1999 SUBARU LEGACY flat tire

1. Propeller Shaft
NOTE:
Vibration while cruising may be caused by an unbalanced tire, improper tire inflation pressure, improper
wheel alignment, etc.
Symptom Possible cause Remedy
1. Vibration of propeller shaft
NOTE:
Vibration is caused by propeller
shaft during operation and is trans-
ferred to vehicle body. Generally
vibration increases in proportion to
vehicle speed.(1) Worn or damaged universal joint. Replace.
(2) Unbalanced propeller shaft due to bend or dent. Replace.
(3) Loose installation of propeller shaft. Retighten.
(4) Worn or damaged center bearing and damaged
center mounting rubber.Replace.
2. Tapping when starting and
noise while cruising, caused by
propeller shaft.(1) Worn or damaged universal joint. Replace.
(2) Worn spline of sleeve yoke. Replace.
(3) Loose installation of propeller shaft. Retighten.
(4) Loose installation of joint. Replace.
(5) Worn or damaged center bearing and damaged
center mounting rubber.Replace.
51
[K100]3-4DIAGNOSTICS
1. Propeller Shaft

1. Suspension
A: IMPROPER VEHICLE POSTURE OR IMPROPER WHEEL ARCH HEIGHT
Possible causes Countermeasures
(1) Permanent distortion or breakage of coil spring Replace.
(2) Unsmooth operation of damper strut Replace.
(3) Installation of wrong strut Replace with proper parts.
(4) Installation of wrong coil spring Replace with proper parts.
B: POOR RIDE COMFORT
1) Large rebound shock
2) Rocking of vehicle continues too long after running over bump and/or hump.
3) Large shock in bumping
Possible causes Countermeasures
(1) Breakage of coil spring Replace.
(2) Over-inflation pressure of tire Adjust.
(3) Improper wheel arch height Adjust or replace coil springs with new ones.
(4) Fault in operation of damper strut Replace.
(5) Damage or deformation of strut mount Replace.
(6) Unsuitability of maximum and/or minimum length of
damper strutReplace with proper parts.
(7) Deformation or loss of bushing Replace.
(8) Deformation or damage of helper in strut assembly Replace.
(9) Oil leakage of damper strut Replace.
C: NOISE
Possible causes Countermeasures
(1) Wear or damage of damper strut component parts Replace.
(2) Loosening of suspension link installing bolt and/or nut Retighten to the specified torque.
(3) Deformation or loss of bushing Replace.
(4) Unsuitability of maximum and/or minimum length of
damper strutReplace with proper parts.
(5) Breakage of coil spring Replace.
(6) Wear or damage of ball joint Replace.
(7) Deformation of stabilizer clamp Replace.
40
4-1[K1A0]DIAGNOSTICS
1. Suspension

1. Tire and Wheel Size
G4M0208
Tire size Rim size Rim offset
mm (in)P.C.D.
mm (in)
2200 cc modelFront and RearL
BRIGHTON
POSTP185/70R14 87S 14´5 1/2JJ 55 (2.17)
100 (3.94) dia. LS P195/60R15 87H 15´6JJ 55 (2.17)
T-type tire AWD T135/70D16 16´4T 50 (1.97)
2500 cc modelFront and RearGT P205/55R16 89H 16´6 1/2JJ 55 (2.17)
OUTBACK
SUSP205/70R15 95S 15´6JJ 55 (2.17)
T-type tireGT T135/70D16 16´4T 50 (1.97)
OUTBACK
SUST135/80R16 16´4T 50 (1.97)
NOTE: ªT-typeº tire for temporary use is supplied as a spare tire.
2. Tire Inflation Pressure
Tire sizeTire inflation pressure kPa (kg/cm
2, psi)
Light load Full load Trailler towing
Except OUTBACK and SUS modelP185/70R14 87S
P195/60R15 87H
P205/55R16 89HFt: 220 (2.2, 32)
Rr: 210 (2.1, 30)Ð
T135/70D16 420 (4.2, 60) Ð
OUTBACK and SUS modelP205/70R15 95SFt: 200 (2.0, 29)
Rr: 190 (1.9, 28)Ft: 200 (2.0, 29)
Rr: 220 (2.2, 32)
T135/80R16 420 (4.2, 60) Ð
2
4-2[S100]SPECIFICATIONS AND SERVICE DATA
1. Tire and Wheel Size

1. Tire and Wheel Size
G4M0208
Tire size Rim size Rim offset
mm (in)P.C.D.
mm (in)
2200 cc modelFront and RearL
BRIGHTON
POSTP185/70R14 87S 14´5 1/2JJ 55 (2.17)
100 (3.94) dia. LS P195/60R15 87H 15´6JJ 55 (2.17)
T-type tire AWD T135/70D16 16´4T 50 (1.97)
2500 cc modelFront and RearGT P205/55R16 89H 16´6 1/2JJ 55 (2.17)
OUTBACK
SUSP205/70R15 95S 15´6JJ 55 (2.17)
T-type tireGT T135/70D16 16´4T 50 (1.97)
OUTBACK
SUST135/80R16 16´4T 50 (1.97)
NOTE: ªT-typeº tire for temporary use is supplied as a spare tire.
2. Tire Inflation Pressure
Tire sizeTire inflation pressure kPa (kg/cm
2, psi)
Light load Full load Trailler towing
Except OUTBACK and SUS modelP185/70R14 87S
P195/60R15 87H
P205/55R16 89HFt: 220 (2.2, 32)
Rr: 210 (2.1, 30)Ð
T135/70D16 420 (4.2, 60) Ð
OUTBACK and SUS modelP205/70R15 95SFt: 200 (2.0, 29)
Rr: 190 (1.9, 28)Ft: 200 (2.0, 29)
Rr: 220 (2.2, 32)
T135/80R16 420 (4.2, 60) Ð
2
4-2[S100]SPECIFICATIONS AND SERVICE DATA
1. Tire and Wheel Size

12. ªT-typeº Tire
ªT-typeº tire for temporary use is prepared as a
spare tire.
CAUTION:
IKeep the inflation pressure at 420 kPa (4.2
kg/cm
2, 60 psi) at all times.
IWhen the wear indicator appears on the
tread surface, replace the tire with a new one.
IDo not use a tire chain with the ªT-typeº tire.
Because of the smaller tire size, a tire chain will
not fit properly and will result in damage to the
vehicle and the tire.
IDo not drive at a speed greater than 80 km/h
(50 MPH).
IDrive as slowly as possible and avoid pass-
ing over bumps.
IReplace with a conventional tire as soon as
possible since this ªT-typeº tire is only for tem-
porary use.
42
4-2[W1200]SERVICE PROCEDURE
12. ªT-typeº Tire

(5) Apply liquid packing to at least 1/3 of entire
perimeter of adjusting screw thread.
Liquid packing:
THREE BOND 1141
G4M0662
(6) Tighten adjusting screw to 15 N´m (1.5
kg-m, 11 ft-lb) and back off 26É.
(7) Install lock nut. While holding adjusting
screw with a wrench, tighten lock nut using ST.
ST 926230000 SPANNER
Tightening torque (Lock nut):
39
±10 N´m (4.0±1.0 kg-m, 29±7 ft-lb)
NOTE:
IHold adjusting screw with a wrench to prevent it
from turning while tightening lock nut.
IMake adjustment so that steering wheel can be
rotated fully from lock to lock without binding.
9) Check for service limit as per article of ªService
limitº.
Make replacement and
adjustment if necessary.
10) Install boot and mounting rubber to housing.
NOTE:
Apply grease through small hole in boot.11) Fit clip (large) to boot, and then install boot to
gearbox while holding boot flange.
After installing boot, fold back boot flange to the
extent that large clip can not be seen.
G4M0123
NOTE:
IBefore installing boot, be sure to apply grease to
the groove of tie-rod.
IInstall fitting portions of boots to the following
portions in both sides of assembled steering gear-
box.
(1) The groove on gearbox
(2) The groove on the rod
IMake sure that boot is installed without unusual
inflation or deflation.
12) Turn boot until it seats well on gearbox and
rubber mounting, then bend boot flange back.
G4M0124
21
[W3D0]4-3SERVICE PROCEDURE
3. Steering Gearbox (Power Steering System) [LHD model]

1. Power Steering
A: STEERING CONDITION
Trouble Possible cause Corrective action
IHeavy steering effort in all
ranges
IHeavy steering effort at stand
still
ISteering wheel surges when
turning.1. Pulley belt
IUnequal length of pulley belts
IAdhesion of oil and grease
ILoose or damage of pulley belt
IPoor uniformity of pulley belt cross section
IPulley belt touches to pulley bottom
IPoor revolution of pulleys except oil pump pulley
IPoor revolution of oil pump pulleyAdjust or replace.
2. Tire and rim
IImproper tires out of specification
IImproper rims out of specification
ITires not properly inflated*1Replace or reinflate.
3. Fluid
ILow fluid level
IAeration
IDust mix
IDeterioration of fluid
IPoor warming-up of fluid *2Refill, bleed air, replace
or instruct customer.
4. Idling speed
ILower idling speed
IExcessive drop of idling speed at start or at turning steering
wheel *3Adjust or instruct cus-
tomer.
5. Measure hydraulic pressure. Replace problem parts.
6. Measure steering effort. Adjust or replace.
IVehicle leads to one side or the
other.
IPoor return of steering wheel to
center
ISteering wheel surges when
turning.1. Fluid line
IFolded hose
IFlattened pipeReform or replace.
2. Tire and rim
IFlat tire
IMix use of different tires
IMix use of different rims
IAbnormal wear of tire
IUnbalance of remained grooves
IUnbalance of tire pressureFix or replace.
3. Front alignment
IImproper or unbalance caster
IImproper or unbalance toe-in
ILoose connection of suspensionAdjust or retighten.
4. Others
IDamaged joint assembly
IUnbalanced height
IOne-sided weightReplace, adjust or
instruct customer.
5. Measure steering effort. Adjust or replace.
*1 If tires and/or rims are wider, the load to power steering system is the more. Accordingly, in a condition, for example
before fluid warms-up, relief valve may work before maximum turning angle. In this case, steering effort may be heavy.
When measured hydraulic pressure is normal, there is no abnormal thing.
*2 In cold weather, steering effort may be heavy due to increased flow resistance of cold fluid. After warming up engine,
turn steering wheel from stop to stop several times to warm up fluid. Then if steering effort reduces normally, there is no
abnormal thing.
*3 In cold weather or with insufficient warm-up of engine, steering effort may be heavy due to excessive drop of idling
when turning steering wheel. In this case, it is recommended to start the vehicle with increasing engine speed than usual.
Then if steering effort reduces normally, there is no abnormal thing.
69
[K1A0]4-3DIAGNOSTICS
1. Power Steering

1. Entire Brake System
Trouble and possible cause Corrective action
1. Insufficient braking
(1) Fluid leakage from the hydraulic mechanismRepair or replace (cup, piston seal, piston boot, master cylin-
der piston kit, pipe or hose).
(2) Entry of air into the hydraulic mechanism Bleed the air.
(3) Excessively wide shoe clearance Adjust the clearance.
(4) Wear, deteriorated surface material, adhering water or fluid
on the liningReplace, grind or clean.
(5) Improper operation of master cylinder, disc caliper, brake
booster or check valveCorrect or replace.
2. Unstable or uneven braking
(1) Fluid on the lining, drum or rotor Eliminate cause of fluid leakage, clean, or replace.
(2) Drum or rotor eccentricity Correct or replace the drum or rotor.
(3) Worn brake drum, or damage to the drum caused by sand Correct by grinding, or replace.
(4) Improper lining contact, deteriorated surface material,
improper inferior material, or wearCorrect by grinding, or replace.
(5) Deformed back plate Correct or replace.
(6) Improper tire inflation Inflate to correct pressure.
(7) Disordered wheel alignment Adjust alignment.
(8) Loosened back plate or the support installing bolts Retighten.
(9) Loosened wheel bearing Retighten to normal tightening torque or replace.
(10) Trouble in the hydraulic system Replace the cylinder, brake pipe or hose.
(11) Uneven effect of the parking brake Check, adjust, or replace the rear brake and cable system.
3. Excessive pedal stroke
(1) Entry of air into the hydraulic mechanism Bleed the air.
(2) Excessive play in the master cylinder push rod Adjust.
(3) Fluid leakage from the hydraulic mechanismRepair or replace (cup, piston seal, piston boot, master cylin-
der piston kit, pipe or hose).
(4) Improperly adjusted shoe clearance Adjust.
(5) Improper lining contact or worn lining Correct or replace.
4. Brake dragging or improper brake return
(1) Insufficient pedal play Adjust play.
(2) Improper master cylinder return Clean or replace the cylinder.
(3) Clogged hydraulic system Replace.
(4) Improper return or adjustment of parking brake Correct or adjust.
(5) Weakened spring tension or breakage of shoe return
springReplace the spring.
(6) Excessively narrow shoe clearance Adjust the clearance.
(7) Improper disc caliper operation Correct or replace.
(8) Improper adjusted wheel bearing Adjust or replace.
5. Brake noise (1) (creak sound)
(1) Hardened or deteriorated lining Replace the shoe assembly or pad.
(2) Worn lining Replace the shoe assembly or pad.
(3) Loosened back plate or the support installing bolts Retighten.
(4) Loose wheel bearing Retighten to normal tightening torque.
(5) Dirty drum or rotorClean the drum or rotor, or clean and replace the brake
assembly.
6. Brake noise (2) (hissing sound)
(1) Worn lining Replace the shoe assembly or pad.
(2) Improper installed shoe or pad Correct or replace the shoe assembly or pad.
(3) Loose or bent drum or rotor Retighten or replace.
7. Brake noise (3) (click sound)
64
4-4[K100]DIAGNOSTICS
1. Entire Brake System