YH4
GRAND
VITARA
GENERAL INFORMATION 0A-21
A
ABS : Anti-lock Brake System
ATDC : After Top Dead Center
API : American Petroleum Institute
ATF : Automatic Transmission Fluid
ALR : Automatic Locking Retractor
AC : Alternating Current
A / T : Automatic Transmission
A / C : Air Conditioning
ABDC : After Bottom Dead Center
A / F : Air Fuel Mixture Ratio
A-ELR : Automatic-Emergency
Locking Retractor
B
B+ : Battery Positive Voltage
BTDC : Before Top Dead Center
BBDC : Before Bottom Dead Center
C
CKT : Circuit
CMP Sensor : Camshaft Position Sensor
(Crank Angle Sensor, CAS)
CO : Carbon Monoxide
CPP Switch : Clutch Pedal Position Switch
(Clutch Switch, Clutch Start
Switch)
CPU : Central Processing Unit
CRS : Child Restraint System
D
DC : Direct Current
DLC : Data Link Connector
(Assembly Line Diag. Link,
ALDL, Serial Data Link, SDL)
DOHC : Double Over Head Camshaft
DOJ : Double Offset Joint
DRL : Daytime Running Light
DTC : Diagnostic Trouble Code
(Diagnostic Code)
E
EBCM : Electronic Brake Control
Module, ABS Control
Module
EBD : Electric Brake force Distribution
ECM : Engine Control Module
ECT Sensor : Engine Coolant Temperature
Sensor (Water Temp.
Sensor, WTS)
EGR : Exhaust Gas Recirculation
EGRT Sensor : EGR Temperature Sensor
(Recirculated Exhaust Gas
Temp. Sensor, REGTS)
EFE Heater : Early Fuel Evaporation
Heater (Positive Temperature
Coefficient, PTC Heater)
ELR : Emergency Locking Retractor
EPS : Electronic Power Steering
EVAP : Evaporative Emission
EVAP Canister : Evaporative Emission
Canister (Charcoal Canister)
F
4WD : 4 Wheel Drive
G
GEN : Generator
GND : Ground
H
HC : Hydrocarbons
HO2S : Heated Oxygen Sensor
I
IAC Valve : Idle Air Control Valve (Idle
Speed Control Solenoid
Valve, ISC Solenoid Valve)
IAT Sensor : Intake Air Temperature
Sensor (Air temperature
Sensor, ATS)
ICM : Immobilizer Control Module
IG : Ignition
ISC Actuator : Idle Speed Control Actuator
(Motor)
ABBREVIATIONS MAY BE USED IN THIS MANUAL
YH4
GRAND
VITARA
0B-12 MAINTENANCE AND LUBRICATION
IGNITION SYSTEM
ITEM 2-1
Spark Plugs Replacement
Replace spark plugs with new ones referring to Section 6F1 or 6F2.
FUEL SYSTEM
ITEM 3-1
Air Cleaner Filter
Inspection
1) Remove air cleaner case clamps.
2) Take cleaner filter out of air cleaner case.
3) Check air cleaner filter for dirt. Replace excessively dirty filter.
4) Blow off dust by compressed air from air outlet side of filter.
5) Install air cleaner filter into case.
6) Install air cleaner case cap and clamp it securely.
Replacement
Replace air cleaner filter with new one according to above steps 1),
2) and 5), 6).
ITEM 3-2
Fuel Lines and Connections Inspection
1) Visually inspect fuel lines and connections for evidence of fuel
leakage, hose cracking and damage. Make sure all clamps are
secure.
Repair leaky joints, if any.
Replace hoses that are suspected of being cracked.
YH4
GRAND
VITARA
0B-18 MAINTENANCE AND LUBRICATION
ITEM 6-8
Suspension System Inspection
Check suspension bolts and nuts for tightness and retighten them
as necessary.
Repair or replace defective parts, if any.
NOTE:
For details of check points, refer to tables of Tightening Torque
Specification in Section 3D and 3E.
Front
1) Check stabilizer bar for damage or deformation.
2) Check bushing for damage, wear or deterioration.
3) Inspect strut for damage, deformation, oil leakage and opera-
tion. If strut is found faulty, replace it as an assembly unit, be-
cause it can not be disassembled.
Refer to strut check Section 3D for operation check.
4) Inspect strut boot for damage or crack.
5) Inspect for cracks or deformation in spring seat.
6) Inspect for deterioration of bump stopper.
7) Inspect strut mount for wear, cracks or deformation.
8) Check ball joint stud dust seal (boot) for leaks, detachment,
tear or other damage. Check suspension arm bushing for dam-
age, wear or deterioration.
Rear
9) Check shock absorber for damage, deformation, oil leakage
and operation.
10) Check bushings for wear and damage.
YH4
GRAND
VITARA
MAINTENANCE AND LUBRICATION 0B-19
11) Check coil spring, upper rod, lower rod and lateral rod for de-
formation and damage.
12) Check upper rod, lower rod and lateral rod bushings and bump
stopper for wear, damage and deterioration.
13) Check other suspension parts for damage, loose or missing
parts; also for parts showing signs of wear or lack of lubrication.
Replace any parts found defective in steps 1) to 13).
ITEM 6-9
Propeller Shafts and Drive Shafts Inspection
1) Check universal joint and spline of propeller shaft for rattle. If
rattle is found, replace defective part with a new one.
2) Check propeller shaft (front & rear) flange yoke bolts for tight-
ness, and retighten them as necessary.
Refer to Section 4B for tightening torque.
3) Check drive axle boots (wheel side and differential side) for
leaks, detachment, tear or other damage.
Replace boot as necessary.
YH4
GRAND
VITARA
The figure shows right-hand steering vehicle
The figure shows right-hand steering vehicle
0B-22 MAINTENANCE AND LUBRICATION
ITEM 6-14
Steering System Inspection
1) Check steering wheel for play and rattle, holding vehicle in
straight forward condition on the ground.
Steering wheel play ªaº: 0 ± 30 mm (0 ± 1.2 in.)
2) Check universal joints of steering shaft for rattle and damage. If
rattle or damage is found, replace defective part with a new one.
3) Check steering linkage for looseness and damage. Repair or re-
place defective part, if any.
4) Check bolts and nuts for tightness and retighten them as neces-
sary. Repair or replace defective parts, if any.
Refer to table of Tightening Torque Specification in Section 3B
(or 3B1) and 3C (or 3C1) for particular check points.
5) Check boots of steering linkage for damage (leaks, detachment,
tear, dent, etc.). If damage is found, replace it with new one.
If any dent is found on steering rack 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.
6) Check wheel alignment.
NOTE:
For details of wheel alignment, refer to Wheel Alignment in
Section 3A.
ITEM 6-15
Power Steering (P / S) System Inspection (if equipped)
1) Visually check power steering system for fluid leakage and hose
for damage and deterioration.
Repair or replace defective parts, if any.
2) With engine stopped, check fluid level indicated on fluid tank,
which should be between MAX and MIN marks. If it is lower than
MIN, fill fluid up to MAX mark.
NOTE:
Be sure to use an equivalent of DEXRON
-II or DEX-
RON
-III for P / S fluid.
Fluid level should be checked when fluid is cool.
YH4
GRAND
VITARA
3-2 STEERING, SUSPENSION, WHEELS AND TIRES
ConditionPossible CauseCorrection
Abnormal or
Excessive Tire WearSagging 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 TrampBlister or bump on tire.
Improper shock absorber action.Replace tire.
Replace shock absorber.
Shimmy, Shake or
VibrationTire 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 SteeringBind 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
SteeringWheel 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 ReturnabilityBind 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 EndWorn, 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 StabilityMismatched 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
BrakingWorn 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 SoftFaulty shock absorber or struts.Replace shock absorber or strut.
Suspension BottomsOverloaded.
Faulty shocks or struts.
Incorrect broken or sagging springs.Check loading.
Replace shock absorber or strut.
Replace spring.