alternator belt SUBARU IMPREZA WRX 2002 2.G Owners Manual

Instruments and controls
3-11
– CONTINUED –
NOTE This light also comes on when the fuel filler cap is not tightened until it clicks.
If you have recently refueled your vehicle, the cause
of the CHECK ENGINE warning light/malfunction indi-
cator lamp coming on could be a loose or missing
fuel filler cap. Remove the cap and retighten it until it
clicks. Make sure nothing is interfering with the seal-
ing of the cap. Tightening the cap will not make the
CHECK ENGINE warning light 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 detected which may damage
the emission control system.
To prevent serious damage to the emission control
system, you should do the following: Reduce vehicle speed.
Avoid hard acceleration.
Avoid steep uphill grades.
Reduce the amount of cargo, if possible.
Stop towing a trailer as soon as possible. The CHECK ENGINE warning light may stop blink-ing and come on steadily after several driving trips.
You should have your vehicle checked by an autho-
rized SUBARU dealer immediately.
Charge warning light
If this light comes on when the engine is running, itmay indicate that the charging system is not work-
ing 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 condi-
tion but the light remains on, contact your nearest
SUBARU dealer immediately. Oil pressure warning light
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.

Maintenance and service
11-22
Drive belts
The alternator, power steering pump, and air condi-
tioner compressor depend on drive belts. Satisfacto-
ry performance requires that belt tension be correct.
HGA005BC
1) Power steering pump pulley
2) Air conditioner compressor pulley
3) Crank pulleyin (mm)
Deflection
New beltUsed belt
A0.28 —
0.35
(7.0 — 9.0)0.35 — 0.43
(9.0 — 11.0)
B0.30 — 0.33
(7.5 — 8.5)0.35 — 0.40
(9.0 — 10.0)
To check belt tension, place a straightedge (ruler)
across two adjacent pulleys and apply a force of 22lb (98 N, 10 kg) midway between the pulleys by us- ing a spring scale. Belt deflection should be the
amount specified. If a belt is loose, cracked, or
worn, contact your SUBARU dealer.