YH4
GRAND
VITARA
AIR CONDITIONING (OPTIONAL) 1B-41
INSPECTION
1) Check evaporator fins for blockage. If found clogged, use com-
pressed air to clean the fins.
CAUTION:
Do not use water for cleaning of evaporator.
Be careful not to damage evaporator fins. If evaporator
fin is bent, straighten it by using a screwdriver or pair of
pliers. If any leakage is found from fitting or tube, repair
or replace evaporator.
2) Check inlet and outlet fittings for crack or scratch. Repair them
as required.
REASSEMBLY and INSTALLATION
1) Reverse removal and disassembly sequence to install cooling
unit, noting the following points.
Install uniformly the evaporator packing to dash panel hole for
expansion valve.
Adjust fresh air control cable, refer to ªHEATER CONTROL
LEVER ASSEMBLYº in Section 1A.
2) Enable air bag system. Refer to ªEnabling Air Bag Systemº in
Section 10B.
3) Evacuate and charge system. Refer to ªEVACUATINGº and
ªCHARGINGº in this section.
NOTE:
When the thermistor removed, it should be reinstalled in
original position.
If cooling unit or evaporator is replaced, pour 25 cc of refrig-
erating oil to compressor suction-side.
YH4
GRAND
VITARA
For CAMI production vehicle
For IWATA production vehicle
2. High pressure side (Delivery side hose)
3. Lower pressure side (Suction side pipe)
AIR CONDITIONING (OPTIONAL) 1B-49
COMPRESSOR ASSEMBLY
CAUTION:
None of refrigerant, compressor oil and component parts is interchangeable between two types of A / C:
one using CFC-12 (R-12) and the other using HFC-134a (R-134a).
For identification between these two types, refer to page 1B-2.
When replenishing or changing refrigerant and compressor oil and when replacing parts, make sure
that the material or the part to be used is appropriate to the A / C installed in the vehicle being serviced.
Use of incorrect refrigerant or compressor oil will result in leakage of refrigerant, damage in parts or
other faulty condition.
PRECAUTION
When servicing the compressor, keep dirt or foreign material away from getting on or into the compressor parts
and system. Clean tools and a clean work area are important for proper service.
The compressor connection and the outside of the compressor should be cleaned before any ªOn-vehicleº repair
or before removal of the compressor. The parts must be kept clean at all times and any parts to be reassembled
should be cleaned with Trichloroethane, naphtha, kerosene or equivalent solvent and dried with dry air. Use only
lint free cloths to wipe parts.
The operations described are based on bench overhaul with compressor removed from the vehicle, except as
noted. They have been prepared in order of accessibility of the components.
When compressor is removed from the vehicle for servicing, the oil remaining in the compressor should be dis-
carded and new refrigerant oil added to the compressor.
Minor repair procedures may be done on the vehicle without discharging the system. Major repair procedures re-
quire that the system be discharged of refrigerant.
INSPECTION
1) Install manifold gauge set (1) as shown in the figure.
2) Close Hi (4) and Lo (5) hand valves.
3) Run engine at fast idle.
4) Check compressor assembly for following items.
If any of the above checks indicated a defect, repair compressor
assembly.
High pressure gauge reading is not low and low pressure
gauge reading is not higher than normal.
Metallic sound.
Leakage from shaft seal.
YH4
GRAND
VITARA
AIR CONDITIONING (OPTIONAL) 1B-51
G16 engine
J20 engine
H25 engine
3. Compressor pulley
4. Crankshaft pulley
INSTALLATION
FOR IWATA PRODUCTION VEHICLE
1) Pour new compressor oil. The amount must be the same with
the amount measured in REMOVAL.
NOTE:
Compressor assembly supplied from factory is filled up
with following amount of oil.
Amount of oil in compressor: 120 cm
3 (120 cc, 7.5 in3)
2)For G16 engine:
Install compressor assembly temporarily to bracket, then install
compressor drive belt (2).
For J20 and H25 engines:
Install compressor assembly to its bracket.
Tighten bolts (a) first, then (b).
Tightening Torque
(a), (b): 23 N
.m (2.3 kg-m, 17.0 lb-ft)
3) Connect suction and discharge hoses to compressor assembly.
4)For G16 engine:
Tension compressor drive belt (2) by tightening compressor as-
sembly mounting bolts. Refer to Section 3B1 for drive belt ten-
sion.
Tighten bolt (a) first, then (b).
Tightening Torque
(a), (b): 23 N
.m (2.3 kg-m, 17.0 lb-ft)
For J20 engine:
Install generator belt (1). Refer to Section 6H for details.
For H25 engine:
Install compressor drive belt (2). Refer to Section 3B1 for instal-
lation and belt tension.
5) Connect thermal protector lead wire.
6) Evacuate and charge system according to previously described
procedure.
CAUTION:
Be sure to use HFC-134a (R-134a) compressor oil.
YH4
GRAND
VITARA
1B-52 AIR CONDITIONING (OPTIONAL)
G16 engine
J20 engine
3. Compressor pulley
4. Crankshaft pulley
FOR CAMI PRODUCTION VEHICLE
1) Pour new compressor oil. The amount must be the same with
the amount measured in REMOVAL.
NOTE:
Compressor assembly supplied from factory is filled up
with the following amount of oil.
Amount of oil in compressor: 120 cm
3 (120 cc, 7.5 in3)
2)For G16 engine:
Install compressor assembly temporarily to bracket, then install
compressor drive belt (2).
For J20 engine:
Install compressor assembly to its bracket.
Tighten bolts (a).
Tightening Torque
(a): 23 N
.m (2.3 kg-m, 17.0 lb-ft)
3) Connect suction and discharge hoses to compressor assembly.
4)For G16 engine:
Tension compressor drive belt (2) by tightening compressor as-
sembly mounting bolts. Refer to Section 3B1 for drive belt ten-
sion.
Tighten bolt (a) first, then (b).
Tightening Torque
(a): 23 N
.m (2.3 kg-m, 17.0 lb-ft)
For J20 engine:
Install generator belt (1). Refer to Section 6H for details.
5) Connect thermal protector lead wire.
6) Evacuate and charge system according to previously described
procedure.
CAUTION:
Be sure to use HFC-134a (R-134a) compressor oil.
YH4
GRAND
VITARA
AIR CONDITIONING (OPTIONAL) 1B-57
3) Using special tool (B), remove clutch plate (1).
Special Tool
(B): 09991-06030
4) Disconnect clutch coil lead wire from compressor thermal switch
led wire.
5) Remove felt ring (if equipped) and shims from shaft.
6) Using special tool (C), remove circlip.
Special Tool
(C): 09900-06107
7) Remove clutch coil lead wire clamp screw.
8) Remove clutch pulley with puller (1) from compressor (2).
NOTE:
Be careful not to damage pulley when tapping magnet
clutch.
9) Remove clutch coil.
INSTALLATION
1) Install clutch coil (2).
Protrusion on under side of clutch coil must match hole in com-
pressor (3) to prevent movement ant correctly locate lead wire.
2) Using special tool (C), install snap ring (1) as shown.
Special Tool
(C): 09990-06107
3) Clamp covering portion of lead wire.
YH4
GRAND
VITARA
3B1
POWER STEERING (P / S) SYSTEM 3B1-1
GENERAL DESCRIPTION3B1- 2 . . . . . . . . . . . . . .
Power Steering System 3B1- 2. . . . . . . . . . . . . . . . .
Steering Gear Box 3B1- 3. . . . . . . . . . . . . . . . . . . . . .
Power Steering (P / S) Pump 3B1- 4. . . . . . . . . . . . . .
DIAGNOSIS3B1- 5 . . . . . . . . . . . . . . . . . . . . . . . . . . .
General Diagnosis Table 3B1- 5. . . . . . . . . . . . . . . .
Steering Wheel 3B1- 7. . . . . . . . . . . . . . . . . . . . . . . .
Steering Wheel Play Check 3B1- 7. . . . . . . . . . . .
Steering Force Check 3B1- 7. . . . . . . . . . . . . . . . .
Power Steering Fluid 3B1- 7. . . . . . . . . . . . . . . . . . . .
Power Steering Fluid Level Check 3B1- 7. . . . . .
Power Steering Pump Drive Belt 3B1- 8. . . . . . . . .
Belt Tension Check 3B1- 8. . . . . . . . . . . . . . . . . . .
Belt Tension Adjustment 3B1- 8. . . . . . . . . . . . . . .
Idle Up System 3B1- 9. . . . . . . . . . . . . . . . . . . . . . . . .
Idle Up System Check 3B1- 9. . . . . . . . . . . . . . . .
Fluid 3B1- 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fluid Leakage Check 3B1- 9. . . . . . . . . . . . . . . . . Hydraulic Pressure in P / S Circuit 3B1-10. . . . . . . . .
Hydraulic Pressure Check 3B1-10. . . . . . . . . . . . .
Boot 3B1-11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Steering Rack Boot Check 3B1-11. . . . . . . . . . . . .
Tie-Rod End Boot Check 3B1-12. . . . . . . . . . . . . .
Air Bleeding Procedure 3B1-12. . . . . . . . . . . . . . . . . .
ON-VEHICLE SERVICE3B1-13 . . . . . . . . . . . . . . . .
Tie-Rod End 3B1-13. . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Steering Gear Box Assembly 3B1-14. . . . . .
Rack Boot and Tie-Rod (Except Canvas
Top LH Model) 3B1-16. . . . . . . . . . . . . . . . . . . . . . . .
Rack Boot and Tie-Rod (For Canvas
Top LH Model) 3B1-17. . . . . . . . . . . . . . . . . . . . . . . .
Power Steering Pump 3B1-19. . . . . . . . . . . . . . . . . . .
TIGHTENING TORQUE SPECIFICATION3B1-26 . . .
REQUIRED SERVICE MATERIAL3B1-26 . . . . . . . .
SPECIAL TOOL3B1-26 . . . . . . . . . . . . . . . . . . . . . . .
SECTION 3B1
POWER STEERING (P/S) SYSTEM
WARNING:
For vehicles equipped with Supplemental Restraint (Air Bag) System:
Service on and around the air bag system components or wiring must be performed only by an autho-
rized SUZUKI dealer. Refer to ªAir Bag System Components and Wiring Location Viewº under ªGener-
al Descriptionº in air bag system section in order to confirm whether you are performing service on
or near the air bag system components or wiring. Please observe all WARNINGS and ªService Precau-
tionsº under ªOn-Vehicle Serviceº in air bag system section before performing service on or around
the air bag system components or wiring. Failure to follow WARNINGS could result in unintentional
activation of the system or could render the system inoperative. Either of these two conditions may
result in severe injury.
Technical service work must be started at least 90 seconds after the ignition switch is turned to the
ªLOCKº position and the negative cable is disconnected from the battery. Otherwise, the system may
be activated by reserve energy in the Sensing and Diagnostic Module (SDM).
NOTE:
Some parts in the Power Steering Gear Box cannot be disassembled or adjusted. For detailed informa-
tion, refer to the description of ªPOWER STEERING GEAR BOX ASSEMBLYº.
All steering gear fasteners are important attaching parts in that they 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 replace-
ment part of lesser quality or substitute design. Torque values must be used as specified during reas-
sembly to assure proper retention of these parts.
Although the figures in this section show only the left-hand steering vehicle, the same work procedure
and data apply to the right-hand steering vehicle.
CONTENTS
YH4
GRAND
VITARA
POWER STEERING (P / S) SYSTEM 3B1-5
DIAGNOSIS
GENERAL DIAGNOSIS TABLE
ConditionPossible CauseCorrection
Steering wheel
feels heavy
(at low speed)Fluid deteriorated, low viscosity, different
type of fluid mixed
Pipes or hoses deformed, air entering
through joint
Insufficient air purging from P / S circuit
P / S belt worn, lacking in tension
Tire inflation pressure excessively low
Front end alignment out of order
Steering wheel installed improperly (twisted)
Bind in tie rod or tie rod end ball joint
P / S pump hydraulic pressure fails to increase
P / S pump hydraulic pressure increases
but slowly
Steering gear box malfunctionReplace fluid.
Replace defective part.
Purge air.
Adjust belt tension or replace
belt as necessary.
Inflate tire.
Check and adjust front end
alignment.
Install steering wheel correctly.
Replace defective part.
Check pressure and repair or
replace defective part.
Check pressure and repair or
replace defective part.
Replace gear box.
Steering wheel
feels heavy
momentarily when
turning it to the
left or rightAir drawn in due to insufficient amount
of fluid
Slipping P / S belt
P / S pump hydraulic pressure fails to
increase
P / S pump hydraulic pressure increases
but slowly
Steering gear box malfunctionAdd fluid and purge air.
Adjust belt tension or replace
belt as necessary.
Check pressure and repair or
replace defective part.
Check pressure and repair or
replace defective part.
Replace gear box.
Poor recovery
from turnsNOTE:
To check steering wheel for recovery, with vehicle running at 22 mile / h (35 km / h),
turn steering wheel 90 and let it free. It should return more than 60.
Deformed pipes or hoses
Steering column installed improperly
Front end alignment out of order
Ball joints binding
P / S pump hydraulic pressure fails to
increase
P / S pump hydraulic pressure increases
but slowly
Steering gear box malfunctionReplace defective part.
Install steering column correctly.
Check and adjust front end
alignment.
Replace defective part.
Check pressure and repair or
replace defective part.
Check pressure and repair or
replace defective part.
Replace gear box.
YH4
GRAND
VITARA
3B1-12 POWER STEERING (P / S) SYSTEM
TIE-ROD END BOOT CHECK
Check boot for crack and damage and if any, replace it with a new
one.
AIR BLEEDING PROCEDURE
1) Hoist the front end of vehicle and apply safety stands.
2) Fill P / S fluid reservoir with fluid up to specified level.
NOTE:
Before starting engine, place transmission gear shift lever
in ªNeutralº (shift selector lever to ªPº range for A / T mod-
el), and set parking brake.
3) After running engine at idling speed for 3 to 5 seconds, stop it
and add fluid to satisfy specification.
4) With engine stopped, turn steering wheel to the right and left as
far as it stops, repeat it a few times and fill fluid to specified level.
5) With engine running at idling speed, repeat stop-to-stop turn of
steering wheel till all foams in P / S fluid reservoir are gone.
NOTE:
Make sure to bleed air completely. If air remains in fluid, P / S
pump may make humming noise or steering wheel may feel
heavy.
6) Finally check to make sure that fluid is filled to specified level.