Datsun 1980 200SX Service Manual page 364

Trouble
DiagnO
tJS and
Corrections
STEERING SYSTEM
POWER STEERING
Condition
Oil
pressure
does
not
build up
Steering
wheel
moves
heavily
Steering
wheel fails
to
return
Steering effort
is not
the
same
in
both
directions
Unstable
running
Noisy
pump
ST
24
Probable
cause
Pump drive
belt
slipping
on
pulley
Pump malfunctioning
Oil
leaking through
hose joints
Oil
leaking through
power
steering
Lack of oil in
oil
pump
Air
present
in oil
Oil
pressure too
low
Wheel alignment
out
of
specifications
or
air
pressure
in tires
too
low
Steering
gears
improperly engaged
Steering
column
out
of
alignment
Worn
or damaged
ball
joint
at
suspension
and
steering linkage
Idler
arm
dragging
Refer
to items
marked
above
Front wheel
caster
improperly adjusted
Internal
gears
dragged
or
gouged
Oil leakage
in
steering
gear
Stuffy
oil
passage in
steering
gear
Wheel
bearing not properly adjusted
Stuck
or
damaged
control valve in
steering
gear
Front wheel
alignment not properly
Excessive
steering
gear
play
Play
at
suspension
and
linkage
ball
joint
Lack of
oil in
oil pump
Hoses
or
oil filter clogged
Loose
pulley
Belt noisy
or
slapping
Broken pump
part
r
Corrective
action
Readjust
belt tension
Replace
Replace
or
retighten copper washer
Replace
sealing parts at
steering
gear
Refill
Bleed
air
See Hydraulic
system
check
Re
a1ign
or
inflate tires
to correct
pressure
Replace
gear
assembly
Repair
or
replace
Replace
Repair
or
replace
Readjust
Replace
gear
assembly
Replace sealing
parts
Replace
gear
assembly
Readjust
Replace
gear
assembly
Readjust
Readjust
backlash
or
replace
gear
assembly
Replace
Refill
Clean
or
if necessary
replace
Repair
Readjust
tension
Replace