2003 DAEWOO MATIZ power steering fluid

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.

6B –8 POWER STEERING PUMP
DAEWOO M-150 BL2
SPECIFICATIONS
GENERAL SPECIFICATIONS

Application

Description
Lubricant

Power Steering Fluid DEXRON-II, DEXRON-III
Capacity

1.0 Liter (1.056 qt)
Type

Vane
FASTENER TIGHTENING SPECIFICATIONS
Application Nm Lb-Ft Lb-In
Power Steering Pump Bolt 20 – 24 15 – 18 –
Power Steering Pump Front Bracket Bolt 20 – 24 15 – 18 –
Power Steering Pump Front Bracket Adjusting Bolt 18 – 22 13 – 16 –
Power Steering Pump Rear Bracket Upper Bolt 35 – 45 26 – 33 –
Power Steering Pump Rear Bracket Lower Bolt 20 – 24 15 – 18 –
Power Steering Pump Rear Bracket Adjusting Bolt20 – 2415 – 18–
Power Steering Pump Pulley Nut55 – 6941– 51–
Power Steering Oil Pressure Line Fitting21 – 3516 – 26–

6C – 2 POWER STEERING GEAR
DAEWOO M-150 BL2
DESCRIPTION AND OPERATION
POWER RACK AND PINION
The power rack and pinion steering system has a rotary
control valve which directs the hydraulic fluid coming
from the hydraulic pump to one side or the other side of
the rack piston. The integral rack piston is attached to
the rack. The rack piston converts hydraulic pressure to
a linear force which moves the rack left or right. The
force is then transmitted through the tie rods and the tierod ends to the steering knuckles, which turn the
wheels.
If hydraulic assist is not available, manual control is
maintained. However, under these conditions, more
steering effort is required. The movement of the steering
wheel is transferred to the pinion. The movement of the
pinion is then transferred through the pinion teeth, which
meshs with the teeth on the rack, causing the rack to
move.

POWER STEERING GEAR 6C–3
DAEWOO M-150 BL2
DIAGNOSTIC INFORMATION AND PROCEDURES
POWER RACK AND PINION STERING GEAR
ConditionProbable CauseCorrection
Hissing Noise
Loose steering coupling joints.
Tighten the steering coupling
joints.

Improperly contacted the power
steering hose with other
components.
Fit the power steerng hose into
the hose clips correctly.
Rattling Noise in Steering Gear
Improperly contacted the power
steering line with the body.
Fix the steering line correctly.

Insufficient lubricant.
Lubricate the steering gear.

Loose steering gear mounting.
Tighten the steering gear
mounting bracket bolts.

Improperly installed tie rod ends.
Tighten the tie rod joints and
replace the tie rod end as needed.
Poor Return of Steering Wheel
to Center
Improperly contacted the steering
wheel with the turn signal housing.
Adjust the turn signal housing.

Improper binding or looseness of
steering coupling.
Replace the intermediate shaft.

Stuck and improperly aligned
power steering pump flow control
valve.
Replace the power steering pump.

Improper binding or looseness of
tie rods and ball joints.
Tighten the tie rods and the ball
joints. Replace the tie rods and
the ball joints as needed.

Poor adjustments of the steering
gear.
Perform a straight-ahead check.
Momentary Increase in Effect
When Turning the Wheel
Internal leaks of the power
steering pump.
Replace the power steering pump.
Quickly
The damage or restricted flow of
the hoses.
Replace the power steering hoses
and pipes.

Insufficient power steering fluid.
Fill the power steering fluid
reservoir.

Stuck and improperly operated
power steering pump flow control
valve.
Replace the power steering pump.
Steering Surges or Jerks When
Turning with Engine Running
Insufficient pressure of the power
steering pump.
Replace the power steering pump.

Stuck and improperly operated
power steering pump flow control
valve.
Replace the power steering pump.

The slippage of the pump drive
belt.
Tighten the pump drive belt.

Contaminated air in the power
steering system.
Bleed the power steering system.

6C –6 POWER STEERING GEAR
DAEWOO M-150 BL2
REPAIR INSTRUCTIONS
ON–VEHICLE SERVICE
RACK AND PINION ASSEMBLY
(Left–Hand Drive Shown, Right–Hand
Drive Similar)
Removal Procedure
1. Remove the intermediate shaft lower pinch bolt. Re-
fer to Section 6E, Steering Wheel and Column.
2. Remove the wheel. Refer to Section 2E, Tires and
Wheels.
3. Remove the tie rod ends. Refer to Section 6D, Manu-
al Steering Gear.
4. Remove the front exhaust pipe nuts. Refer to Section
1G, Engine Exhaust.
D105C534
5. Remove the rack and pinion assembly.

Disconnect the return line pipe from the steering
gear (1).

Disconnect the pressure inlet line pipe from the
steering gear (2).

Plug the opening in the power steering pipe line to
prevent fluid loss and contamination.
D105C535

Remove the power steering gear retaining bracket
tighten bolts (3).

Remove the power steering gear retaining bracket
(4).
Important: After moving the gear toward the passenger
side and pulling the gear of the driver side into the un-
derbody hole, remove the steering gear.

POWER STEERING GEAR 6C–7
DAEWOO M-150 BL2
D105C536
6. Remove the packing (5).
D15C537A
Installation Procedure
1. Install in the reverse order of removal.
2. Install the power steering gear bracket with the bolt.
Tighten
Tighten the bracket bolts to 50–55 Nm (36–41 lb-ft).
D15C512A
21–35 Nm21–35 Nm3. Connect the steering pipe. Refer to Section 6A, Pow-
er Steering System.
Tighten
Tighten the power steering pressure line fitting (1) to
21–35 Nm (16–25 lb-ft) (1).
Tighten the return line fitting to 21–35 Nm (16–25 lb-
ft) (2).
Important: When adding fluid or making a complete
fluid change, always use DEXRON II or III power
steering fluid. Failure to use the proper fluid will cause
hose and seal change and fluid leaks.
4. Fill the fluid reservoir with power steering fluid.
5. Inspect for leaks. If there are leaks, correct the cause
of the leaks and bleed the system. Refer to Section
6A, Power Steering System.
POWER STEERING GEAR RACK
AND PINION BOOT
Refer to Section 6D, Manual Steering Gear.

POWER STEERING GEAR 6C–13
DAEWOO M-150 BL2
SPECIFICATIONS
GENERAL SPECIFICATIONS
ApplicationDescription
Power Steering FluidPower Steering Fluid DEXRON-II or DEXRON-III
Capacity1.0 L (1.056 qt)
TypeRack and Pinion
Overall Gear Ratio15.7 : 1
Power Steering Angle144, 155Inside39.5± 2
TireOutside33.5± 2
175 TireInside34.9± 2
Outside30.5± 2
GreaseRackPOLYUREAS
Ball JointSYNTHETICS OILS & LI SOAPS
FASTENER TIGHTENING SPECIFICATIONS
ApplicationNmLb-FtLb-In
Power Steering Gear Bracket Bolt50–5536–41–
Power Steering Gear Pinion Nut40–5030–36–
Power Steering Gear Pinion Dust Cover45–5533–41–
Power Steering Gear Pressure Line Fitting25–3518–25–
Power Steering Oil Pressure Pipe Fitting (Gear Side)21–3516–25–
Power Steering Gear Ajuster PlugRefer to “DIAGNOSIS” in this section.