedal down with one finger to check the free
play with a force of less than 2 lb (10 N, 1 kg).
If the free play is not within proper specification, contact your
SUBARU dealer. Checking the brake pedal reserve distance
OM-H0225
More than 2.56 in (65 mm)
Depress the pedal with a force of approximately 66 lb (294 N, 30 kg)

11
Maintenance and service11-35
–
CONTINUED –
and measure the distance between the upper surface of the pedal
pad and the floor.
When the measurement is smaller than the specification, or when the
pedal does not operate smoothly, contact with your SUBARU dealer.
Clutch pedal (Manual transmission vehicles)
Check the clutch pedal free play and reserve distance according to the
maintenance schedule in the “Warranty and Maintenance Booklet ”.
Checking the clutch function
Check the clutch engagement and disengagement.
1. With the engine idling, check that there are no abnormal noises
when the clutch pedal is depressed, and that shifting into 1st or re-
verse feels smooth.
2. Start the vehicle by releasing the pedal slowly to check that the en-gine and transmission smoothly couple without any sign of slippage. Checking the clutch pedal free play
OM-H0224
0.16 —
0.51 in
(4.0 — 13.0 mm)
Lightly press the clutch pedal down with your finger until you feel re-
sistance, and check the free play.
If the free play is not within proper specification, contact your
SUBARU dealer.

11
Maintenance and service11-47
–
CONTINUED –
tighten it to the specified torque.
Aluminum wheels (if equipped)
Aluminum wheels can be scratched and damaged easily. Handle them
carefully to maintain their appearance, performance, and safety.
When any of the wheels is removed and replaced for tire rotation or to
change a flat, always check the tightness of the wheel nuts after driving
approximatly 600 miles (1,000 km). If any nut is loose, tighten it to the
specified torque. Never apply oil to the threaded parts, wheel nuts, or tapered surface
of the wheel. Never let the wheel rub against sharp protrusions or curbs.
Be sure to fit tire chains on uniformly and completely around the tire,
otherwise the chains may scratch the wheel. When wheel nuts, balance weights, or the center cap is replaced, be
sure to replace them with genuine SUBARU parts designed for aluminumwheels.
Windshield washer fluid
CAUTION
Never use engine coolant as washer fluid because it could cause paint damage.
Check the level of the washer fluid at each fuel stop. If the level is low, fill
the fluid up to the neck of the reservoir.Use windshield washer fluid. If windshield washer fluid is unavailable use
clean water.
In areas where water freezes in winter, use an anti-freeze type windshield
washer fluid. SUBARU Windshield Washer Fluid contains 58.5% methyl
alcohol and 41.5% surfactant, by volume. Its freezing temperature varies
according to how much it is diluted, as indicated below.

11-52It is unnecessary to periodically check the battery fluid level or periodi-
cally refill with distilled water. Fuses
CAUTION
Never replace a fuse with one having a higher rating or with mate-
rial other than a fuse because serious damage or a fire could re-sult.
HBB008DA HB8003CA
The fuses are designed to melt during an overload to prevent damage to
the wiring harness and electrical equipment. The fuses are located intwo fuse boxes. One is located under the instrument panel behind the
coin tray on the driver’s seat side. The other one is housed in the engine
compartment. The fuse puller and spare fuses are stored in the main
fuse box cover in the engine compartment.
If any lights, accessories or other electrical controls do not operate, in-
spect the corresponding fuse. If a fuse has blown, replace it.

14
Index14-3
Charge warning light
3-13
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHECK ENGINE warning light/Malfunction indicator lamp 3-12 . . . . . . . . . . .
Child restraint systems 1-33
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Child safety locks 2-20
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cigarette lighter socket (if equipped) 6-9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cleaning aluminum wheels 10-4
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cleaning fog light lens (for OUTBACK) 10-4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cleaning the interior 10-6
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Clock 3-19
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Clutch fluid (MT vehicles) 11-32
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Clutch pedal (Manual transmission vehicles) 11-35 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Coin compartment 6-7
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Convenience hook 6-20
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Convenient tie-down hooks (if equipped) 6-24 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cooling system 11-14
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Corrosion protection 10-5
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cruise control (if equipped) 7-44
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cup holder 6-8
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
D Daytime running light system 3-21
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Dimensions 12-2
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Disc brake pad wear warning indicators 7-33 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Dome light 6-2
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Door locks 2-3
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Door open warning lights 3-17
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Drive belts 11-22
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Driving in foreign countries 8-5
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Driving tips for AWD vehicles 8-6
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Dual moonroofs (Station wagon) 2-32
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
E
Electrical system 12-3
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Emergency Locking Retractor (ELR) 1-18 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Engine 12-3
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Engine compartment overview 11-7
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .