2003 DAEWOO MATIZ belt

DAEWOO M-150 BL2
SECTION 2A
SUSPENSION DIAGNOSIS
TABLE OF CONTENTS
Diagnostic Information and Procedures 2A-1. . . . .
General Diagnosis 2A-1. . . . . . . . . . . . . . . . . . . . . . . . . Wheel Bearing Diagnosis 2A-6. . . . . . . . . . . . . . . . . . .
DIAGNOSTIC INFORMATION AND PROCEDURES
GENERAL DIAGNOSIS
Problems in the steering, the suspension, the tires, and
the wheels involve several systems. Consider all sys-
tems when you diagnose a complaint. Some problems,
such as abnormal or excessive tire wear and scuffed
tires, may be the result of hard driving. Always road testthe vehicle first. If possible, do this road test with the
customer.
Proceed with the following preliminary checks. Correct
any substandard conditions.
Application Checks Correction
Preliminary Checks
Inspect the tires for improper pressure
and uneven wear.
Inflate the tires to the proper pressure.

Inspect the joint from the steering
column to the intermediate shaft for
loose connections or wear.

Inspect the joint from the intermediate
shaft to the steering gear for loose
connections or wear.
Tighten the coupling flange pinch
bolts.

Replace the intermediate shaft as
needed.

Inspect the front and the rear
suspension, the steering gear, and the
linkage for loose or damaged parts.
Tighten the front and the rear
suspension.

Tighten the steering gear mounting
bracket bolts.

Replace the front and the rear
suspension as needed.

Replace the steering gear as needed.

Replace the coupling flange as
needed.

Inspect for out–of–round tires.
Perform free runout test.

Match–mount the tires.

Inspect for out–of–balance tires, bent
wheels, and worn or loose wheel
bearings.
Balance the wheels.

Replace the wheels.

Replace the wheel bearings.

Check the power steering pump drive
belt tension.
Tighten the power steering pump drive
belt.

Inspect the power steering system.
Also, check the power steering fluid
level.
Repair any leaks.

Perform a power steering gear test.

Add power steering fluid.

SUSPENSION DIAGNOSIS 2A–5
DAEWOO M-150 BL2
Condition Probable Cause Correction
Steering Wheel
Air in the power steering system.
Bleed the power steering system.
Kickback (Power)
A loose steering gear mounting.
Tighten the steering gear mounting
bracket bolts.

Loose connections or wear of the joint
from the steering column to the
intermediate shaft.

Loose connections or wear of the joint
from the intermediate shaft to the
steering gear.
Tighten the coupling pinch bolts.

Replace the intermediate shaft as
needed.

Loose tie rod ends.
Tighten the tie rod ends.

Replace the tie rods as needed.

Loose or worn wheel bearings.
Tighten the drive axle nut.

Replace the wheel bearing as needed.
Steering Wheel Surges
or Jerks (Power)
Low pressure in the power steering
system.
Replace the seals and the hoses as
needed.

A sluggish steering gear valve.
Clean the pinion valve assembly.

Replace the pinion valve assembly as
needed.

A loose power steering pump drive
belt.
Adjust the power steering pump drive
belt.
Cupped Tires
The front–wheel and the rear–wheel
alignment are out–of–align.
Align the front and the rear wheels.

Worn strut dampeners.
Replace the strut dampeners.

Worn or loose wheel bearing.
Tighten the drive axle nut.

Replace the wheel bearings as
needed.

Excessive tire or wheel runout.
Match–mount the tires.

Replace the tires as needed.

Replace the wheels as needed.

A worn ball joints.
Replace the control arm and ball joint
assembly.

The steering gear preload adjustment
is out–of–adjustment.
Perform a rack bearing preload
on–vehicle adjustment.

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.

DAEWOO M-150 BL2
SECTION 6B
POWER STEERING PUMP
TABLE OF CONTENTS
Description and Operation 6B-2. . . . . . . . . . . . . . . . . .
Power Steering Pump 6B-2. . . . . . . . . . . . . . . . . . . . . .
Diagnostic Information and Procedures 6B-3. . . . .
Power Steering Pump 6B-3. . . . . . . . . . . . . . . . . . . . . .
Repair Instructions 6B-4. . . . . . . . . . . . . . . . . . . . . . . . .
On-Vehicle Service 6B-4. . . . . . . . . . . . . . . . . . . . . . . . . .
Pump Drive Belt 6B-4. . . . . . . . . . . . . . . . . . . . . . . . . . .
Pump Drive Pulley 6B-5. . . . . . . . . . . . . . . . . . . . . . . . . Pump Assembly 6B-5. . . . . . . . . . . . . . . . . . . . . . . . . . .
Unit Repair 6B-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Pump 6B-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Specifications 6B-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
General Specifications 6B-8. . . . . . . . . . . . . . . . . . . . .
Fastener Tightening Specifications 6B-8. . . . . . . . . . .
Special Tools and Equipment 6B-9. . . . . . . . . . . . . . .
Special Tools Table 6B-9. . . . . . . . . . . . . . . . . . . . . . . .

6B –4 POWER STEERING PUMP
DAEWOO M-150 BL2
REPAIR INSTRUCTIONS
ON–VEHICLE SERVICE
D105C524
PUMP DRIVE BELT
Removal Procedure
1. Remove the front passenger side headlamp. Refer to
Section 9B, Lighting Systems.
2. Remove the pump drive belt.

Loosen the rear bracket adjusting bolt (1).

Loosen the bolt (2).
D105C525

Loosen the front bracket adjusting bolts (3).

Push the pump forward (4).
18–22 Nm
20–24 Nm
20–24 Nm
D15C526A
Installation Procedure
1. Install the pump drive belt with the bolts.
Tighten

Tighten the front bracket adjusting bolt to 18–22
Nm (13–16 lb-ft) (1).

Tighten the rear bracket adjusting bolt to 20–24
Nm (15–18 lb-ft) (2).

Tighten the power steering pump bolt to 20–24
Nm (15–18 lb-ft) (3).
2. Install the front passenger side headlamp. Refer to
Section 9B, Lighting Systems.

POWER STEERING PUMP 6B–5
DAEWOO M-150 BL2
D105C527
PUMP DRIVE PULLEY
Tools Required
DW310–020 Power Steering Pulley Remove Holder
Removal Procedure
1. Remove the front passenger side headlamp.
Refer to Section 9B, Lighting Systems.
2. Remove the steering pump pulley.

Remove the pump drive belt. Refer to “Pump Drive
Belt” in this section.

Fix the pulley using the power steering pulley re-
move holder DW310–020 (1).

Remove the pump drive pulley nut (2).
55–69 Nm
D15C528A
Installation Procedure
1. Install the pump drive pulley. Install the steering pump
pulley nut.
2. Install the pump drive belt.
3. Tighten the steering pump pulley nut using the power
steering pulley remove holder DW310–020.
Tighten
Tighten the steering pump pulley nuts to 55–69 Nm
(41–51 lb-ft).
4. Install the front passenger side headlamp.
Refer to Section 9B, Lighting Systems.
D105C529
PUMP ASSEMBLY
Removal Procedure
1.Remove the front passenger side headlamp.
Refer to Section 9B, Lighting Systems.
2. Disconnect the pipe line from the pump.

Disconnect the supply line pipe hose (1).

Disconnect the pressure line pipe fitting (2).
D105C530
3. Remove the power steering pump.

Remove the pump drive belt. Refer to “Pump Drive
Belt” in this section.

Disconnect the power steering pressure switch
connector (1). Refer to Section 6A, Power Steering
Systems.

Remove the bolts (2).

6B –6 POWER STEERING PUMP
DAEWOO M-150 BL2
D105C531

Remove the bolt (3).
18–22 Nm
D15C532A
Installation Procedure
1. Install the power steering pump with the bolt.
Tighten
Tighten the bolt to 18–22 Nm (13–16 lb-ft).
2. Connect the power steering pressure switch connec-
tor. Refer to Section 6A, Power Steering System.
3. Install the pump drive belt. Refer to “Pump Drive Belt”
in this section.
20–24 Nm
20–24 Nm 21–35 Nm
D15C533A
4. Install the bolts.
Tighten

Tighten the rear bracket adjusting bolt to 20–24
Nm (15–18 lb-ft) (1).

Tighten the power steering bolt to 20–24 Nm
(15–18 lb-ft) (2).
5. Connect the pressure line pipe to the outlet connec-
tion on the steering pump.
Tighten
Tighten the pressure line pipe fitting to 21–35 Nm
(16–26 lb-ft) (3).
6. Install the front passenger side headlamp.
Refer to Section 9B, Lighting Systems.
Notice: When adding fluid or making a complete fluid
change, always use DEXRON-II or DEXRON-III pow-
er steering fluid. Failure to use the proper fluid will cause
hose and seal damage and fluid leaks.
7. Refill the pump with new fluid and bleed the air from
the system. Refer to Section 6A, Bleeding the Power
Steering System.
8. Inspect for leaks. If leaks are found, correct the cause
of the leak and bleed the system.