2004 DAEWOO NUBIRA Service Repair Manual

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Page 1913 of 2643

DAEWOO NUBIRA 2004 Service Repair Manual 6B – 4IPOWER STEERING PUMP
DAEWOO V–121 BL4
Installation Procedure
1. Use a wrench to turn the tensioner bolt clockwise,
compressing the tensioner, and releasing the ten-
sion on the serpentine

Page 1914 of 2643

DAEWOO NUBIRA 2004 Service Repair Manual POWER STEERING PUMP 6B – 5
DAEWOO V–121 BL4
3. Position a drain pan to catch the power steering
fluid that will drain from the high–pressure hose af-
ter it is disconnected from the power stee

Page 1915 of 2643

DAEWOO NUBIRA 2004 Service Repair Manual 6B – 6IPOWER STEERING PUMP
DAEWOO V–121 BL4
3. Connect the supply hose to the power steering
pump.
4. Connect the high–pressure hose fitting to the power
steering pump.
Tighten
Tighten the hig

Page 1916 of 2643

DAEWOO NUBIRA 2004 Service Repair Manual POWER STEERING PUMP 6B – 7
DAEWOO V–121 BL4
UNIT REPAIR
PUMP
The unit repair of the power steering pump in this vehicle
is not serviceable.
A faulty pump must be replaced with a new one.

Page 1917 of 2643

DAEWOO NUBIRA 2004 Service Repair Manual 6B – 8IPOWER STEERING PUMP
DAEWOO V–121 BL4
GENERAL DESCRIPTION
AND SYSTEM OPERATION
POWER STEERING PUMP
The power steering pump is a multivaned hydraulic pump.
The serpentine accessory drive belt

Page 1918 of 2643

DAEWOO NUBIRA 2004 Service Repair Manual SECTION : 6C
POWER STEERING GEAR
CAUTION : Disconnect the negative battery cable before removing or installing any electrical unit or when a tool
or equipment could easily come in contact with exposed

SECTION : 6C
POWER STEERING GEAR
CAUTION : Disconnect the negative battery cable before removing or installing any electrical unit or when a tool
or equipment could easily come in contact with exposed electrical terminals. Disconnecting this cable will help
prevent personal injury and damage to the vehicle. The ignition must also be in LOCK unless otherwise noted.
TABLE OF CONTENTS
SPECIFICATIONS6C–1 . . . . . . . . . . . . . . . . . . . . . . . . . .
General Specifications 6C–1. . . . . . . . . . . . . . . . . . . . .
Fastener Tightening Specifications 6C–2. . . . . . . . . . .
SPECIAL TOOLS6C–2 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Special Tools Table 6C–2. . . . . . . . . . . . . . . . . . . . . . . .
DIAGNOSIS6C–3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Rack and Pinion Steering Gear 6C–3. . . . . . . .
Power Rack and Pinion Steering Gear Bench
Testing 6C–5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Speed Sensitive Power Steering System 6C–6. . . . . .
Speed Sensitive Power Steering System Operating
With Full Assist At All Times 6C–7. . . . . . . . . . . . . . .
Speed Sensitive Power Steering System Operating
with Decreased Assist At All Times 6C–9. . . . . . . . .
MAINTENANCE AND REPAIR6C–11 . . . . . . . . . . . . . .
ON–VEHICLE SERVICE 6C–11. . . . . . . . . . . . . . . . . . . .
Rack and Pinion Assembly 6C–11. . . . . . . . . . . . . . . . . Outer Tie Rod 6C–14. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Dust Boot 6C–15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Straight–Ahead Check 6C–16. . . . . . . . . . . . . . . . . . . .
Intermediate Shaft and Dash Seal 6C–17. . . . . . . . . .
Hydraulic Cylinder Lines 6C–20. . . . . . . . . . . . . . . . . . .
Speed Sensitive Power Steering Control
Module 6C–21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
UNIT REPAIR 6C–22. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rack and Pinion 6C–22. . . . . . . . . . . . . . . . . . . . . . . . . .
Stub Shaft Seals and Upper and Lower
Bearing 6C–26. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rack Bearing 6C–29. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rack Bearing Preload Adjustment 6C–30. . . . . . . . . . .
Valve and Pinion 6C–30. . . . . . . . . . . . . . . . . . . . . . . . . .
GENERAL DESCRIPTION AND SYSTEM
OPERATION6C–33 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Rack and Pinion 6C–33. . . . . . . . . . . . . . . . . . . .
Speed Sensitive Power Steering System 6C–33. . . . .
SPECIFICATIONS
GENERAL SPECIFICATIONS
ApplicationDescription
Capacity1.1 Liter (1.16 qt)
LubricantPower Steering Fluid DEXRON®–II or III

Page 1919 of 2643

DAEWOO NUBIRA 2004 Service Repair Manual 6C – 2IPOWER STEERING GEAR
DAEWOO V–121 BL4
FASTENER TIGHTENING SPECIFICATIONS
ApplicationNSmLb–FtLb–In
Adjuster Plug12–106
Adjuster Plug Locknut7556–
Control Module Bracket Bolts7–62
Da

Page 1920 of 2643

DAEWOO NUBIRA 2004 Service Repair Manual POWER STEERING GEAR 6C – 3
DAEWOO V–121 BL4
DIAGNOSIS
POWER RACK AND PINION STEERING GEAR
Hissing Noise
ChecksAction
Check the intermediate shaft joints for looseness.Tighten the intermediate sha

POWER STEERING GEAR 6C – 3
DAEWOO V–121 BL4
DIAGNOSIS
POWER RACK AND PINION STEERING GEAR
Hissing Noise
ChecksAction
Check the intermediate shaft joints for looseness.Tighten the intermediate shaft joints.
Check the power steering hose for contact with other com-
ponents.Be sure the power steering hose is correctly fitted into the
hose clips.
Rattling Noise in Steering Gear
ChecksAction
Check the power steering hose for contact with the body.Be sure the power steering hose is correctly fitted into the
hose clips.
Check the steering gear for insufficient lubrication.Lubricate the steering gear.
Check the steering gear mounting for improper installa-
tion.Tighten the steering gear mounting bracket nuts and bolts.
Check the outer tie rods for improper installation.Tighten the outer tie rod joints. Replace the outer tie rods.
Poor Return of Steering Wheel to Center
ChecksAction
Check the steering wheel for contact with the turn signal
housing.Adjust the turn signal housing.
Check the intermediate shaft joints for binding or loose-
ness.Replace the intermediate shaft.
Check the power steering pump flow control valve for
sticking and improper alignment.Replace the power steering pump.
Check the wheel alignment.Align the wheels.
Check the wheel bearings for wear or damage.Replace the wheel bearings.
Check the intermediate shaft joints for improper installa-
tion.Adjust the intermediate shaft between the steering gear
and the steering column.
Replace the intermediate shaft.
Check the outer tie rods and the ball joints for binding or
looseness.Tighten the tie rods and the ball joints. Replace the tie rods
and the ball joints.
Check the steering gear adjustments.Perform a straight–ahead check.
Check the steering column shaft seal for rubbing on the
shaft.Replace the dash seal.
Check the steering shaft bearings for binding.Replace the stub shaft bearings.
Momentary Increase in Effort When Turning the Wheel Quickly
ChecksAction
Check the power steering pump for internal leaks.Replace the power steering pump.
Check the hoses for damage or restricted flow.Replace the power steering hoses and/or pipes.
Check the power steering fluid level.Fill the power steering fluid reservoir.
Check the power steering pump flow control valve for
sticking and improper operation.Replace the power steering pump.

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