Page 3061 of 3115
- SUSPENSION AND AXLETIRE AND WHEEL
SA-5
1955 Author: Date:
2004 LAND CRUISER (RM1071U)
4. CHECK FRONT SUSPENSION FOR LOOSENESS
5. CHECK STEERING LINKAGE FOR LOOSENESS
6. CHECK BALL JOINT FOR LOOSENESS
7. CHECK SHOCK ABSORBER WORKS PROPERLY
Check that oil leaks
Check the mounting bushings for wear
Bounce front and rear of the vehicle
Page 3062 of 3115
SA140-09
- SUSPENSION AND AXLETROUBLESHOOTING
SA-1
1951 Author: Date:
2004 LAND CRUISER (RM1071U)
TROUBLESHOOTING
PROBLEM SYMPTOMS TABLE
Use the table below to help you find the cause of the problem. The numbers indicate the priority of the likely
cause of the problem. Check each part in order. If necessary, replace these parts.
(w/ Differential locking system):
Check that the transfer shift lever is shifted to the L position.
When switching differential Free e Lock, the indicator light will blink if the gears of the differen-
tial lock sleeve are not meshed. If this occurs, when the tires are rotated to apply differential
power to the differential, the differential locks and the indicator light lights up.
SymptomSuspect AreaSee page
Bottoming
1. Vehicle (Overloaded)
2. Spring (Weak)
3. Shock absorber (Worn)-
SA-65
SA-171
SA-62
SA-174
Sways/pitches
1. Tire (Worn or improperly inflated)
2. Stabilizer bar (Bent or broken)
3. Shock absorber (Worn)SA-4
SA-80
SA-184
SA-62
SA-174
Front wheel shimmy
1. Tire (Worn or improperly inflated)
2. Wheel (Out of balance)
3. Shock absorber (Worn)
4. Wheel alignment (Incorrect)
5. Ball joint (Worn)
6. Hub bearing (Loosen or worn)
7. Steering linkage (Loosen or worn)
8. Steering gear (Out of adjustment or broken)SA-4
SA-4
SA-62
SA-6
SA-71
SA-76
SA-1 1
-
SR-48
Abnormal tire wear
1. Tire (Improperly inflated)
2. Wheel alignment (Incorrect)
3. Shock absorber (Worn)
4. Suspension parts (Worn)SA-4
SA-6
SA-62
SA-174
-
Noise in front differential
1. Oil level (Low or wrong grade)
2. Excessive backlash between pinion and ring gear
3. Ring, pinion or side gears (Worn or chipped)
4. Pinion shaft bearing (Worn)
5. Side bearing (Worn)SA-35
SA-40
SA-40
SA-40
SA-40
Oil leak from front differential
1. Oil level (Too high or wrong grade)
2. Front differential rear oil seal (Worn or damaged)
3. Side gear oil seal (Worn or damaged)
4. Companion flange (Loosen or damaged)
5. Side gear shaft (Damaged)SA-35
SA-40
SA-40
SA-40
SA-40
Page 3063 of 3115
SA-2
- SUSPENSION AND AXLETROUBLESHOOTING
1952 Author: Date:
2004 LAND CRUISER (RM1071U) Noise in rear axle
1. Oil level (Low or wrong grade)
2. Excessive backlash between pinion and ring gear
3. Ring, pinion or side gears (Worn or chipped)
4. Pinion shaft bearing (Worn)
5. Axle shaft bearing (Worn)SA-95
SA-102
SA-121
SA-143
SA-102
SA-121
SA-143
SA-102
SA-121
SA-143
SA-83
Oil leak from rear axle1. Oil seal (Worn or damaged)
2. Rear axle housing (Cracked)SA-83
-
Oil leak from rear differential
1. Oil level (Too high or wrong grade)
2. Rear differential front oil seal (Worn or damaged)
3. Companion flange (Loosen or damaged)SA-95
SA-95
SA-102
SA-121
SA-143
Diff. lock Indicator lights do not light up
1. Fusible link (Blown)
2. GAUGE fuse (Blown)
3. Bulb (Burned out)
4. Wiring or ground (Faulty)-
-
-
-
Diff. lock Indicator lights do not light up
(Diff. lock control switch RR position)
1. Diff. fuse (Blown)
2. Diff. lock control switch (Faulty)
3. Diff. lock ECU (Faulty)
4. Wiring or ground (Faulty)-
SA-163
SA-163
-
Differential lock does not operate
1. Diff. lock control switch (Faulty)
2. Diff. lock actuator (Faulty)
3. Diff. lock ECU (Faulty)
4. Differential carrier (Faulty)
5. Wiring or ground (Faulty)SA-163
SA-163
SA-163
-
-
After differential lock, lock is not released
When vehicle speed is at 8 km/h (5 mph) or more1. Speed sensor (Faulty)
2. Diff. lock ECU (Faulty)
3. Wiring or ground (Faulty)SA-163
SA-163
-
Page 3064 of 3115
SA28F-03
START
Preliminary Check
Tire pressure
Vehicle height
Brake dragging ROAD TEST
Does the vehicle lead/pull?
Cross switch front tire & wheel
assemblies (left & right).
Does the vehicle lead/pull in
same direction as before?
Check front wheel alignment.
Is it within specification?
Adjust front wheel alignment.Reverse the front left side
tire and rebalance it.
Does the vehicle
lead/pull to the left?
COMPLETE
Are the tires uni-directional type?
Choose the position of front tire & wheel
assemblies where there is least amount of pull.
Increase left front camber and decrease
right front camber until lead/pull is eliminated.Increase right front camber and decrease
left front camber until lead/pull is eliminated.
NO
YES
YES
NO
YES
YES
NO
YES
NO COMPLETE
NONOYES NOIs there steering
off center?
Adjust front tie rods.
NO
YES
Is the lead/pull stronger
than before?
YES
NOTICE : Do not exceed 1° of cross camber.
Do not exceed adjustment range.
Select a flat road where the vehicle can be driven in a straight line for 100 meters at a constant speed
of 35mph. Please confirm safety and set the steering wheel to its straight position. Drive the vehicle in
a straight line for 100 meters at a constant speed of 35mph without holding the steering wheel.
(1) The vehicle can keep straight but the steering wheel has some angle.
STEERING OFF CENTER (See page SR-10)
(2) The vehicle cannot keep straight.
STEERING PULL
YES NO
YES ROAD TEST
Does the vehicle still lead/pull?
NO ROAD TEST
Does the vehicle still lead/pull? ROAD TEST
Does the vehicle still lead/pull?
ROAD TEST
Does the vehicle still lead/pull?NO
Contact your local retail tire distributor.YES
*
*
- SUSPENSION AND AXLETROUBLESHOOTING
SA-3
1953 Author: Date:
2004 LAND CRUISER (RM1071U)
REPAIR PROCEDURES
HINT:
This is a flow chart for vehicle pull.
