control arm SUZUKI GRAND VITARA 2003 2.G Service Workshop Manual

YH4
GRAND
VITARA
L
LH : Left Hand
LSPV : Load Sensing Proportioning
Valve
M
MAF Sensor : Mass Air Flow Sensor
(Air Flow Sensor, AFS, Air
Flow Meter, AFM)
MAP Sensor : Manifold Absolute Pressure
Sensor (Pressure Sensor, PS)
Max : Maximum
MFI : Multiport Fuel Injection
(Multipoint Fuel Injection)
Min : Minimum
MIL : Malfunction Indicator Lamp
(ªCHECK ENGINEº Light)
M / T : Manual Transmission
N
NOx : Nitrogen Oxides
O
OBD : On-Board Diagnostic System
(Self-Diagnosis Function)
O / D : Overdrive
OHC : Over Head Camshaft
P
PNP : Park / Neutral Position
P / S : Power Steering
PSP Switch : Power Steering Pressure
Switch (P / S Pressure Switch)
PCM : Powertrain Control Module
PCV : Positive Crankcase Ventilation
R
RH : Right Hand
S
SAE : Society of Automotive
Engineers
SDM : Sensing and Diagnostic
Module (Air bag controller,
Air bag control module)
SFI : Sequential Multiport Fuel
Injection
SOHC : Single Over Head Camshaft
T
TBI : Throttle Body Fuel Injection
(Single-Point Fuel Injection,
SPI)
TCC : Torque Converter Clutch
TCM : Transmission Control Module
(A / T Controller, A / T Control
Module)
TP Sensor : Throttle Position Sensor
TVV : Thermal Vacuum Valve
(Thermal Vacuum Switching
Valve, TVSV, Bimetal Vacuum
Switching Valve, BVSV)
TWC : Three Way Catalytic
Converter (Three Way
Catalyst)
2WD : 2 Wheel Drive
V
VIN : Vehicle Identification
Number
VSS : Vehicle Speed Sensor
W
WU-OC : Warm Up Oxidation
Catalytic Converter
WU-TWC : Warm Up Three Way
Catalytic Converter
0A-22 GENERAL INFORMATION

YH4
GRAND
VITARA
For CAMI production vehicle
For IWATA production vehicle
1B-12 AIR CONDITIONING (OPTIONAL)
PERFORMANCE DIAGNOSIS
1) Confirm that vehicle and environmental conditions are as fol-
lows.

Vehicle is not exposed to direct sun.

Ambient temperature is within 15C ± 35C (59F ± 95F).
2) Make sure that high pressure valve (1) and low pressure valve
(2) of manifold gauge are firmly closed.
3) Connect high pressure charging hose (3) to high pressure ser-
vice valve (5) on vehicle, and connect low pressure charging
hose (4) to low pressure service valve (6) on vehicle.
4) Bleed the air in charging hoses (3), (4) by loosening their respec-
tive nuts on manifold gauge, utilizing the refrigerant pressure.
When a hiss is heard, immediately tighten nut.
CAUTION:
Do not interchange high and low pressure charging
hoses by mistake.
5) Warm up engine to normal operating temperature (engine cool-
ant temperature at 80 ± 90C (176 ± 194F)) and keep it at spe-
cified idle speed. (Radiator cooling fan should not be working
when checking pressure and temperature.)
6) Turn A / C switch ON, and set blower switch at ªHIº (4th position),
temperature control knob at ªCOOLº, air outlet control knob at
ªFACEº, fresh / circulation control knob at ªCIRCULATIONº.
(Confirm that A / C compressor and condenser fan are working.)
7) Keep all windows, doors and engine food open.
Ambient temperature
15 ± 35C (59F ± 95F)
Engine rpmKeep to 1,500 rpm.
Blower motor switchMax. (4th position)
Temperature controlMax. cool
Air outlet controlFace
Vehicle doorsAll open
Air inlet door positionRecirculation
8) With about 20 mm (0.8 in.) of dry bulb thermometer (1) inserted
into center duct air outlet and another one set near evaporator
air inlet, read temperature indicated on each thermometer.

YH4
GRAND
VITARA
3-2 STEERING, SUSPENSION, WHEELS AND TIRES
ConditionPossible CauseCorrection
Abnormal or
Excessive Tire Wear
Sagging or broken springs.

Tire out of balance.

Disturbed front end alignment.

Faulty shock absorber.

Hard driving.

Overloaded vehicle.

Tires not rotating.

Worn or loose road wheel bearings.

Wobbly wheel or tires.

Tires not adequately inflated.Replace spring.
Adjust balance or replace tire.
Check front end alignment.
Replace shock absorber.
Replace tire.
Replace tire.
Replace or rotate tire.
Replace wheel bearing.
Replace wheel or tire.
Adjust the pressure.
Wheel Tramp
Blister or bump on tire.

Improper shock absorber action.Replace tire.
Replace shock absorber.
Shimmy, Shake or
Vibration
Tire or wheel out of balance.

Loose wheel bearings.

Worn tie rod ends.

Worn lower ball joints.

Excessive wheel runout.

Blister or bump on tire.

Excessively loaded radial runout of
tire / wheel assembly.

Disturbed front end alignment.

Loose or worn tie-rod end.

Loose steering gear case bolts.Balance wheels or replace tire and /
or wheel.
Replace wheel bearing.
Replace tie rod end.
Replace front suspension control
arm.
Repair or replace wheel and / or tire.
Replace tire.
Replace tire or wheel.
Check front end alignment.
Tighten or replace tie-rod end.
Tighten case bolts.
Hard Steering
Bind in tie rod end ball studs or
lower ball joints.

Disturbed front end alignment.

Rack and pinion not properly adjusted.
(if equipped with manual steering gear
case)

Tire not adequately inflated.

Bind in steering column.

Low fluid level, loose drive belt or
malfunction of power steering system.
(if equipped with P / S)Replace tie rod end or front
suspension control arm.
Check front end alignment.
Check and adjust steering gear box.
Inflate tires to proper pressure.
Repair or replace.
Check and correct.

YH4
GRAND
VITARA
STEERING, SUSPENSION, WHEELS AND TIRES 3-3
ConditionPossible CauseCorrection
Too Much Play in
Steering
Wheel bearings worn.

Loose steering gear case bolts.

Rack and pinion not properly adjusted.
(if equipped with manual steering gear
case)

Worn steering shaft joints.

Worn tie rod ends or tie rod
inside ball joints.

Worn lower ball joints.Replace wheel bearing.
Tighten.
Check and adjust rack and pinion
torque.
Replace joint.
Replace tie rod end or steering
gear case.
Replace front suspension control
arm.
Poor Returnability
Bind in tie rod end ball studs.

Bind in ball joints.

Bind in steering column.

Poorly lubricated rack and pinion.
(if equipped with manual steering gear
case)

Disturbed front end alignment.

Rack and pinion not properly adjusted.
(if equipped with manual steering gear
case)

Tires not adequately inflated.Replace tie rod end.
Replace ball joint.
Repair or replace.
Check, repair or lubricate rack and
pinion.
Check and adjust front end
alignment.
Check and adjust rack and pinion
torque.
Adjust pressure.
Steering Noise
(Rattle or Chuckle)
Loose bolts and nuts.

Broken or otherwise damaged wheel
bearings.

Worn or sticky tie rod ends.

Rack and pinion not properly adjusted.
(if equipped with manual steering gear
case)Retighten.
Replace.
Replace.
Check and adjust rack and pinion
torque.
Abnormal Noise,
Front End
Worn, sticky or loose tie rod
ends, lower ball joints, tie rod
inside ball joints or drive shaft
joints.

Damaged shock absorbers, struts
or mountings.

Worn control arm bushings.

Loose stabilizer bar.

Loose wheel nuts.

Loose suspension bolts or nuts.

Broken or otherwise damaged
wheel bearings.

Broken suspension springs.

Poorly lubricated or worn strut
bearings.Replace tie rod end, control arm,
steering gear case or drive shaft
joint.
Replace or repair.
Replace.
Tighten bolts or replace bushes.
Tighten wheel nuts.
Tighten suspension bolts or nuts.
Replace wheel bearing.
Replace spring.
Lubricate or replace strut bearing.

YH4
GRAND
VITARA
3-4 STEERING, SUSPENSION, WHEELS AND TIRES
ConditionPossible CauseCorrection
Wander or Poor
Steering Stability
Mismatched or uneven tires.

Loose ball joints and tie rod
ends.

Faulty shock absorbers / struts or
mounting.

Loose stabilizer bar.

Broken or sagging springs.

Rack and pinion not properly adjusted.
(if equipped with manual steering
gear case)

Disturbed front end alignment.Replace tire or inflate tires to
proper pressure.
Replace suspension control arm or
tie rod end.
Replace absorber / strut or repair
mounting.
Tighten or replace stabilizer bar or
bushes.
Replace spring.
Check or adjust rack and pinion
torque.
Check and adjust front end alignment.
Erratic Steering when
Braking
Worn wheel bearings.

Broken or sagging springs.

Leaking wheel cylinder or caliper.

Warped discs.

Badly worn brake linings.

Drum is out of round in some brakes.

Wheel tires are inflated unequally.

Defective wheel cylinders.

Disturbed front end alignment.Replace wheel bearing.
Replace spring.
Repair or replace wheel cylinder or
caliper.
Replace brake disc.
Replace brake shoe lining.
Replace brake drum.
Inflate tires to proper pressure.
Replace or repair wheel cylinder.
Check front end alignment.
Low or Uneven Trim
Height
Right-to-left trim height
(H) difference should be
within 15 mm (0.6 in.)
with curb weight.
*Same with rear side.
Broken or sagging springs.

Overloaded.

Incorrect springs.Replace spring.
Check loading.
Replace spring.
Ride Too Soft
Faulty shock absorber or struts.Replace shock absorber or strut.
Suspension Bottoms
Overloaded.

Faulty shocks or struts.

Incorrect broken or sagging springs.Check loading.
Replace shock absorber or strut.
Replace spring.

YH4
GRAND
VITARA
STEERING, SUSPENSION, WHEELS AND TIRES 3-5
ConditionPossible CauseCorrection
Body Leans or Sways
in Corners
Loose stabilizer bar.

Faulty shock absorbers, struts
or mounting.

Broken or sagging springs.

Overloaded.Tighten stabilizer bar bolts or
replace bushes.
Replace shock absorber, strut or
tighten mounting.
Replace spring.
Check loading.
Cupped Tires
Front struts defective.

Worn wheel bearings.

Excessive tire or wheel run-out.

Worn ball joints.

Tire out of balance.Replace strut.
Replace wheel bearing.
Replace tire or wheel disc.
Replace front suspension control
arm.
Adjust tire balance.

YH4
GRAND
VITARA
3A-2 FRONT END ALIGNMENT
CAMBER
Camber is the tilting of the front wheels from the vertical, as viewed from the front of the vehicle. When the wheels
tilt outward at the top, the camber is positive. When the wheels tilt inward at the top, the camber is negative. The
amount of tilt is measured in degrees.
PRELIMINARY CHECKS PRIOR TO ADJUSTING FRONT ALIGNMENT
Steering and vibration complaints are not always the result of improper alignment. An additional item to be checked
is the possibility of tire lead due to worn or improperly manufactured tires. ªLeadº is the deviation of the vehicle from
a straight path on a level road without hand pressure on the steering wheel.
Section 3 of this manual contains a procedure for determining the presence of a tire lead problem.
Before making any adjustment affecting toe setting, the following checks and inspections should be made to en-
sure correctness of alignment readings and alignment adjustments:
1) Check all tires for proper inflation pressures and approximately the same tread wear.
2) Check for loose ball joints. Check tie rod ends; if excessive looseness is noted, it must be corrected before ad-
justing.
3) Check for run-out of wheels and tires.
4) Check vehicle trim heights; if out of limits and a correction is to be made, it must be made before adjusting toe.
5) Check for loose control arms.
6) Check for loose or missing stabilizer bar attachments.
7) Consideration must be given to excess loads, such as tool boxes. If this excess load is normally carried in ve-
hicle, it should remain in vehicle during alignment checks.
8) Consider condition of equipment being used to check alignment and follow manufacturer's instructions.
9) Regardless of equipment used to check alignment, vehicle must be on a level surface both fore and aft and
transversely.
TOE ADJUSTMENT
Toe is adjusted by changing tie rod length. Loosen right and left tie
rod end lock nuts first and then rotate right and left tie rods by the
same amount to align toe-in to specification.
In this adjustment, right and left tie rods should become equal in
length.
After adjustment, tighten lock nuts to specified torque.
Tightening Torque
(a): 65 N
.m (6.5 kg-m, 47.0 lb-ft)
CAMBER AND CASTER ADJUSTMENT
Should camber or caster be found out of specifications upon in-
spection, locate its cause first. If it is in damaged, loose, bent,
dented or worn suspension parts, they should be replaced. If it is
in body, repair it so as to attain specifications.
To prevent possible incorrect reading of camber or caster, vehicle
front end must be moved up and down a few times before inspec-
tion.

YH4
GRAND
VITARA
3D
FRONT SUSPENSION 3D-1
GENERAL DESCRIPTION3D- 2 . . . . . . . . . . . . . .
DIAGNOSIS3D- 3 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Diagnosis Table 3D- 3. . . . . . . . . . . . . . . . . . . . . .
Stabilizer Bar and Bushing Check 3D- 3. . . . . .
Strut Damper and / or Coil Spring Check 3D- 3. .
Suspension Arm / Knuckle Check 3D- 3. . . . . . . .
Suspension Control Arm Joint Check 3D- 4. . . .
Suspension Control Arm Bushing Check 3D- 4.
Wheel Disc, Nut & Bearing Check 3D- 4. . . . . .
ON-VEHICLE SERVICE3D- 5 . . . . . . . . . . . . . . . . Stabilizer Bar / Bushings 3D- 5. . . . . . . . . . . . . . .
Strut Damper 3D- 6. . . . . . . . . . . . . . . . . . . . . . . .
Coil Spring 3D- 8. . . . . . . . . . . . . . . . . . . . . . . . . .
Bump Stopper / Spring Rubber Seat 3D-11. . . . .
Wheel Hub (Included Wheel Bearing) 3D-12. . .
Knuckle / Wheel Spindle 3D-17. . . . . . . . . . . . . . . .
Suspension Control Arm / Bushings 3D-21. . . . . .
TIGHTENING TORQUE
SPECIFICATIONS3D-23 . . . . . . . . . . . . . . . . . . . .
REQUIRED SERVICE MATERIALS3D-24 . . . . . .
SPECIAL TOOLS3D-25 . . . . . . . . . . . . . . . . . . . . . .
SECTION 3D
FRONT SUSPENSION
CAUTION:

All front suspension fasteners are an important attaching part in that it could affect the performance
of vital parts and systems, and / or could result in major repair expense. They must be replaced with
one of the same part number or with an equivalent part if replacement becomes necessary. Do not
use a replacement part of lesser quality or substitute design. Torque values must be used as specified
during reassembly to assure proper retention of this part.

Never attempt to heat, quench or straighten any front suspension part. Replace it with a new part or
damage to the part may result.
CONTENTS

YH4
GRAND
VITARA
1. Body
2. Strut assembly
3. Steering knuckle
4. Suspension control arm
(Lower arm)
5. Ball stud
6. Wheel bearing
7. Axle shaft drive flange
8. Wheel
2WD
4WD
3D-2 FRONT SUSPENSION
GENERAL DESCRIPTION
The front suspension is the strut type independent suspension. The upper end of a strut is anchored to the body
by a strut support. The strut and strut support are isolated by a rubber mount.
The lower end of the strut is connected to the upper end of a steering knuckle and lower end of knuckle is attached
to the stud of a ball joint which is incorporated in a unit with a suspension control arm. And this steering knuckle
is connected to the tie rod end.
Thus, movement of the steering wheel is transmitted to the tie rod end and then to the knuckle, eventually causing
the wheel-and-tire to move.

YH4
GRAND
VITARA
3D-4 FRONT SUSPENSION
SUSPENSION CONTROL ARM JOINT CHECK
1) Check for smoothness of rotation.
2) Inspect ball stud for damage.
3) Inspect dust cover for damage.
Replace any parts found defective in steps 1) ± 3).
SUSPENSION CONTROL ARM BUSHING
CHECK
Inspect for damage, wear or deterioration.
WHEEL DISC, NUT & BEARING CHECK
1) Inspect each wheel disc for dents, distortion and cracks.
Disc in badly damaged condition must be replaced.
2) Check wheel nuts for tightness and retighten them to specifica-
tion as necessary.
Tightening Torque
(a): 100 N
.m (10.0 kg-m, 72.5 lb-ft)
3) Check wheel bearing for wear. After retightening lock nut to spe-
cified torque, apply dial gauge to wheel hub center and measure
thrust play.
Thrust play limit: 0.05 mm (0.002 in.)
When measurement exceeds limit, replace bearing.
4) By rotating wheel actually, check wheel bearing for noise and
smooth rotation. If defective, replace bearing.