2003 DAEWOO MATIZ tire pressure

2B–4 WHEEL ALIGNMENT
DAEWOO M-150 BL2
DIAGNOSTIC INFORMATION AND PROCEDURES
TIRE DIAGNOSIS

Condition

Probable cause

Correction
Irregular and Excessive
Tire WearIncorrect inflation pressure.Inflate the tires to the proper
pressure.
Inbalanced wheel.Balance the wheel.
Replace the wheel.
A lack of regular rotation.Rotate the tires.
Incorrect alignment.Align the front and rear wheels.
Premature Tire WearExcessive inflation pressure.Inflate the tires to the proper
pressure.
High speed driving with the low
inflation pressure.Inflate the tires to the proper
pressure.
Uneven BrakingInbalanced inflation pressure.Inflate the tires to the proper
pressure.
Irregular tire wear.Replace the tires.
Noise and Vibration of
The BodyLow inflation pressure.Inflate the tires to the proper
pressure.
Inbalanced wheel.Balance the wheel.
Replace the wheel.
Damaged wheel or tire.Replace the wheel and the tire.
Irregular tire wear.Replace the tire.
Vibration of The SteeringIrregular tire wear.Replace the tire.
WheelInbalanced inflation pressure.Inflate the tires to the proper
pressure.
Damaged tire.Replace the tire.
Bent or damaged wheel.Replace the wheel.

FRONT SUSPENSION 2C–5
DAEWOO M-150 BL2
DIAGNOSTIC INFORMATION AND PROCEDURES
STRUT DAMPENER
A strut dampener is basically a shock absorber. However, strut dampeners are easier to extend and retract by hand
than are shock absorbers. Strut dampeners are used only on the front in most vehicles, including this vehicle. Shock
absorbers are used on the rear wheels.
Condition Probable cause Correction
Struts Seem Weak
Improper tire pressures.
Adjust the tire pressures to the speci-
fications on the tire placard.

Abnormal load conditions.
Consult with the owner to confirm the
owner’s understanding of normal load
conditions.

Improper compression and rebound
effectiveness of the strut dampener.
Quickly push down and then lift up on
the corner of the bumper nearest the
strut dampener being tested.

Compare the compression and re-
bound with those of a similar vehicle
that has an acceptable ride quality.

Replace the strut dampener, if need-
ed.
Struts are Noisy
Loose or damaged mountings.
Tighten the strut dampener.

Replace the strut dampener if need-
ed.

Improper compression and rebound
effectiveness of the strut dampener.
Quickly push down and then lift up on
the corner of the bumper nearest the
strut dampener being tested.

Compare the compression and re-
bound with those of a similar vehicle
that has an acceptable ride quality.

Replace the strut dampener, if need-
ed.
Leaks
A slight trace of fluid.
The strut dampener is OK.

Leaks of the seal cover on the fully
extended strut.
Replace the strut dampener.

Excessive leaks of fluid on the strut
dampener.
Replace the strut dampener.
BALL JOINT AND KNUCKLE
Ball Joint Inspection
1. Raise the front of the vehicle to allow the front sus-
pension to hang free.
2. Grasp the tire at the top and the bottom.
3. Move the top of the tire in an in-and-out motion.
4. Look for any horizontal movement of the knuckle rela-
tive to the control arm.
5. Control arms assembly must be replaced if the follow-
ing conditions exist:

The joint is loose.

The ball seal is cut.

The ball stud is disconnected from the knuckle.
The ball stud is loose at the knuckle.

The ball stud can be twisted in its socket with finger
pressure.Ball Stud Inspection
Make sure to check the tightness of the ball stud in the
knuckle boss during each inspection of the ball joint.
One way to inspect the ball stud for wear is to shake the
wheel and feel for movement of the stud end or the cas-
tellated nut at the knuckle boss.
Another way to inspect the ball stud for wear is to check
the fastener torque at the castellated nut. A loose nut can
indicate a stressed stud or a hole in the knuckle boss.
Worn or damaged ball joints and knuckles must be re-
placed.

DAEWOO M-150 BL2
SECTION 2E
TIRES AND WHEELS
TABLE OF CONTENTS
Description and Operation 2E-2. . . . . . . . . . . . . . . . . .
Tire 2E-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacement Tires 2E-3. . . . . . . . . . . . . . . . . . . . . . . .
All Season Tires 2E-3. . . . . . . . . . . . . . . . . . . . . . . . . . .
Tire Label 2E-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Spare Tire 2E-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Wheels 2E-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inflation of Tires 2E-4. . . . . . . . . . . . . . . . . . . . . . . . . . .
Rotation Tires 2E-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Wheel Balance 2E-4. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Diagnostic Information and Procedures 2E-5. . . . .
Tire Wear 2E-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Irregular or Excessive Tires Wear 2E-6. . . . . . . . . . . . Repair Instructions 2E-7. . . . . . . . . . . . . . . . . . . . . . . . .
On-Vehicle Service 2E-7. . . . . . . . . . . . . . . . . . . . . . . . . .
Wheel 2E-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
On-Vehicle Balancing 2E-8. . . . . . . . . . . . . . . . . . . . . .
Off-Vehicle Balancing 2E-8. . . . . . . . . . . . . . . . . . . . . .
Correcting Non-Uniform Tires 2E-8. . . . . . . . . . . . . . .
Tire and Wheel Match-Mounting 2E-9. . . . . . . . . . . . .
Specifications 2E-10. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tire Size and Pressure Specifications 2E-10. . . . . . .
Inflation Pressure Conversion
Specifications 2E-10. . . . . . . . . . . . . . . . . . . . . . . . . .
Fastener Tightening Specifications 2E-10. . . . . . . . . .

2E – 2 TIRES AND WHEELS
DAEWOO M-150 BL2
DESCRIPTION AND OPERATION
TIRE
Tread
A part (that contacts) road surfaces directly is fixed on
the outside of carcass and breaker. It is a strong rubber
coat made of high anti–abrasion rubber. Its running per-
formance depends on is surface profile.
Breaker
A cord belt between tread and carcass prevents dam-
ages of inner code due to outer shock and vibration.
Carcass
This major part made by pilling code papers of strong
synthetic fiber forms a structure of tire. Since it main-
tains tire pressure and endures applied load and shock
to tire, it should have a high anti–fatigue characteristic.
Bead
A steel wire winding the ending part of carcass code,
coated with rubber film and wrapped with nylon cord pa-
pers. It fixes tire to a rim.
Tube
Tires used in mostly current vehicle are mostly tubeless
tires.
Side Wall
It is provided to improve the comfortable driving by pro-
tecting carcass and cushion movement.
Structure of Tubeless Tube
D16A001A
Nomenclature
D16A002A
175 Width (mm)

60Flatness ratio 60%
(Height/Width) ×100
175/60R13RRadial
77H13Rim diameter (= Tire I.D, Inch)
77Max. load index
HMax. speed symbol

TIRES AND WHEELS 2E–3
DAEWOO M-150 BL2
Hydroplaning
The condition of driving a vehicle fast on the road surface
covered with water can cause tires to fail to rotate with a
good contact on the surface, so results in remaining them
afloat. This is so–called hydroplaning. It causes brake
failure, lower tractive force, and losing the steering per-
formance so it is very vulnerable condition.
D16A005A
Standing Wave
During running the rotating tire repeats deformation and
restoring movement generated in tread. But when the
wheel rotating speed reaches high, the next deformation
applied to tire before restoring last deformation so the
trembling wave appears in the tread portion. The lower
the tire pressure the severe the trembling wave appears.
And during the high speed.
D106A004
REPLACEMENT TIRES
A Tire Performance Criteria (TPC) specification number
is molded in the sidewall near the tire size of all original
equipment tires. This specification number assures that
the tire meets performance standards for traction, en-
durance, dimensions, noise, handling and rolling resist-
ance. Usually a specific TPC number is assigned to
each tire size.Caution: Do not mix different types of tires on the
same vehicle such as radial, bias and bias-belted
tires except in emergencies, because vehicle han-
dling may be seriously affected and may result in
loss of control.
Caution: Do not change 145/70 R13 tires or 155/65
R13 tires for 175/60 R13 tires, because vehicle
hancling may be seriously affected and may result
in loss of control. If you change 145/70 R13 tires or
155/65 R13 tires for 175/60 R13 tires, you have to
change the steering gear assembly.
Use only replacement tires with the same size, load
range, and construction as the original. The use of any
other tire size or construction type may seriously affect
ride, handling, speedometer/odometer calibration, ve-
hicle ground clearance, and tire clearance to the body
and the chassis. This does not apply to the spare tire fur-
nished with the vehicle.
It is recommended that new tires be installed in pairs on
the same axle.
If it is necessary to replace only one tire, pair it with the
tire having the most tread to equalize the braking action.
Although they may appear different in tread design, tires
built by different manufacturers with identical TPC speci-
fications may be used on the same vehicle.
ALL SEASON TIRES
Most vehicles are now equipped with steel-belted all
season radial tires as standard equipment. These tires
qualify as snow tires, with a 37 percent higher average
rating for snow traction than the non-all season radial
tires previously used. Other performance areas, such as
wet traction, rolling resistance, tread life, and air reten-
tion, have also been improved. This was done by im-
provements in both tread design and tread compounds.
These tires are identified by an “M + S” molded in the tire
sidewall following the size number. The suffix “MS” is
also molded in the sidewall after the TPC specification
number.
The optional handling tires used on some vehicles are
not all season tires. These will not have the “MS” mark-
ing after the tire size or the TPC specification number.
TIRE LABEL
The tire label is permanently located on the rear face of
the driver’s door and should be referred to for tire infor-
mation. It lists the maximum vehicle load, the tire size
(including the spare tire), and the cold inflation pressure
(including the spare tire).
SPARE TIRE
This vehicle comes equipped with a full-sized spare tire
and wheel.

2E –4 TIRES AND WHEELS
DAEWOO M-150 BL2
WHEELS
Wheels must be replaced if they are bent, dented, have
excessive lateral or radial runout, leak air through welds,
have elongated bolt holes, or if the wheel bolts won’t
stay tight or are heavily rusted. Wheels with excessive
runout may cause vehicle vibration. Replacement
wheels must be equivalent to the original equipment
wheels in load capacity, diameter, rim width, offset, and
mounting configuration. A wheel of improper size or type
may affect wheel and bearing life, brake cooling,
speedometer/odometer calibration, vehicle ground
clearance, and tire clearance to the body and the chas-
sis.
INFLATION OF TIRES
The pressure recommended for any vehicle line is care-
fully calculated to give a satisfactory ride, handling,
tread life, and load-carrying capacity.
Tire pressure should be checked monthly or before any
extended trip. Check the tires when they are cold, after
the vehicle has sat for 3 hours or more or has been driv-
en less than 1 mile. Set the tire pressure to the specifi-
cations on the tire label located on the rear face of the
driver’s door. Tire inflation pressure is also given under
“Tire Size and Pressure Specifications” in this section.
Valve caps or extensions should be on the valves to
keep dust and water out.
Higher than recommended tire pressure can cause:

Hard ride

Tire bruising or damage

Rapid tread wear at the center of the tire
Lower than recommended pressure can cause:

Tire squeal on turns

Hard steering

Rapid and uneven wear on the edges of the tread

Tire rim bruises and rupture

Tire cord breakage

High tire temperatures
Unequal tire pressures on same axle can cause:

Uneven braking

Steering lead
Reduced handling

Swerve on acceleration

Torque steer
ROTATION TIRES
Front and rear tires perform different jobs and can wear
differently depending on the tires of road driven, driving
habit, etc.
The front tires will wear faster than the rear ones.
To avoid uneven wear of tires and to prolong tire life, in-
spect and rotate the tires every 5,000 km (3,100 miles).
After rotating the tires, adjust the tire inflation pressures
and be sure to check wheel nuts tightness.
D16A304A
WHEEL BALANCE
Balance is the easiest procedure to perform and should
be done first if the vibration occurs at high speeds, or if
the tires or the wheels are replaced.
When proceeding the wheel balancing procedure regard
the belows.
1. Do not use the wheel weight over two at the inboard
and the outboard flanges.
2. The total weight of the wheel weights should not ex-
ceed the 100 grams (3.5 ounces).
3. Blanching the assemblies with factory aluminum
wheels requires the use of special nylon–coated,
clip–on wheel weights.

2E –6 TIRES AND WHEELS
DAEWOO M-150 BL2
IRREGULAR OR EXCESSIVE TIRES WEAR
ConditionProbable CauseCorrection
D16A305A

Low tire inflation pressures.

Improper the tire rotation.
Adjust tire inflation pressures.

Rotate the tires.
D16A305B

Excessive tire inflation pressures.

Improper the tire rotation.
Adjust tire inflation pressures.

Rotate the tires.
D16A305C

Poor toe–in.
Adjust the toe–in.
D16A305D

toe–out.
Adjust the toe–in.
D16A305E

Poor camber or caster.

Faulty suspensions.

Poor wheel balancing.

Improper the tire rotation.
Check the steering knuckle, control
arm, drive axle, and suspensions.
Repair or replace them, as needed.

Adjust the wheel balancing.

Rotate the tires.

2E –10 TIRES AND WHEELS
DAEWOO M-150 BL2
SPECIFICATIONS
TIRE SIZE AND PRESSURE SPECIFICATIONS
Inflation Pressure
FrontRearEngineTiresWheelkPapsikPapsi
0.8 SOHC145/70 R134.5Jx13 (Steel)207 (207)*30 (30)*207 (234)*30 (34)*
155/65 R134.5Jx13 (Alloy)207 (207)*30 (30)*207 (234)*30 (34)*
Important: ( )* : 4 – 5 occupants
INFLATION PRESSURE CONVERSION SPECIFICATIONS

kPa

psi

kPapsikPapsi
140

20

186

27

234

34
145

21

193

28

241

35
152

22

200

29

248

36
159

23

207

30

276

40
166

24

214

31

310

45
172

25

221

32

345

50
179

26

228

33

379

55
FASTENER TIGHTENING SPECIFICATIONS
Application Nm Lb-Ft Lb-In
Wheel Nuts (Aluminum Wheel)90 – 11 066 – 81–
Wheel Nuts (Steel Wheel)90 – 11 066 – 81–