TABLE OF CONTENTS
GENERAL INFORMATION ENGINE0A6
General Information0A
General Information and Diagnosis6
0B6A1
Maintenance and Lubrication0B
Engine Mechanical6A1
6B
HEATING AND AIR CONDITIONING
Engine Cooling6B
1A6C
Heater and Ventilation1A
Engine Fuel6C
1B6E1
Air Conditioning1B
Engine and Emission Control System6E1
6F1
STEERING, SUSPENSION, WHEELS
AND TIRESIgnition System6F1
36G
Cranking System6G
3A6H
Steering, Suspension, Wheels and Tires3
Charging System6H
3B6K
Front End Alignment3A
Exhaust System6K
3B1 6B
Manual Rack and Pinion3B TRANSMISSION, CLUTCH AND
DIFFERENTIAL
3C7A
Power Steering System3B1
3D7B
Steering Wheel and Column3C
Manual Transmission7A
3E7C
Front Suspension3D
Automatic Transmission7B
3F7D
Rear Suspension3E
Clutch7C
7F
Wheels and Tires3F
Transfer7D
4A
DRIVE SHAFT AND PROPELLER SHAFT
Differential (Rear)(4WD)7F
4B8
Front Drive Shaft 4A ELECTRICAL SYSTEM
8A
Propeller Shaft4B
Body Electrical System8
58G
BRAKE SYSTEM
Wiring Diagram8A5E
Brakes5
Immobilizer Control System (if equipped)8G
9
Antilock Brake System5E BODY SERVICE 9
RESTRAINT SYSTEM
10
Restraint System10
10B
Air Bag System (if equipped)10B
NOTE:
The screen toned Section 8A is in Wiring Diagram Manual mentioned in FOREWORD of this manual.
0B-16 MAINTENANCE AND LUBRICATION
3) Check steering linkage for looseness and damage. Repair or
replace defective parts, if any.
4) Check boots (1) and (2) of steering linkage and steering gear
case for damage (leak, detachment, tear, etc.). If damage is
found, replace defective boot with new one.
If any dent is found on steering gear case boots, correct it to
original shape by turning steering wheel to the right or left as
far as it stops and holding it for a few seconds.
5) Check universal joints (3) of steering shaft for rattle and
damage. If rattle or damage is found, replace defective part
with a new one.
6) Check that steering wheel can be turned fully to the right and
left. Repair or replace defective parts, if any.
7) If equipped with power steering system, check also, in addi-
tion to above check items, that steering wheel can be turned
fully to the right and left more lightly when engine is running
at idle speed than when it is stopped. Repair, if found faulty.
8) Check wheel alignment referring to Section 3A.
DRIVE SHAFT (AXLE) BOOTS / PROPELLER SHAFTS
(4WD)
DRIVE SHAFT (AXLE) BOOTS INSPECTION
Check drive shaft boots (wheel side and differential side) for
leaks, detachment, tear or other damage.
Replace boot as necessary.
PROPELLER SHAFTS (4WD) INSPECTION
1) Check propeller shaft connecting bolts for looseness. If
looseness is found, tighten to specified torque.
2) Check propeller shaft joints for wear, play and damage.
If any defect is found, replace.
3) Check propeller shaft center support for biting of foreign mat-
ter, crack, abnormal noise and damage. If any defect is
found, replace.
STEERING, SUSPENSION, WHEELS AND TIRES 3-1
6F1
6F2
6G
6H
6K
3
7A1
7B1
7C1
7D
7E
7F
8A
8B
8C
8D
8E
9
10
10A
10B
SECTION 3
STEERING, SUSPENSION, WHEELS AND TIRES
DIAGNOSIS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
FRONT END ALIGNMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Section 3A
MANUAL RACK AND PINION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Section 3B
ELECTRICAL POWER STEERING (P/S) SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Section 3B1
STEERING WHEEL AND COLUMN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Section 3C
FRONT SUSPENSION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Section 3D
REAR SUSPENSION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Section 3E
WHEELS AND TIRES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Section 3F
CONTENTS
DIAGNOSIS ........................................................ 3-2
GENERAL DIAGNOSIS .................................. 3-2
DIAGNOSIS TABLE ........................................ 3-2
TIRE DIAGNOSIS ........................................... 3-5
IRREGULAR AND/OR PREMATURE
WEAR.......................................................... 3-5WEAR INDICATORS .................................. 3-5
RADIAL TIRE WADDLE.............................. 3-6
RADIAL TIRE LEAD.................................... 3-7
VIBRATION DIAGNOSIS................................ 3-7
3-2 STEERING, SUSPENSION, WHEELS AND TIRES
DIAGNOSIS
GENERAL DIAGNOSIS
Since the problems in steering, suspension, wheels and tires involve several systems, they must all be consid-
ered when diagnosing a complaint. To avoid using the wrong symptom, always road test the vehicle first. Pro-
ceed 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 front and rear suspension and 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.
DIAGNOSIS TABLE
Condition Possible Cause Correction
Vehicle Pulls (Leads)
Mismatched or uneven tires Replace tire.
Tires not adequately inflated Adjust tire pressure.
Broken or sagging springs Replace spring.
Radial tire lateral force Replace tire.
Disturbed front end alignment Check and adjust front end align-
ment.
Brake dragging in one road wheel Repair brake.
Loose, bent or broken front or rear suspension
partsTighten or replace suspension
parts.
Abnormal or
Excessive Tire WearSagging or broken spring Replace spring.
Tire out of balance Adjust balance or replace tire.
Disturbed front end alignment Check and adjust front end align-
ment.
Faulty strut (shock absorber) Replace strut.
Hard driving Replace tire.
Overloaded vehicle Replace tire.
Not rotating tire Replace or rotate tire.
Worn or loose wheel bearing Replace wheel bearing.
Wobbly wheel or tire Replace wheel or tire.
Tires not adequately inflated Adjust tire pressure.
Wheel Tramp
Blister or bump on tire Replace tire.
Improper strut (shock absorber) action Replace strut.
Shimmy, Shake or
VibrationTire or wheel out of balance Balance wheels or replace tire and/
or wheel.
Loosen wheel bearings Replace wheel bearing.
Worn tie rod ends Replace tie rod end.
Worn lower ball joints Replace front suspension arm.
Excessive wheel runout Repair or replace wheel and/or tire.
Blister or bump on tire Replace tire.
Excessively loaded radial runout of tire/wheel
assemblyReplace tire or wheel.
Disturbed front end alignment Check and adjust front end align-
ment.
Loose or worn steering linkage Tighten or replace steering linkage.
Loose steering gear case bolts Tighten case bolts.
STEERING, SUSPENSION, WHEELS AND TIRES 3-3
Hard Steering
Tire not adequately inflated Inflate tires to proper pressure.
Malfunction of power steering system Check and correct.
Bind in tie rod end ball studs or lower ball joints Replace tie rod end or front sus-
pension arm.
Disturbed front end alignment Check and adjust front end align-
ment.
Rack and pinion adjustment Check and adjust rack and pinion
torque.
Bind in steering column Repair or replace.
Too Much Play in
SteeringWheel bearings worn Replace.
Loose steering gear case bolts Tighten.
Rack and pinion adjustments Check and adjust rack and pinion
torque.
Worn steering shaft joints Replace joint.
Worn tie rod ends or tie rod inside ball joints Replace tie rod end or tie rod.
Worn lower ball joints Replace front suspension control
arm.
Poor Returnability
Bind in tie rod end ball studs Replace tie rod end.
Bind in ball joints Replace.
Bind in steering column Repair or replace.
Poorly lubricated rack and pinion Check, repair or lubricate rack and
pinion.
Disturbed front end alignment Check and adjust front end align-
ment.
Rack and pinion adjustment Check and adjust rack and pinion
torque.
Tires not adequately inflated Adjust tire pressure.
Rack and Pinion Noise
(Rattle or Chuckle)Loose steering gear case bolts Tighten.
Worn rack bush Replace.
Rack and pinion adjustment Check and adjust rack and pinion
torque.
Abnormal Noise,
Front EndWorn, sticky or loose tie rod ends, lower ball
joints, tie rod inside ball joints or drive shaft
jointsReplace tie rod end, suspension
arm, tie rod or drive shaft joint.
Damaged struts or mountings Repair or replace.
Worn suspension arm bushings Replace.
Loose stabilizer bar Tighten bolts or nuts, replace
bushes.
Loose wheel nuts Tighten wheel nuts.
Loose suspension bolts or nuts Tighten suspension bolts or nuts.
Broken or otherwise damaged wheel bearings Replace.
Broken suspension springs Replace.
Poorly lubricated or worn strut bearings Replace strut bearing. Condition Possible Cause Correction
3-4 STEERING, SUSPENSION, WHEELS AND TIRES
Wander or Poor
Steering StabilityMismatched or uneven tires Replace or inflate tires to proper
pressure.
Loosen ball joints and tie rod ends Replace suspension arm or tie rod
end.
Faulty struts or mountings Replace strut or repair mounting.
Loose stabilizer bar Tighten or replace stabilizer bar or
bush.
Broken or sagging springs Replace spring.
Rack and pinion adjustment Check and adjust rack and pinion
torque.
Disturbed front end alignment Check and adjust front end align-
ment.
Erratic Steering When
BrakingWorn wheel bearings Replace.
Broken or sagging springs Replace coil spring.
Wheel tires are inflated unequally Inflate tires to proper pressure.
Disturbed front end alignment Check and adjust front end align-
ment.
Brakes not working in unison Check and adjustment brake sys-
tem.
Leaking wheel cylinder or caliper Repair or replace wheel cylinder or
caliper.
Warped discs Replace brake disc.
Badly worn brake linings Replace brake shoe lining.
Drum is out of round in some brakes Replace brake drum.
Defective wheel cylinders Replace or repair wheel cylinder.
Low or Uneven Trim
Height
NOTE:
See NOTE *1.Broken or sagging springs Replace.
Over loaded Check loading.
Incorrect springs Replace.
Ride Too Soft
Faulty struts (shock absorber) Replace strut.
Suspension Bottoms
Overloaded Check loading.
Faulty struts (shock absorber) Replace strut.
Incorrect, broken or sagging springs Replace.
Body Leans or Sways
in CornersLoose stabilizer bar Tighten stabilizer bar bolts or nuts,
or replace bushes.
Faulty struts (shock absorbers) or mountings Replace strut or tighten mounting.
Broken or sagging springs Replace.
Overloaded Check loading.
Cupped Tires
Front struts defective Replace.
Worn wheel bearings Replace.
Excessive tire or wheel run-out Replace tire or wheel disc.
Worn ball joints Replace front suspension arm.
Tire out of balance Adjust tire balance. Condition Possible Cause Correction
STEERING, SUSPENSION, WHEELS AND TIRES 3-5
TIRE DIAGNOSIS
IRREGULAR AND/OR PREMATURE WEAR
Irregular and premature wear has many causes. Some of them
are: incorrect inflation pressures, lack of tire rotation, driving hab-
its, improper alignment.
If the following conditions are noted, rotation is necessary:
Front tire wear is different from rear.
Uneven wear exists across the tread of any tire.
Front tire wear is unequal between the right and left.
Rear tire wear is unequal between the right and left.
There is cupping, flat spotting, etc.
A wheel alignment check is necessary if following conditions are
noted:
Front tire wear is unequal between the right and left.
Wear is uneven across the tread of any front tire.
Front tire treads have scuffed appearance with “feather”
edges on one side of tread ribs or blocks.
WEAR INDICATORS
Original equipment tires have built-in tread wear indicators (1) to
show when they need replacement.
These indicators (1) will appear as 12 mm (0.47 in) wide bands
when the tire tread depth becomes 1.6 mm (0.063 in).
When the indicators (1) appear in 3 or more grooves at 6 loca-
tions, tire replacement is recommended.NOTE:
*1: Right-to-left trim height (“H”) difference should be
within 15 mm (0.6 in.) with curb weight. (same with rear
side.)
“H”
[A] : Hard Cornering, under inflation or lack of tire rotation
[B] : Incorrect wheel alignment, tire construction not uniform or wheel heavy acceleration
3-6 STEERING, SUSPENSION, WHEELS AND TIRES
RADIAL TIRE WADDLE
Waddle is side to side movement at the front and/or rear of the
vehicle. It is caused by the steel belt not being straight within the
tire. It is most noticeable at a low speed, 8 to 48 kph (5 to 30
mph).
It is possible to locate the faulty tire by road testing the vehicle. If
it is on the rear, the rear end of the vehicle shakes from side to
side or “waddles”. To the driver in the seat, it feels as though
someone is pushing on the side of vehicle.
If the faulty tire is on the front, waddling is more visual. The front
sheet metal appears to be moving back and forth and the driver
feels as though he is at the pivot point in vehicle.
Waddle can be quickly diagnosed by using Tire Problem Detector
(TPD) and following the equipment manufacture’s recommenda-
tions.
If TPD is not available, an alternative method of substituting
known-good tire/wheel assemblies can be used as follows,
although it takes a longer time.
1) Ride vehicle to determine whether the front or rear waddles.
2) Install tires and wheels that are known to be good (on similar vehicle) in place of those on waddling end of
vehicle. If waddling end cannot be identified, substitute rear ones.
3) Road test again. If improvement is noted, reinstall originals one at a time till waddle causal tire is found. If no
improvement is noted, install known-good tires in place of all four. Then reinstall originals in the same man-
ner as above.
EQUIPMENT MANUFACTURE’S RECOMMENDATIONS
In flate tires to recommended pressure
Road test vehicle on level unrowned road in both directions
Switch front tires side to side and road test again
Lead corrected,
if roughness results, replace tiresLeads in same directionLeads reverses direction
Put tires back in original position
and check alignmentInstall a known-good tire on one front side
Lead remains install a known-good
tire in place of other front tire
Lead remains known-good tires are not goodLead corrected replace tire
Lead corrected replace tire