Lexus GS300/400 (2000 year). Service manual — part 254
RS086–01
RS–70
–
SUPPLEMENTAL RESTRAINT SYSTEM
WIRE HARNESS AND CONNECTOR
2301
REPLACEMENT
In the following cases,replace the wire harness or connector.
If any part of the SRS wire harness or any connector has been found to be faulty in troubleshoot-
ing.
If any part of the SRS wire harness or any connector has been found to be faulty during the check
in items. (See page
CAUTION:
If the wire harness used in the SRS is damaged, replace the whole wire harness assembly.
SA0R1–03
–
SUSPENSION AND AXLE
TROUBLESHOOTING
SA–1
2001
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.
Symptom
Suspect Area
See page
Wander/pulls
5. Tires (Worn or improperly inflated)
6. Wheel alignment (Incorrect)
7. Steering linkage (Loosen or worn)
8. Hub bearings (Loosen or worn)
9. Steering gear (Out of adjustment or broken)
10.Suspension parts (Worn out)
–
–
–
Bottoming
1. Vehicle (Overloaded)
2. Spring (Weak)
3. Shock absorber (Worn out)
–
Sways/pitches
1. Tires (Worn or improperly inflated)
2. Stabilizer bar (Bent or broken)
3. Shock absorber (Worn out)
Front wheel shimmy
1. Tires (Worn or improperly inflated)
2. Wheels (Out of balance)
3. Shock absorber (Worn out)
4. Wheel alignment (Incorrect)
5. Ball joints (Worn)
6. Hub bearings (Loosen or worn)
7. Steering linkage (Loosen or worn)
8. Steering gear (Out of adjustment or broken)
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–
Abnormal tire wear
1. Tires (Improperly inflated)
2. Wheel alignment (Incorrect)
3. Suspension parts (Worn out)
4. Shock absorber (Worn out)
–
Noise in rear 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)
Oil leak from rear differential
1. Oil level (Too high or wrong grade)
2. Drive pinion oil seal (Worn or damaged)
3. Side gear oil seal (Worn or damaged)
4. Companion flange (Loose or damaged)
5. Side gear shaft (Damaged)
SA0R6–01
F02311
R11097
F02313
SST
SA–10
–
SUSPENSION AND AXLE
FRONT AXLE HUB
2010
REMOVAL
1.
REMOVE FRONT WHEEL
Torque: 103 N·m (1,050 kgf·cm, 76 ft·lbf)
2.
REMOVE FRONT BRAKE CALIPER AND DISC
(a)
Remove the 2 bolts and brake caliper from the steering
knuckle.
Torque: 118 N·m (1,200 kgf·cm, 87 ft·lbf)
(b)
Support the brake caliper securely.
(c)
Remove the disc.
3.
CHECK BEARING BACKLASH AND AXLE HUB
DEVIATION
(a)
Using a dial indicator near the center of the axle hub and
check the backlash in the bearing shaft direction.
Maximum: 0.05 mm (0.0020 in.)
If the blacklash exceeds the maximum, replace the bearing.
(b)
Using a dial indicator, check the deviation at the surface
of the axle hub outside the hub bolt.
Maximum: 0.05 mm (0.0020 in.)
If the deviation exceeds the maximum, replace the axle hub.
4.
REMOVE ABS SPEED SENSOR
Remove the bolt and ABS speed sensor.
Torque: 7.8 N·m (80 kgf·cm, 69 in.·lbf)
5.
REMOVE STEERING KNUCKLE
(a)
Remove the upper side of the clip and nut.
Torque: 87 N·m (890 kgf·cm, 64 ft·lbf)
(b)
Using SST, remove the steering knuckle from the upper
suspension arm.
SST
09610–20012
F02314
–
SUSPENSION AND AXLE
FRONT AXLE HUB
SA–11
2011
(c)
Remove the 2 bolts and steering knuckle from the lower
ball joint.
Torque: 113 N·m (1,150 kgf·cm, 83 ft·lbf)
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