spring SUZUKI GRAND VITARA 2003 2.G Service User Guide

YH4
GRAND
VITARA
3B1-20 POWER STEERING (P / S) SYSTEM
1. P/S fluid
reservoir
2. Suction hose
1. P / S pulley
2. Mounting bolt
9. Vane
10. Rotor
11. Snap ring
12. Side plate
13. Pulley (pump shaft)
14. Oil seal
15. Pump body
16. Flow control
valve Assembly 1. Suction connector
2. O-ring
3. Pressure switch
4. Flow control valve
(Relief valve)
5. Spring
6. Plug
7. Pump cover
8. Cam ring
REMOVAL
NOTE:
Be sure to clean each joint of suction and discharge sides
thoroughly before removal.
1) Remove suction hose from pump, then disconnect battery nega-
tive cable.
2) Remove P / S fluid reservoir with suction hose.
3) Remove union bolt. Then disconnect high pressure pipe from
pump.
NOTE:
As fluid flows out of disconnected joints, put a receptacle
under joints or a plug to pipe.
4) Disconnect pressure switch lead wire at switch terminal.
5) Loosen related bolts and remove power steering drive belt.
6) Remove P / S pump mounting bolt (s).
7) Remove P / S pump.
NOTE:
Plug each port of removed pump to prevent dust or any oth-
er foreign matter from entering.
DISASSEMBLY
1) Clean its exterior thoroughly.
2) With aluminum plates placed on vise first, grip pump body with
it.
3) Remove suction connector bolt, suction connector and O-ring
from pump body.
4) Remove power steering pressure switch (terminal set) from
pump body.
5) Remove plug, flow control spring and relief valve (flow control
valve) from pump body.
6) Remove cover bolts, pump cover and O-ring from pump body.
7) Remove snap ring from pump shaft.
8) Remove vanes from rotor.
9) Remove cam ring, rotor, side plate and O-rings from pump
body.
10) Pull out pulley from pump body.
11) Remove oil seal from pump body.

YH4
GRAND
VITARA
POWER STEERING (P / S) SYSTEM 3B1-21
1. Thickness gauge
INSPECTION
Pump Body, Cover, Side Plate and Shaft
Check sliding surfaces of each part for wear and damage.
If any defect is found, replace pump assembly.
Cam Ring
Check vane sliding surface of cam ring for wear and damage.
If any defect is found, replace pump assembly.
Rotor and Vane

Check sliding surfaces of rotor and vane for wear and damage.

Check clearance between rotor and vane.
Clearance: Standard 0.015 mm (0.0006 in.)
Limit 0.027 mm (0.0011 in.)
Replace pump assembly if any defect is found in above checks.
Relief Valve (Flow Control Valve) and Its Spring

Check fluid passage of relief valve and orifice of connector for ob-
struction (clogged).

Check sliding surface of relief valve for wear and damage.

YH4
GRAND
VITARA
3B1-22 POWER STEERING (P / S) SYSTEM
1. Flow control spring
1. Oil seal
2. Shaft (pulley)
1. O-ring
1. Side plate
2. Bolt hole
1. Rotor
2. Snap ring
3. Dot

Check free length of relief valve spring.
Free length: Standard 22.0 mm (0.866 in.)
Limit 19.0 mm (0.748 in.)
Replace if any defective is found.
ASSEMBLY
Reverse disassembly procedure for assembly, noting the following.
1) Apply grease to oil seal lip and apply power steering fluid to slid-
ing surface of the shaft then insert pulley's shaft from oil seal side
of the pump body.
ªAº: Grease 99000-25010
2) Apply power steering fluid to O-rings and fit them to pump body.
3) Install side plate to pump body.
NOTE:
Carefully align the dowel pins on the side plate at bolt hole
as shown in figure.
4) Apply power steering fluid to sliding surface of rotor.
5) Install rotor to shaft, directing dot marked side of rotor facing up.
6) Install new snap ring to shaft, then make sure to fit snap into shaft
groove securely.
NOTE:
Never reuse the removed snap ring.

YH4
GRAND
VITARA
3B1-24 POWER STEERING (P / S) SYSTEM
1. Pump cover
1. Pressure switch
1. Suction connector
2. O-ring
1. Suction connector
15) Gradually tighten new pump cover bolts to specified torque.
NOTE:
After installing pump cover, check to make sure that shaft
can be turned by hand.
Tightening Torque
(a): 23 N
.m (2.3 kg-m, 17.0 lb-ft)
16) Apply power steering fluid to O-ring of terminal switch.
17) Install pressure switch to pump body.
Tightening Torque
(a): 28 N
.m (2.8 kg-m, 20.0 lb-ft)
18) Apply power steering fluid to relief valve (flow control valve).
19) Install relief valve (flow control valve) to pump body.
20) Install flow control spring.
21) Apply power steering fluid to O-rings of plug.
22) Install O-rings to plug.
23) Tighten plug to specified torque.
Tightening Torque
(a): 60 N
.m (6.0 kg-m, 43.5 lb-ft)
24) Apply power steering fluid to O-ring of suction connector.
25) Install O-ring to suction connector.
26) Install suction connector to pump body as shown in figure.
Tighten new suction connector bolts to specified torque.
Tightening Torque
(a): 10 N
.m (1.0 kg-m, 7.5 lb-ft)

YH4
GRAND
VITARA
3D
FRONT SUSPENSION 3D-1
GENERAL DESCRIPTION3D- 2 . . . . . . . . . . . . . .
DIAGNOSIS3D- 3 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Diagnosis Table 3D- 3. . . . . . . . . . . . . . . . . . . . . .
Stabilizer Bar and Bushing Check 3D- 3. . . . . .
Strut Damper and / or Coil Spring Check 3D- 3. .
Suspension Arm / Knuckle Check 3D- 3. . . . . . . .
Suspension Control Arm Joint Check 3D- 4. . . .
Suspension Control Arm Bushing Check 3D- 4.
Wheel Disc, Nut & Bearing Check 3D- 4. . . . . .
ON-VEHICLE SERVICE3D- 5 . . . . . . . . . . . . . . . . Stabilizer Bar / Bushings 3D- 5. . . . . . . . . . . . . . .
Strut Damper 3D- 6. . . . . . . . . . . . . . . . . . . . . . . .
Coil Spring 3D- 8. . . . . . . . . . . . . . . . . . . . . . . . . .
Bump Stopper / Spring Rubber Seat 3D-11. . . . .
Wheel Hub (Included Wheel Bearing) 3D-12. . .
Knuckle / Wheel Spindle 3D-17. . . . . . . . . . . . . . . .
Suspension Control Arm / Bushings 3D-21. . . . . .
TIGHTENING TORQUE
SPECIFICATIONS3D-23 . . . . . . . . . . . . . . . . . . . .
REQUIRED SERVICE MATERIALS3D-24 . . . . . .
SPECIAL TOOLS3D-25 . . . . . . . . . . . . . . . . . . . . . .
SECTION 3D
FRONT SUSPENSION
CAUTION:

All front suspension fasteners are an important attaching part in that it could affect the performance
of vital parts and systems, and / or could result in major repair expense. They must be replaced with
one of the same part number or with an equivalent part if replacement becomes necessary. Do not
use a replacement part of lesser quality or substitute design. Torque values must be used as specified
during reassembly to assure proper retention of this part.

Never attempt to heat, quench or straighten any front suspension part. Replace it with a new part or
damage to the part may result.
CONTENTS

YH4
GRAND
VITARA
FRONT SUSPENSION 3D-3
DIAGNOSIS
DIAGNOSIS TABLE
Refer to Section 3.
STABILIZER BAR AND BUSHING CHECK
BAR
Inspect for damage or deformation. If defective, replace.
BUSHING
Inspect for damage, wear or deterioration. If defective, replace.
STRUT DAMPER AND / OR COIL SPRING
CHECK
1) Inspect strut for oil leakage. If strut is found faulty, replace it as
an assembly unit, because it can not be disassembled.
2) Strut function check
Check and adjust tire pressures as specified.
Bounce body three or four times continuously by pushing front
end on the side with strut to be checked. Apply the same amount
of force at each push and note strut resistance both when
pushed and rebounding.
Also, note how many times vehicle body rebounds before com-
ing to stop after hands are off. Do the same for strut on the other
side.
Compare strut resistance and number of rebound on the right
with those on the left.
And they must be equal in both. With proper strut, body should
come to stop the moment hands are off or after only one or two
small rebounds. If struts are suspected, compare them with
known good vehicle or strut.
3) Inspect for damage or deformation.
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.
Replace any parts found defective in steps 2) ± 7).
SUSPENSION ARM / KNUCKLE CHECK
Inspect for cracks, deformation or damage.

YH4
GRAND
VITARA
3D-8 FRONT SUSPENSION
1. Circlip
2. Washer
1. Wire
1. Front wheel
speed sensor
2. Harness clamp bolt
COIL SPRING
REMOVAL
1) Hoist vehicle, allowing front suspension to hang free.
2) Remove wheels.
3) Remove axle shaft drive flange (For 4WD vehicle).
4) Remove front drive shaft circlip and washer (For 4WD vehicle).
5) Remove caliper bolts and suspend caliper with a wire hook.
CAUTION:
Hang removed caliper with a wire hook so as to prevent
brake hose from bending and twisting excessively or be-
ing pulled.
Don't operate brake pedal with pads removed.
6) If equipped with ABS, remove harness clamp bolt and remove
front wheel speed sensor from knuckle.
CAUTION:

Do not pull wire harness when removing front wheel
speed sensor.

Do not cause damage to surface of front wheel speed
sensor and do not allow dust, etc. to enter its installa-
tion hole.
7) Remove brake disc.
NOTE:
If brake disc can not be removed by hand, use 8 mm bolts
as shown.

YH4
GRAND
VITARA
FRONT SUSPENSION 3D-9
1. Coil spring
8) Remove stabilizer bar, refer to steps 2) to 5) of item STABILIZ-
ER BAR / BUSHINGS REMOVAL in this section.
9) Disconnect tie rod end from knuckle by using puller.
10) Support lower arm, using jack as shown.
11) Remove strut bracket bolts.
12) Remove ball stud castle nut.
13) Using puller, disconnect knuckle from ball stud.
14) Remove knuckle and wheel hub comp, while lowering jack.
15) Remove coil spring.

YH4
GRAND
VITARA
3D-10 FRONT SUSPENSION
ªaº < ªbº
1. Circlip
2. Large diameter
1. Axle shaft drive flange
2. Bolt 1. Spring seat
Bottom
INSTALLATION
Reverse removal procedure to install coil spring.
NOTE:
Upper and lower diameters of coil spring are different.
Bring larger diameter end at bottom and set its open end in
place on spring seat.

Be sure to use specified torque for tightening each fastener.

Refer to torque specification chart at the end of this section.

As for ball stud nut, be sure to insert split pin and bend it after tight-
ening it.

Tighten tie-rod end nut with pushing ball stud to upper side so as
not ball stud to be rotated.

For 4WD vehicle
Apply lithium grease to front drive shaft washer and front wheel
spindle outer.
ªAº: Grease 99000-25010

For 4WD vehicle
When installing circlip to drive shaft, utilize screw hole in drive
shaft to pull it out and bring large diameter of circlip at right as
shown.

For 4WD vehicle
When installing axle shaft drive flange to wheel hub, apply sealant
to mating surface of axle shaft drive flange and tighten flange bolt
to specified torque.
ªAº: Sealant 99000-31090
Tightening Torque
(a): 50 N
.m (5.0 kg-m, 36.5 lb-ft)

YH4
GRAND
VITARA
FRONT SUSPENSION 3D-11
1. Front wheel speed sensor
2. Bolt
1. Spring rubber
seat
2. Bump stopper2, (b)
1

Check that no foreign material is attached to sensor and rotor.
Install wheel speed sensor and its harness clamp.
Tightening Torque
(a): 10 N
.m (1.0 kg-m, 7.5 lb-ft)
(b): 23 N
.m (2.3 kg-m, 17.0 lb-ft)
CAUTION:

Do not pull wire harness or twist more than necessary
when installing front wheel speed sensor.

Fit harness grommet to inner fender securely.

Check that there is no clearance between sensor and knuckle.
BUMP STOPPER / SPRING RUBBER SEAT
REMOVAL
1) Remove coil spring. Refer to steps 1) to 15) of item ªCOIL
SPRING REMOVALº in this section.
2) Remove spring rubber seat.
3) Remove bump stopper, using special tool.
Special Tool
(A): 09941-66010
INSTALLATION
1) Tighten bump stopper to specified torque, using special tool.
Tightening Torque
(a): 50 N
.m (5.0 kg-m, 36.5 lb-ft)
2) Install spring rubber seat.
3) Install coil spring. Refer to item ªCOIL SPRING INSTALLATIONº
in this section.