2008 SUBARU LEGACY alternator

3-32Instruments and controls
turn off immediately. It may take several
driving trips. If the light does not go out,
take your vehicle to your authorized
SUBARU dealer immediately. !If the light is blinking:
If the light is blinking while driving, an
engine misfire condition has been de-
tected which may damage the emission
control system.
To prevent serious damage to the emis-
sion control system, you should do thefollowing. . Reduce vehicle speed.
. Avoid hard acceleration.
. Avoid steep uphill grades.
. Reduce the amount of cargo, if possi-
ble.. Stop towing a trailer as soon as
possible.
The CHECK ENGINE warning light/mal-
function indicator lamp may stop blinking
and come on steadily after several driving
trips. You should have your vehicle
checked by an authorized SUBARU deal-
er immediately. & Charge warning light
If this light comes on when the engine is
running, it may indicate that the charging
system is not working properly. If the light comes on while driving or does
not go out after the engine starts, stop the
engine at the first safe opportunity and
check the alternator belt. If the belt is
loose, broken or if the belt is in good
condition but the light remains on, contact
your nearest SUBARU dealer immedi-
ately.
& Oil pressure warning light
CAUTION
Do not operate the engine with the
oil pressure warning light on. This
may cause serious engine damage.
If this light comes on when the engine is
running, it may indicate that the engine oil
pressure is low and the lubricating system
is not working properly.
If the light comes on while driving or does
not go out after the engine starts, stop the
engine at the first safe opportunity and
check the engine oil level. If the oil level is
low, add oil immediately. If the engine oil is
at the proper level but the light remains on,
contact your nearest SUBARU dealer
immediately. &
AT OIL TEMPerature
warning light (AT mod- els)
The AT oil temperature warning light
comes on when the ignition switch is
turned to the “ON ”position and goes out
after approximately 2 seconds.
If this light comes on when the engine is
running, it may indicate that the automatic
transmission fluid temperature is too hot.
If the light comes on while driving,
immediately stop the vehicle in a safe
place and let the engine idle until the
warning light goes off. ! Automatic transmission control
system warning
If the light flashes after the engine starts, it
may indicate that the automatic transmis-
sion control system is not working prop-
erly. Contact your nearest SUBARU deal-
er for service immediately. & Low tire pressure
warning light (U.S.-spec.models)
When the ignition switch is turned to the “ON ”position, the low tire pressure warn-
ing light will come on for approximately 2
seconds to check that the tire pressure
monitoring system (TPMS) is functioning

Drive belts
The alternator, power steering pump, and
air conditioner compressor depend on
drive belts. Satisfactory performance re-
quires that belt tension be correct. &2.5-liter models
1) Power steering pump pulley
2) Air conditioner compressor pulley
3) Crank pulley in (mm)
Deflection
New belt Used belt
A 0.28
–0.35
(7.0 –9.0) 0.35
–0.43
(9.0 –11.0)
B 0.30
–0.33
(7.5 –8.5) 0.35
–0.40
(9.0 –10.0)
To check belt tension, place a straight-
edge (ruler) across two adjacent pulleys
and apply a force of 22 lbs (98 N, 10 kg)
midway between the pulleys by using a
spring scale. Belt deflection should be the
amount specified. & 3.0-liter models
It is unnecessary to check belt tension
periodically because your engine is
equipped with an automatic belt tension
adjuster. However, replacement of the belt
should be done according to the main-
tenance schedule in the "Warranty and
Maintenance Booklet". Consult your
SUBARU dealer for replacement.
If a belt is loose, cracked, or worn, contact
your SUBARU dealer. Manual transmission oil &
Checking the oil level
5-speed transmission (Non-turbo models)
1) Yellow handle Maintenance and service
11-21
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&Engine
Engine model EJ253
(2.5-liter, SOHC, non-turbo) EJ255
(2.5-liter, DOHC, turbo) EZ30D
(3.0-liter, DOHC, non-turbo)
Engine type Horizontally opposed, liquid cooled 4 cylinder,
4 stroke gasoline engine Horizontally opposed, liquid cooled 6 cylinder,
4 stroke gasoline engine
Displacement cu-in (cc) 150 (2,457) 183 (3,000)
Bore 6Stroke in (mm) 3.92 63.11 (99.5 679.0) 3.51 63.15 (89.2 680.0)
Compression ratio 10.0 : 1 8.4 : 1 10.7 : 1
Firing order 1– 3–2 – 4 1
–6– 3–2– 5–4
& Electrical system
Battery type and capacity (5HR) 2.5-liter models
MT 55D23L (12V-48AH)
AT 75D23L (12V-52AH)
3.0-liter models 75D23L (12V-52AH)
Alternator 12V-110A
Spark plugs 2.5-liter non-turbo models
FR5AP-11 (NGK)
2.5-liter turbo models SILFR6A (NGK)
3.0-liter models ILFR6B (NGK)Specifications
12-3
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12-8Specifications
&Fuse panel located in the engine compartment
A) FWD socket (AT models –except Turbo models and 3.0-liter models)
B) Main fuse Fuse
panel Fuse
rating Circuit
1 30A .ABS unit
. Vehicle dynamics control
unit
2 25A .Main fan (3.0-liter models)
3 10A .Secondary air combina-
tion valve (Turbo models)
4 25A .Sub fan (Except 3.0-liter
models)
5 25A .Main fan
6 20A .Audio
7 15A .Headlight (right side)
8 15A .Headlight (left side)
9 20A .Back-up light
10 15A .Horn
11 25A .Rear window defogger
12 15A .Fuel pump
13 15A .Automatic transmission
control unit
14 7.5A .Engine control unit
15 15A .Turn and hazard warning
flasher
16 20A .Parking switch
17 7.5A .Alternator