Subaru 2003 Impreza - Manual (Page 242)

IMPREZA(NA) A1850BE-A (ENGLISH)
7
Starting and operating
7-21
– CONTINUED –
Rear viscous limited slip differential
(LSD) (WRX)
The LSD provides optimum distribution of power ac-
cording to the difference in revolutions between the
right and left rear wheels that may be caused by
certain driving conditions, thereby improving driving
stability on snow-covered, muddy or other slippery
roads.
CAUTION
D Never start the engine while a tire on one
side is jacked up, as the vehicle may move.
D If one rear tire is spinning in mud, avoid
continued spinning at high speed as this
could adversely affect the LSD.
D If a different size rear tire is temporarily
used (as in an emergency), it will adversely af-
fect the LSD. Always replace it with a regular
size tire as soon as possible.
Power steering
The power steering system operates only when the
engine is running.
If you lose power steering assist because the en-
gine stops or the system fails to function, you can
steer but it will take much more effort.
NOTE
Right after the engine has been started and be-
fore it has warmed up, you may hear a noise
coming from areas adjacent to the power steer-
ing pump which is located at the right-front area
of the engine compartment. This noise is normal.
It does not indicate power steering system
trouble.
CAUTION
Do not hold the steering wheel at the fully
locked position left or right for more than five
seconds. This may damage the power steer-
ing pump.