Subaru XT 1988 Service Manual page 942

4-3
STEERING SYSTEM
*8
Grinding noise
L Vane pump aeration
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Inspect and retighten fluid
(continuous)
line connection.
While engine is running
I
Refill fluid and vent air.
Vane pump seizing
Pulley bearing seizing of
J Replace Oil pump ASSY
Oil pump ASSY or Motor
pump ASSY
I
Replace
Folded hose, flat pipe
I
I
Squeal, squeak. Maladjustment of pulley Adjust or replace
(intermittent or continuous)
belt (Replace two belts as a set)
While engine is running
Damaged or charged pulley
belt
Unequal length of pulley
belts
Run out or soilage of
V-groove surface of Oil
Clean or replace
pump pulley
Sizzling noise
I
Fluid aeration
I
Fix wrong part causing
(continuous)
aeration.
While engine is running
Replace fluid and vent air
Damaged pipe of Gearbox
Replace pipe
ASSY
Abnormal inside of hose or
pipe.
Rectify or replace
Flat hose or pipe
I
Abnormal inside of oil tank
I
: Replace
or motor pump ASSY
Removed oil tank cap or
I oil reservoir cap
I
: Install cap
Whistle Abnormal pipe of Gearbox Replace
(conti nuous) ASSY or abnormal inside
Bad parts of Gearbox ASSY
While engine is running of Hose
or Hose
*8 Grinding noise may be heard immediately after the engine start in extremely cold condition.
In this case, if the noise goes off during warm up there is no abnormal function in the system.
This is due to the fluid characteristic in extremely cold condition.
96
I
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