Downloaded from www.Manualslib.com manuals search engine 6A-1 Steering General Diagnosis:
Ste eri ng
Steering General Diagnosis
Precautions
Precautions for Steering DiagnosisS6RW0D6100001
Since the problems in steering involve several systems, they must all be considered when diagnosing a complaint. To
avoid using the wrong symptom, always road test the vehicle first. Proceed with the following preliminary inspection
and correct any defects which are found.
1) Inspect tires for proper pressure and uneven wear.
2) Raise vehicle on a hoist and inspect steering system for loose or damaged parts.
3) Spin front wheels. Inspect for out-of-round tires, out-of-balance tires, bent rims, loosen and/or rough wheel
bearings.
Diagnostic Information and Procedures
Steering Symptom DiagnosisS6RW0D6104001
Condition Possible cause Correction / Reference Item
Hard steeringTire not adequately inflatedInflate tires to proper pressure.
Malfunction of power steering systemCheck and correct. Refer to “P/S System
Symptom Diagnosis in Section 6C”.
Bind in tie-rod end ball studs or lower
ball jointsReplace tie-rod end or front suspension control
arm.
Disturbed front wheel alignmentCheck and adjust front wheel alignment.
Bind in steering columnRepair or replace steering column assembly.
Rack and pinion adjustmentCheck and adjustment rack and pinion torque.
Too much play in steeringWheel bearings wornReplace wheel bearing.
Loose steering gear case boltsTighten gear case bolts.
Faulty steering gear case assemblyReplace steering gear case assembly.
Worn steering shaft jointsReplace steering lower shaft assembly.
Worn tie-rod ends or tie-rod inside ball
jointsReplace tie-rod end or tie-rod.
Worn lower ball jointsReplace front suspension control arm.
Rack and pinion adjustmentCheck and adjustment rack and pinion torque.
Poor return abilityBind in tie-rod end ball studsReplace tie-rod end.
Bind in ball jointsReplace front suspension control arm.
Bind in steering columnReplace steering column assembly.
Disturbed front end alignmentCheck and adjust front end alignment.
Faulty steering gear case assemblyReplace steering gear case assembly.
Tires not adequately inflatedAdjust tire pressure.
Rack and pinion adjustmentCheck and adjustment rack and pinion torque.
Rack and pinion noise
(Rattle or chuckle)Loose steering gear case boltsTighten steering gear case bolts.
Rack and pinion adjustmentCheck and adjustment rack and pinion torque.
Faulty steering gear case assemblyReplace steering gear case assembly.
Broken or otherwise damaged wheel
bearing(s)Replace wheel bearing(s).
Wander or poor steering
stabilityMismatched or uneven tiresReplace or inflate tires to proper pressure.
Loosen ball joints and tie-rod endsReplace suspension control arm or tie-rod end.
Faulty struts or mountingsReplace strut or repair mounting.
Loose stabilizer barTighten or replace stabilizer bar or bush.
Broken or sagging coil springsReplace coil spring.
Rack and pinion adjustmentCheck and adjustment rack and pinion torque.
Disturbed front wheel alignmentCheck and adjust front wheel alignment.
Faulty steering gear case assemblyReplace steering gear case assembly.
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Steering System InspectionS6RW0D6104002
Check steering system referring to the following items.Erratic steering when
brakingWorn wheel bearingsReplace wheel bearing.
Broken or sagging coil springsReplace coil spring.
Wheel tires are inflated unequallyInflate tires to proper pressure.
Disturbed front wheel alignmentCheck and adjust front wheel alignment.
Brakes not working in unisonCheck and repair brake system.
Leaking wheel cylinder or caliperRepair or replace wheel cylinder or caliper.
Warped discsReplace brake disc.
Badly worn brake liningsReplace brake shoe lining.
Drum is out of round in some brakesReplace brake drum.
Defective wheel cylindersReplace or repair wheel cylinder. Condition Possible cause Correction / Reference Item
Inspection Item Referring section
Steering wheel Play, rattle “Steering Wheel Play Check in Section 6C”
Tie-rod end Looseness and damage “Tie-Rod End Inspection in Section 6C”
Wheel alignment “Front Wheel Alignment Inspection and Adjustment in
Section 2B”
Tie-rod end boot Damage “Tie-Rod End Boot On-Vehicle Inspection in Section 6C”
Steering rack boot Damage “Steering Rack Boot Inspection in Section 6C”
Steering shaft joint Rattle and damage “Steering Shaft Joint On-Vehicle Inspection in Section 6C”
EPS system Operation “EPS System Check in Section 6C”
Downloaded from www.Manualslib.com manuals search engine 6C-36 Power Assisted Steering System:
Tie-Rod End Boot On-Vehicle InspectionS6RW0D6306002
Check boot for crack and damage. If any defect is found,
replace it with a new one.
Tie-Rod End Removal and InstallationS6RW0D6306003
Removal
1) Hoist vehicle, and then remove front wheel.
2) Remove tie-rod end nut (1) from steering knuckle.
3) Disconnect tie-rod end (1) from knuckle (2) using
puller (3).4) For ease of adjustment after installation, make
marking (1) of tie-rod end lock nut (2) position on tie-
rod end thread. Then, loosen lock nut and remove
tie-rod end (3) from tie-rod (4).
Installation
1) Install tie-rod end lock nut (1) and tie-rod end (2) to
tie-rod (3). Align lock nut with mark (4) on tie-rod
thread.
2) Connect tie-rod end to knuckle. Tighten tie-rod end
nut (1) to specified torque.
Tightening torque
Tie-rod end nut (a): 45 N·m (4.5 kgf-m, 32.5 lb-ft)
I3RM0A630024-01
I3RM0A630025-01
21
3
I4RS0A630040-01
I4RS0A630041-01
I4RS0A630042-01
I3RM0A630029-01
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3) Inspect for proper toe referring to “Front Wheel
Alignment Inspection and Adjustment in Section 2B”.
4) After confirming proper toe, tighten tie-rod end lock
nut to specified torque.
Tightening torque
Tie-rod end lock nut (a): 45 N·m (4.5 kgf-m, 32.5
lb-ft)
5) Tighten wheel bolts to specified torque and lower
hoist.
Tightening torque
Wheel bolt: 85 N·m (8.5 kgf-m, 61.5 lb-ft)
Tie-Rod End InspectionS6RW0D6306004
• Inspect for play in ball joint.
• Inspect for play in rack end ball joint.
In either case, if found defective, replace.
Steering Shaft Joint On-Vehicle InspectionS6RW0D6306005
Check shaft joint for wear, breakage and any other
damage and replace if any defect exists.
Steering Gear Case Assembly Removal and
Installation
S6RW0D6306006
Removal
CAUTION!
Be sure to set front wheels (tires) in straight
direction and remove ignition key from key
cylinder before performing the following
steps, otherwise, contact coil of air bag
system may get damaged.
1) Remove steering joint cover.
2) Make alignment marks (1) on pinion shaft (2) and
joint of steering lower shaft (3) for a guide during
reinstallation.
3) Loosen joint bolt (steering column side) (4) and
remove joint bolt (pinion shaft side) (5) and
disconnect steering lower shaft (3) from pinion shaft
(2).
4) Disconnect torque sensor connector and P/S motor
connector from steering gear case.
5) Remove front suspension frame referring to “Front
Suspension Frame, Stabilizer Bar and/or Bushing
Removal and Installation in Section 2B”, and then
remove steering gear case.
Installation
1) Install grommet (1) as shown in figure.
I3RM0A630030-01
I4RS0A630043-01
I4RS0B630012-01
2. Protrusion
5
2
1
5
34
3
I4RS0B630013-01
1
2
1
2
I5RW0A630018-02
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2) Install steering gear case to vehicle, and then install
front suspension frame referring to “Front
Suspension Frame, Stabilizer Bar and/or Bushing
Removal and Installation in Section 2B”.
3) Install steering gear case to suspension frame (3) as
follows.
a) Set member bracket (2) to steering gear case
(1).
b) Install all steering gear case mounting bolts by
hand.
c) Tighten steering mounting bolts in numerical
order and specified torque.
Tightening torque
Steering gear case mounting bolt (a): 70 N·m (
7.0 kgf-m, 51.0 lb-ft)
4) Connect torque sensor connector and P/S motor
connector to steering gear case.
5) Be sure that steering wheel and brake discs (right &
left) are all straight-ahead position and then insert
steering lower shaft (5) into steering pinion shaft (3)
with matching marks (4).
6) Tighten steering shaft joint lower bolt (1) and upper
bolt (2) to specified torque (tighten lower side first
and then tighten upper side).
Tightening torque
Steering lower shaft assembly upper joint bolt
(a): 25 N·m (2.5 kgf-m, 18.5 lb-ft)
Steering lower shaft assembly lower joint bolt
(b): 25 N·m (2.5 kgf-m, 18.5 lb-ft)
7) Install steering joint cover.Steering Rack Boot InspectionS6RW0D6306007
Hoist vehicle.
Inspect each boot for tear. A torn boot allows entry of
dust and water which can cause wear to steering rack
and pinion to produce noise as well as rust to result in
malfunction of steering system.
Even if boot tear is small, replace with new one.
Also, check each boot for dent. If there is a dent, keep
boot in most compressed state for some seconds to
correct dent.
Boots should be visually inspected for any damage, dent
and tear during every periodical inspection at specified
intervals and whenever vehicle is hoisted for any other
purpose.
Tie-Rod / Rack Boot Removal and InstallationS6RW0D6306008
Removal
1) Remove steering gear case assembly referring to
“Steering Gear Case Assembly Removal and
Installation”.
2) Remove member bracket from steering gear case
assembly.
3) For ease of adjustment after installation, make
marking (1) of tie-rod end lock nut position of tie-rod
thread.
4) Loosen tie-rod end lock nut and remove tie-rod end.
5) Remove boot band (2) and clip (1).
6) Remove boot from tie-rod.I7RW01632009-01
5
4 1, (b)
3
2, (a)
1, (b)5
I5RW0A630020-01
I2RH01630012-01
I4RS0A630044-01
IYSQ01630034-01