2008 GEELY CK air filter

69j. Poor intake and exhaust valve seal, failed piston ring, low compression pressure;
h. Too many carbon deposit in spark plug and combustion chamber;
k. Water temperature switch and thermostat fault;
l. Aging of Oxygon sensor;
m. Incorrect ignition timing;
n. Check valve fault.
Figure 149Engine is difficult to start


Check whether the air cleaner is clogged Clogged
Troubleshooting

OK
Check the idle control valve NG
Repair or replace
OK
Check the fuel pressure Excessivly low
Service the electric fuel pump,
fuel filter and fuel pressure regulator
OK
Check the vacuum pressure sensor NG
Replace
OK
Check the water temperature sensor and intake air temperature sensor NG
Replace
OK
Check the start switch signal No
Service the start signal wire
OK
Check the ignition timing Misaligned
Adjust
OK
Check the cylinder pressure NG
Disassemble the engine
OK
Replace the ECU to retry

70(3) Diagnosis procedure for insufficient engine power (Figure 150)
2. Poor deceleration
(1) Symptom
Idling is normal, but the engine is frequently turned off upon sudden release of the accelerator pedal
during driving.
(2) Causes and Troubleshooting:
a. Throttle position sensor is damaged and shall be replaced;
b. Initial idling is not properly adjusted or automatic idle control is wrong, fuel cut RPM is too low,
ECU fault, repair or replace them.Insufficient power
Insufficient
Check whether throttle valve can be fully open Unable to be fully open
Adjust

OK
Check whether the air cleaner is clogged Clogged
Clean or replace
OK
Check the throttle valve position sensor for failure Abnormal
Repair or replace
OK
Check the water temperature switch and thermostat NG
Replace
OK
Check the vacuum pressure sensor for failure NG
Replace
OK
Check the fuel pressure Excessively low or high
Service the electric fuel pump,
fuel filter and fuel pressure regulator
OK
Check the oxygen sensor Incorrect
Replace
OK
Check the injector Incorrect
Replace
OK
Replace the spark plug, ignition coil and high voltage wire
OK
Disassemble the engineFigure 150

713. Poor acceleration
(1) Symptom
Engine speed can not be increased immediately after depressing the accelerator pedal, there is time lag,and the acceleration reaction is delayed or there is slight fluctuation during the acceleration.(2) Causes and Troubleshooting
a. There is fault in throttle position sensor, repair or replace it;
b. Poor intake system seal, repair it;
c. There is low fuel pressure, troubleshoot it;
d. Poor injector operation, clean or replace it;
e. Intake pressure temperature sensor fault, repair or replace it;
f. Check valve is damaged and shall be replaced;
g. Ignition advance angle is not correct and shall be adjusted;
h. Fuel pressure regulator is damaged and shall be replaced;
i. Air cleaner is clogged and shall be cleaned or replaced;
(3) Diagnosis procedure for poor acceleration (Figure 151)
Figure 151Poor acceleration


Check the air tightness of the intake air system Poor seal
Repair

OK
Check whether the air cleaner is clogged Clogged
Clean or replace
OK
Check the throttle valve position sensor for failure Abnormal
Repair or replace
OK
Check the fuel pressure Abnormal
Service the electric fuel pump,
fuel filter and fuel pressure regulator
OK
Check whether the injector inject properly
at idle and maximum load NG

Replace
OK
Check whether the check valve and EVAP are faulty Yes
Repair or replace
OK
Check whether the vacuum pressure sensor is OK NG
Replace
OK
Adjust a ECU to retry

737. Unstable idle or engine shut off at hot status
(1) Symptom
Idle speed is normal during the cold start and becomes unstable at hot status, idle speed is too
low or engine is shut off.
(2) Causes and Troubleshooting
a. Idle is adjusted too low, adjust it to normal condition;
b. Water temperature sensor fault, repair or replace it;
c. Poor injector operation or big injection variation, repair or replace it;
d. Poor water temperature switch and thermostat operation, repair or replace it;
e. Check valve is damaged and needs to be replaced.
Figure 152Rough ildling, easy for engine shut off


Check whethe the air tightness of the intake system is good Poor
Troubleshooting

OK
Check idle control valve for operation Inoperative
Disassemble or replace
Operative
Reset the initial idle speed

Check the spark plug Poor
Adjust the clearance or replace
OK
Check the fuel pressure NG
Check the electric pump, fuel
pressure regulator and fuel filter
OK
Check the injector NG
Replace
OK
Check the pressure sensor NG
Replace
OK
Check the cylinder compression pressure NG
Disassemble the engine
OK
Check and adjust the valve clearance

311Check the condenser1. Check for crack, damage or oil leakage.
•Replace the condenser if any of the above-mentioned faults occurs.
2. Check if the fin area is blocked by dust.
•Clean it if it is blocked.
3. Check if the fin area bends.
•If the fin area bends, level it with a flat head screwdriver.6. Refrigeration Pipeline Removal / Installation1. Remove battery.
2. Drain the refrigerant from the system.
3. Remove air filter.
4. Remove the clamp.
5. Remove the compressor inlet hose.
6. Remove the compressor outlet hose.
7. Remove liquid pipe I.
8. Remove pressure switch connector.
9. Remove the pipe clamp.
10. Remove liquid pipe II.
11. The installation is in the reverse order of the removal.Notice:•If anything moisture or any foreign matter enters into the Refrigeration system for circulation,
the cooling performance of the Refrigeration system will obviously deteriorate with abnormal
noise. Plug the port immediately after removing any cooling circulation component to prevent
anything moistur or any foreign matter from entering the circulation.
Introduction Of The Refrigeration Pipeline Removal:
Nuts union type:Loose the nuts with 2 wrenches and then remove the refrigeration pipe (or the hose).Slider joint type:Clip the slider block recess end with pliers or the similar tool and remove the attaching bolt or screw cap.

315II. A/C System Diagnosis and TroubleshootingTable 1 Abnormal high pressure of the high pressure pipelineAbnormal low pressure of the high pressure pipeline Abnormal high pressure of the low pressure pipelineAbnormal low pressure of the low pressure pipelineHigh and low pressure can not be establishedSight glass has air bubble Compressor inlet side is frosted Compressor noise Abnormal heating on the compressorEvaporator is frostedDrier filter ices up A/C does not refrigerate or the cold air is insufficient× × × × Excessive refill of refrigerantDrain p rop er amount of
refrigerant
× × × × T oo lit t le refill of refrigerantRep air t he gas leak area, refill
p rop er amount of refrigerant
× × × × Refrigerant is leaked allRep air t he gas leak area, refill
p rop er amount of refrigerant
×× ××× ×T here is non-clot t ed gas in
the sy stemLoos en receiver and
condenser inlet connect or,
discharge t he non-clot t ed gas
××Excessive freez ing oil in t he
sy stemCheck comp ressor freez ing
oil level, adjus t it
× Excessive high t emp erat ure
of condenser inletPerform t he check at t he
p lace w it h good vent ilat ion
T here is dus t in t he
condens er core, air channel
w it hin t he condens er is
blocked or suffocat edU s e comp res s ed air or w at er
t o flush and remove t he dirt
on t he condenser
Condenser fan faulty or
brokenCheck the wiring status and
t he fan mot or, correct or
rep lace it
×× Exces s ively low t emp erat ure
of condenser inletStop the op eration of the
refrigerat ion sy st em
× × × Drier blocked Clean
A ir channel in t he evap orat or
blocked or suffocat edRemove t he dirt on t he
evap orat or
Evap orat or fan fault , p oor
blower mot or w ire connect ionCheck the wiring status and
t he fan mot or, correct or
rep lace it
×× ×T here is dirt in evap orat or
coreU s e t he comp res s ed air t o
clean t he evap orat or core × ×
××××
× P roblem Sy mp t om
Possible Cause T roubleshoot ing
×

316 Abnormal high pressure of the high pressure pipelineAbnormal low pressure of the high pressure pipeline Abnormal high pressure of the low pressure pipelineAbnormal low pressure of the low pressure pipelineHigh and low pressure can not be establishedSight glass has air bubble Compressor inlet side is frosted Compressor noise Abnormal heating on the compressorEvaporator is frostedDrier filter ices up A/C does not refrigerate or the cold air is insufficientD irt in t he evap orat or core, or
poor fit between the
exp ansion valve sensing unit
and evap orat or out letCheck and correct it
Non-evap orat ed refrigerant
steam enters into compressorService t he evap orat or and it s
comp onent s s uch as fan
exp ans ion valve op ening is
excessively big or faulty ,
refrigerant sup p ly is
exces s iveA djus t t he exp ans ion valve,
check t he s ens ing unit and t he
evap orat or out let for fit nes s ,
rep lace it as necess ary
××Exp ansion valve op ening is
too smallAdjust exp ansion valve
××××Exp ansion valve fault , sp inal
corrosion or leakageRep lace exp ans ion valve
×× ×T he refrigerant p ip eline
bet ween t he exp ansion valve
sensing unit and t he
exp ansion valve is damaged or
brokenCheck and rep lace t he
exp ansion valve and p ip eline
××Exp ansion valve blocked by
ice or dirtRecy cle t he refrigerant ,
remove and clean t he
exp ansion valve, use the
vacuum p ump t o drain t he
water in the system and then
refill t he refrigerant
× Refrigerant p ip eline blockedD is as s emble and check t he
part
× Comp ressor solenoid clutch,
bearing and p ulley w earCheck and rep lace concerned
worn p art s
×××××× Comp ressor reed is damaged,
exhaus t valve leaksCheck and rep lace t he
comp res s or
× Comp res s or inlet blocked Check and clean
× × D rive belt loos e or broken Rep lace or rep lace it
×Exces s ively low t emp erat ure
in t he vehicle comp art ment sAdjust the selection switch
× × × × Sy s t em p ip eline leaksCheck t he leak area, refill
p rop er amount of refrigerant × ×× Problem Symptom
Possible Cause T roubleshoot ing
××