Cover SUZUKI GRAND VITARA 2000 2.G Service User Guide

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GRAND
VITARA
AIR CONDITIONING (OPTIONAL) 1B-11
COMPRESSION SYSTEM DIAGNOSIS
Compressor troubles are mainly following three types: gas leakage, noise and insufficient pressure.
Compressor gas leakages in most cases develop from the shaft seal. When detecting gas leakage, always use
a leak tester. If a small amount of oil seeps out from the shaft seal, there is no necessity of replacing the seal. The
shaft seal has been designed to allow a small amount of oil to leak out for lubricating purpose. Thus, the shaft seal
should be replaced only when a large amount of compressor oil is leaking out or when gas leakage is discovered
by using gas tester.
In regard to noise and insufficient pressure, repairs should be made only after diagnosing the trouble properly.
CONDITION
POSSIBLE CAUSESCORRECTION
Noise from compressor
Defective bearing

Defective cylinder and / or shaftReplace.
Replace.
Noise from magnetic clutch
Defective bearing

Defective clutch faceReplace.
Replace.
Insufficient cooling
Defective gasketReplace.

Defective reed valveReplace.
Not rotating
Locked compressor

Seized magnetic clutch

Rotating parts seized by insufficient oil
amountReplace.
Replace.
Replace.
Oil and / or gas leakage
Defective seal

Defective O-ringReplace.
Replace.

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VITARA
Charge 440
50 g, 14.2
1.9 oz of
refrigerant in gas form
AIR CONDITIONING (OPTIONAL) 1B-23
REFRIGERANT RECOVERY, EVACUATION AND CHARGING
WARNING:

Your eyes should not be exposed to refrigerant (liquid).
Any liquid Refrigerant-134a escaping by accident shows a temperature as low as approx. ± 6C
(42.8F) below freezing point. Should liquid HFC-134a (R-134a) get into your eyes, it may cause a seri-
ous injury. To protect your eyes against such accident, it is necessary to always wear goggles. Should
it occur that HFC-134a (R-134a) strikes your eye(s), consult a doctor immediately.
± DO NOT USE YOUR HAND TO RUB THE AFFECTED EYE(S). INSTEAD, use quantities of fresh cold
water to splash it over the affected area to gradually raise temperature of such area above freezing
point.
± Obtain proper treatment as soon as possible from a doctor or eye specialist.

Should the HFC-134a (R-134a) liquid come into contact with your skin, the affected area should be
treated in the same manner as when skin is frostbitten or frozen.

Refrigerant must not be handled near where welding or steam cleaning is performed.

Refrigerant should be kept at a cold and dark place. It should never be stored where a high tempera-
ture is anticipated, e.g. where exposed to direct sun light, close to fire or inside vehicle (including
trunk room).

Avoid breathing fumes produced when HFC-134a (R-134a) is burned. Such fumes may be hazardous
to health.
OPERATION PROCEDURE FOR CHARGING A / C WITH REFRIGERANT

YH4
GRAND
VITARA
For CAMI production vehicle
For IWATA production vehicle
1B-24 AIR CONDITIONING (OPTIONAL)
RECOVERY
NOTE:

When discharging refrigerant out of A / C system, always re-
cover it by using refrigerant recovery and recycling equip-
ment (1). Discharging it into atmosphere would cause ad-
verse effect to environments.

When handling recovery and recycling equipment, be sure
to follow the instruction manual for the equipment.

YH4
GRAND
VITARA
For CAMI production vehicle
For IWATA production vehicle
AIR CONDITIONING (OPTIONAL) 1B-25
EVACUATING
EVACUATING PROCEDURE
CAUTION:
Do not evacuate before recovering refrigerant in system.
NOTE:
Whenever opened (exposed to atmospheric air), air condition-
ing system must be evacuated by using a vacuum pump. The
A / C system should be attached with a manifold gauge set, and
should be evacuated for approx. 15 minutes.
1) Connect high charging hose (1) and low charging hose (2) of
manifold gauge set (3) respectively as follows:
High Charging Hose (1)
High pressure charging valve (4)
on Discharge Hose
Low Charging Hose (2)i
Low pressure charging valve (5)
on Suction Pipe
2) Attach center charging hose (6) of manifold gauge set (3) to vac-
uum pump (7).
3) Operate vacuum pump (7), and then open discharge-side valve
(9) (Hi) of manifold gauge set (3).
If there is no blockage in the system, there will be an indication
on high pressure gauge (10).
When this occurs, open the other-side valve (8) (Lo) of the set.
4) Approx. 10 minutes later, low pressure gauge (11) should show
a vacuum lower than ± 760 mmHg providing no leakage exists.
NOTE:

If the system does not show a vacuum below ± 760 mmHg,
close both valves, stop vacuum pump and watch move-
ment of low pressure gauge.

Increase in the gauge reading suggests existence of leak-
age. In this case, repair the system before continuing its
evacuation.

If the gauge shows a stable reading (suggesting no leak-
age), continue evacuation.
5) Evacuation should be carried out for a total of at least 15 minutes.
6) Continue evacuation until low pressure gauge indicates a vacu-
um less than ± 760 mmHg, and then close both valves (8), (9).
7) Stop vacuum pump (7). Disconnect center charging hose (6) from
pump inlet. Now, the system is ready for charging refrigerant.
CHECKING SYSTEM FOR PRESSURE LEAKS
After completing the evacuation, close manifold gauge high pres-
sure valve (HI) and low-pressure valve (LO) and wait 10 minutes.
Verify that low-pressure gauge reading has not changed.
CAUTION:
If the gauge reading moves closer to ª0º, there is a leak
somewhere. Inspect the tubing connections, make neces-
sary corrections, and evacuate system once again, making
sure that there are no leaks.

YH4
GRAND
VITARA
For CAMI production vehicle
For IWATA production vehicle
1B-26 AIR CONDITIONING (OPTIONAL)
CHARGING
CAUTION:

ALWAYS CHARGE THROUGH LOW PRESSURE-SIDE of A / C system at after the initial charging is per-
formed from the high-pressure side with the engine stopped.

NEVER CHARGE TO HIGH PRESSURE-SIDE of A / C system with engine running.

Do not charge while compressor is hot.

When installing tap valve to refrigerant container to make a hole there through, carefully follow direc-
tions given by manufacturer.

A pressure gauge should always be used before and during charging.

The refrigerant container should be emptied of refrigerant when discarding it.

The refrigerant container should not be heated up to 40C (104F) or over.

Refrigerant container should not be reversed in direction during charging. Reversing in direction
causes liquid refrigerant to enter compressor, causing troubles, such as compression of liquid refrig-
erant and the like.
NOTE:
The air conditioning system contains HFC-134a (R-134a).
Described here is a method to charge the air conditioning system with refrigerant from the refrigerant ser-
vice container.
When charging refrigerant recovered by using the refrigerant and recycling equipment (when recycling
refrigerant), follow the procedure described in the equipment manufacturer's instruction manual.
The initial charging of the A / C system is performed from the high-
pressure side with the engine stopped.
And next, this method must be followed by charging from the low-
pressure side with the engine running.
1) Check to make sure that hoses are routed properly after eva-
cuating the system.
2) Connect Low-side hose (1) and High side hose (2) of the man-
ifold gauge set (3) in position. Thus open refrigerant container
valve (4) to purge the charging line.
3) Open the high-pressure side valve (6) and charge refrigerant to
system.
4) After a while, open the low-pressure side valve (5) and close the
high-pressure side valve (6).
WARNING:
Make sure that high pressure-side valve is closed se-
curely.
5) Start engine and keep engine speed at 1500 r / min. Then, oper-
ate air conditioning.
6) Charge A / C system with refrigerant in vapor state. At this time,
refrigerant container should be held upright.

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AIR CONDITIONING (OPTIONAL) 1B-31

Tighten flared nuts to specified torque.
Tightening Torque (Flared Nut Used for)
8 mm pipe: 13 N
.m (1.3 kg-m, 9.5 lb-ft)
14.5 mm pipe: 23 N
.m (2.3 kg-m, 16.6 lb-ft)
16 mm pipe: 33 N
.m (3.3 kg-m, 23.8 lb-ft)

Route drain hose so that drained water does not make any contact to vehicle components.
HANDLING REFRIGERANT HFC-134a (R-134a)

When handling refrigerant, always wear goggles to protect your eyes.

Avoid you direct contact to liquid refrigerant.

Do not heat refrigerant container higher than 40C (104F).

Do not discharge refrigerant into atmosphere.

Do not allow liquid refrigerant to touch bright metals. Refrigerant combined with moisture is corrosive and will
tarnish surfaces of bright metals including chrome.

After recovering refrigerant from system, the amount of compressor oil removed must be measured and the same
amount added to the system.
REFRIGERANT RECOVERY
When discharging refrigerant out of A / C system, always recover it by using refrigerant recovery and recycling
equipment. Discharging refrigerant HFC-134a (R-134a) into atmosphere would cause adverse effect to environ-
ments.
NOTE:
When handling recovery and recycling equipment, be sure to follow the instruction manual for the equip-
ment.
REFRIGERANT CHARGE
Charge a proper amount of refrigerant to A / C system according to charging procedure described in recovery, evac-
uation and charging.
CAUTION:
Do not perform an additional refrigerant charging to A / C system. This cause it to overcharge.

YH4
GRAND
VITARA
2. Bolt
For CAMI production vehicle
For IWATA production vehicle
AIR CONDITIONING (OPTIONAL) 1B-33
A / C CONDENSER ASSEMBLY
INSPECTION
Check
a) condenser fins for blockage
b) condenser fittings for leakage
c) condenser fins for damage
Clogged condenser fins should be washed with water, and should
be dried with compressed air.
CAUTION:
Be careful not to damage condenser fins. If condenser 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
condenser.
REMOVAL
1) Disconnect negative (±) cable at battery.
2) Recover refrigerant by using recovery and recycling equipment.
Be sure to follow the instruction manual for the equipment.
The amount of compressor oil removed must be measured and
the same amount added to the system.
3) Remove front bumper assembly and remove lower stay (1) if
equipped (Refer to Section 9 ªBODY SERVICEº).
4) Disconnect compressor discharge hose (1) from condenser in-
let fittings.
CAUTION:
As soon as above hose and pipe are disconnected, cap
opened fittings so that moisture and dust do not enter
condenser.

YH4
GRAND
VITARA
1
For CAMI production vehicle
For IWATA production vehicle
1
AIR CONDITIONING (OPTIONAL) 1B-37
AIR FILTER ELEMENT
REMOVAL
1) Disconnect negative (±) cable at battery.
2) For vehicle with air bag system, disable air bag system. Refer
to ªDISABLING AIR BAG SYSTEMº in Section 10B.
3) Pull down glove box (1) by pushing the shown part (a).
4) Remove filter cover (1).
5) Pull out filter element (1). Pull out upper filter first then the lower
one.

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GRAND
VITARA
AIR CONDITIONING (OPTIONAL) 1B-39
COOLING UNIT (EVAPORATOR)
REMOVAL
1) Disconnect negative (±) cable at battery.
2) Disable air bag system. Refer to ªDisabling Air Bag Systemº in
Section 10B.
3) Recover refrigerant by using recovery and recycling equipment.
Be sure to follow the instruction manual for the equipment.
The amount of compressor oil removed must be measured and
the same amount added to the system.
4) For G16 and J20 engine
Disconnect suction pipe (1), and liquid pipe (2) from evaporator
(cooling unit).
CAUTION:
As soon as above hose and pipe are disconnected, cap
opened fittings so that moisture and dust may not enter
cooling unit.
5) Remove blower motor unit. Refer to Section 1A ªHEATER AND
VENTILATIONº.
6) Disconnect thermistor wire coupler.
7) Remove cooling unit (evaporator).
DISASSEMBLY (FOR CAMI PRODUCTION VEHICLE)
1) Remove filter (2) from cooling unit (3) assembly by removing fil-
ter cover (1).
2) Remove screws (1) to separate evaporator upper and lower
cases from each other.

YH4
GRAND
VITARA
1
1B-40 AIR CONDITIONING (OPTIONAL)
3) Remove upper case (1) and remove evaporator (2) from lower
case (3).
4) Remove following components from evaporator.

Expansion valve (5)

Thermistor (evaporator temperature sensor) (4)
DISASSEMBLY (FOR IWATA PRODUCTION VEHICLE)
1) Remove filter (2) from cooling unit (3) assembly by removing fil-
ter cover (1).
2) Detach clamps (1) to separate evaporator upper and lower
cases from each other.
3) Remove upper case (1) and remove evaporator (2) from lower
case (3).
4) Remove following components from evaporator.

Expansion valve (5)

Thermistor (evaporator temperature sensor) (4)