2008 GREAT WALL FLORID cooling

Downloaded from www.Manualslib.com manuals search engine 205Air Conditioning System
FailureSymptoms Cause analysis
Insufficient
cooling
Wind vol-
ume normal
Compressor operates normally
(3) High pressure side pressure is too low
(a) Low pressure pipeline damaged
(b) Low pressure pipeline blocked
(4) Low pressure side pressure is too low
(a) Evaporator frost
(b) Expansion valve is blocked
(c) Low pressure pipeline not clear
(d) Thermal speed adjustive resistance failure
(5) Low pressure side's pressure sometimes normal, sometimes negative,
moisture in the cooling system, and ice blockage
(6) Low pressure side's negative pressure, high pressure side's pressure too
low, blockage in the cooling system
(7) Low pressure side pressure too low, high pressure side pressure too high
(a) Inner portion of the condenser is blocked
(b) High pressure pipeline blocked
(8) Low pressure side pressure too high, high pressure side pressure \
too low
(a) Compressor leaks
(b) Compressor valve damaged
(9) Low wind volume of the condenser blower can lead to poor heat dissipation
Compressor operates abnormally
(1) Compressor internal malfunction
(2) Compressor belt loose, slides
(3) Electromagnetic clutch malfunction
(a) Supply voltage low
(b) Interference between the stator and the rotor
(c) Idling stabilizing amplifier malfunction
(d) Circuit broken, connector detached
(e) Bad switch and relay operation
(f) Short, open circuit
(g) Bad ground
Other causes
Dysfunctional Carriage seal
Cooling
system is
too noisy
Noise too loudBelt loose or overly worn
Compressor's mounting bracket set screw loose
Compressor's mounting bracket damaged
Compressor's internal components are damaged
Refrigerant too little or empty
Clutch slip noise
Clutch bearing lacks oil or is damaged
Blower motor bearing damaged
Blower bracket broken or loose
Blower vane broken or loose
Blower vane rubs against other components
Troubleshooting (Continued)

Downloaded from www.Manualslib.com manuals search engine GWFLORID Maintenance Manual206
FailureSymptoms Cause analysis
Heating sys-
tem
No or insuffi-
cient heating
Air conditioner blower malfunction
Blower relay damaged
Hot air duct blockage
Cooling water pipe blockage
Temperature change throttle actuator damaged
Coolant insufficient
Blower does
not work
Fuse blown or ill switch contact
Blower motor burnt out
Blower's high speed relay broken
Speed adjustive resistance damaged
Open circuit
Water leakageHeater water pipe degradation, poor connection
Over heatedFan's speed adjustive resistance damaged
Temperature change throttle actuator damaged
Defroster’s hot
air insufficient
Mode cable damaged
Vent is not in place
Air outlet blockage
Insufficient heating
Air duct mounting
Open circuit
Troubleshooting (Continued)

Downloaded from www.Manualslib.com manuals search engine 207Air Conditioning System
Air Conditioning System's Structure Diagram and Fundamentals
Air Conditioning System Overview
Basic composition
Composed of air conditioner, compressor assembly, condenser
assembly, pipeline, defroster system, heating & ventilation
system, etc. The air conditioner also includes evaporator and
blower components.
Function
This system is a manually controlled air conditioning
system, with steam compression as its cooling method.
Residual heat water warming is the heating method the
engine adopts. Inner & outer circulation, blowing mode,
and cold & warm temperature adjustment are all controlled
by individual cables from the air conditioning controller. It
achieves ventilation, warming, and cooling integration.
Caution: While starting the compressor, you must open
the air regulation knob first, otherwise it cannot start.
Operation
The compressor is driven directly by the engine. High
temperature and high pressure refrigerant vapor exhausted
from the compressor will pass through the high pressure
pipe into the condenser, dissipate the heat via temperature
difference, and then form a high pressure liquid. High
pressure liquid passes through the accumulating dehydrator
into the expansion valve, and after passing through the
throttle valve, it becomes a low pressure liquid. Heat
exchange via the evaporator will cool down the room’s air,
and then the refrigerant inside the system will become a low
temperature and low pressure vapor, which is then sucked
into the compressor and compressed into high temperature
and high pressure air again. Thus a cooling cycle is formed.
The circulation continues, which maintains a comfortable
temperature inside the vehicle.
Expansion valve
Compressor
Condenser fan
Condenser
Pipeline
Air conditioner
Accumulating dehydrator

Downloaded from www.Manualslib.com manuals search engine GWFLORID Maintenance Manual212
High pressure side pressure(MPa)
Appropriate pressure
Appropriate chargeExcessive charge
Refrigerant charge (g)
5. When charging the refrigerant, carefully observe the
high pressure side of the manifold pressure gauge as
well as the refrigerant's rate of flow (limpid, foamy, hazy)
which can all be seen from the inspection window. Use
this window to determine the appropriate time to stop
charging the refrigerant (by closing the low pressure
valve).
When the compressor is operating, please do not close the
high pressure valve.
Before inspecting the cooling level, confirm the regulated
refrigerant charge quantity for the air conditioning system.
Determine the charge amount for the refrigerant charge.
Please carry out the setup according to the following
working conditions.
Engine's water tank temperature: steady
Engine speed: normal idle
A/C switch: ON
Blower speed control switch: highest gear
Temperature controller: inner circulation
Door: completely open
Window: completely open
Filling Quantity and Method for Refrigerant Oil
First vacuum the refrigerant system to 0.2 × 10-5 Pa, then fill it with model number RS20 refrigerant. The steps
are as follows:
1. Close the high pressure, manually operated valve and the auxiliary valve\
.
2. Remove the high pressure side's hose from the manifold pressure gauge an\
d insert it into the oil cup.
3. Open the auxiliary valve and draw the refrigerant from the oil cup to th\
e refrigeration system.
4. When refrigerant in the oil cup is about to be fully vacuumed, immediately close the auxiliary valve, in
order to avoid sucking air into the system.
5. Screw the high pressure side hose connector onto the manifold pressure gauge, start the vacuum
pump and open the high pressure, manually operated valve, then open the auxiliary valve to vacuum
the system until it reaches 0.2 × 10-5 Pa, and continue to vacuum for 15 minutes to exhaust the air
which is entering the system following the oil.
Caution: When replacing an old compressor with a new one, be sure to bleed out some oil in order to
level off the new and the old compressor's oil level, and to avoid an excessive oil amount influencing
the cooling effect. When using an old or repaired compressor, be sure to keep the refrigerant inside
the compressor the same level as the one that is being replaced.
Daily Maintenance of the Air Conditioning System
In order to guarantee the air conditioning system's normal operation, regular maintenance should be performed.
Daily maintenance for the air conditioning system is as follows:
1. Inspect and clean the air conditioning system's condenser. The cooling fin's insides need to be
cleaned, with no blockage in between. After driving in the rain or on a muddy road, check the
condenser fan for silt or rocks. If any are found, immediately clean the\
m up.
2. Inspect the refrigeration system's refrigerant amount: When the air conditioning unit is operating
normally, observe the oil check glass. Under normal conditions, the oil check glass should have no air
bubbles.
3. Inspect the drive belt. The belt between the compressor and the decoration cover should be tight\
.
4. Check the air conditioning system to make sure there is no irregular noi\
se or unusual odors.
5. Check the compressor's inlet and exhaust port areas to make sure the tem\
perature is normal.
6. Check to make sure the appearance of the refrigeration system's hose is correct and that all the
connections are firm.
7. Inspect if the refrigeration system's pipelines run into other components, and any traces of leaking oil
at each connection.
8. Check and make sure the refrigeration system's circuit connector is firm, and any sign of circuit
disconnection.
9. Inspect if the compressor's fastening bolts are sturdy, reliable or flawed.
the refrigerant into the refrigeration system in the gas
form), and open the manifold pressure gauge's low
pressure valve.

Downloaded from www.Manualslib.com manuals search engine 231Airbags
Driver side airbag module
Wi r e h a r n e s s u s e d for deployment
Old tire with no hub
Wire harness used for deployment
Wire harness used for deployment
Wire harness used for deploymentShort circuit area
Longer than 6 m
4. Deploy the wire harness after removing the No. 2
connector of the clock spring.
Prepare two wire harnesses longer than 6 m for deployment,
and connect one of their ends together (to short circuit).
Caution: When deploying the airbag, make sure to
maintain a distance of at least 6 m away from objects
or people, and perform the deployment on a flat sur-
face. While deploying the airbag module outdoors,
avoid strong winds, and ignite it against the wind.
8. Place three old tires with no hub on the tires which are
used to fix in place the driver side airbag module (shown
on the left).
9. Cut off the connection of the driver side airbag module's
wire harness which is used for deployment at a place as
far away from the vehicle as possible and connect it to
the two terminals removed from the vehicle battery, caus-
ing it to deploy (shown on the left).
Caution: Deploy it only after ensuring that there are no
people around the airbag module. After the deployment
of driver side airbag module, the gas generator will be ex-
tremely hot. Continue to use it only after 30 min cooling.
10. Discard the deployed driver side airbag module accord-
ing to the discarding essentials.
5. Insert the airbag deployment wire harness into the
airbag execution device.
6. Install the unused bolts on the driver side airbag
module's inner side bolts, and bound the wheel rim with
a thick metal wire, so as to set the wheel rim in place.
7. Connect the wire harness used for deployment which is
connected with the driver side airbag module with the
lower part of the old tire which is used for installing the
wheel rim. Upwardly fix the driver side airbag module
with the metal wire which is connected to the bolt
(shown on the left).

Downloaded from www.Manualslib.com manuals search engine 233Vehicle Body
Front Door Lock Assembly ...............................................234
Rear Door Lock Assembly ................................................237
Trunk Door Lock Assembly ...............................................239
Wiper Arm and Vent Panel Assembly ...............................240
Front & Rear Window Glasses .........................................241
Dashboard ........................................................................\
242
Cooling Unit ......................................................................246
Front Door Assembly ........................................................248
Rear Door Assembly.........................................................251
Trunk Door Assembly .......................................................254
Front Bumper....................................................................256
Rear Bumper ....................................................................259
Seat Belt ........................................................................\
...262
Seats ........................................................................\
........266
Sunroof Assembly.............................................................268
Vehicle Body

Downloaded from www.Manualslib.com manuals search engine GWFLORID Maintenance Manual246
Cooling Unit
Components
Radiator removal
1. Remove the battery negative (-) terminal.
2. Remove the electronic fan connector.
3. Screw off the radiator drain valve, and drain the cool-
ant.
4. Disconnect the engine's water inlet and outlet pipes.
Caution: Avoid impurities entering the pipes.
5. Use a No. 10 wrench to separate the radiator upper
cross member from the vehicle body.
6. Take the radiator out of its mounting hole.
7. Remove the radiator inlet and outlet pipe.
Radiator filler assembly
Radiator upper mount
Radiator inlet connecting pipe
Attachment clip
Radiator assembly
Overflow pipe
Radiator inlet pipe
Electronic fan with overflow tank assembly
Mounting bolt
Radiator outlet pipe
Attachment clip
Radiator lower mount
Radiator drain valve
Fan connection port
Radiator upper cross member
Radiator lower mount
Radiator upper mount
Radiator outlet pipe
Radiator inlet pipe
Radiator
outlet pipe
Radiator inlet pipe