2008 GEELY CK oil pressure

68d. Fuel pressure system abnormal;
e. Idle control valve fault;
f. Vacuum pressure sensor fault;
g. Ignition system fault;
h. The compression pressure in the cylinder is a little lower;
i. Injector leakage.
3. Diagnosis and Troubleshooting
a. Perform self-diagnosis first, check whether there is any DTC, if there is, find the reason and cause by the
DTC;
b.If it is hard for cold start but easy for hot start, check water temperature sensor and intake temperature
sensor for fault;
c. If the engine can not be started quickly in hot condition, the relief of the fuel pressure will be fast, then
repair and replacement shall be made;
d. If the spark is too weak, check high pressure coil, spark plug clearance and spark plug for carbon deposit,
repair or replace them one by one after isolating the problem;
e. Intake and exhaust valve is not completely closed, piston ring failure is likely to cause low compression
pressure in the cylinder, you should carefully repair intake & exhaust valve and seat, or replace them;
failed piston ring shall be replaced.
4. Diagnosis and Troubleshooting for hard starting and trouble shooting procedure. (Figure 149)III. Fuel Pipeline and Circuit Faults for Poor Engine OperationPoor engine operation includes: insufficient power, poor acceleration, poor deceleration, big fuel consumption,
rough idle and Engine overheat.
1. Insufficient Power
(1) Symptom:
Engine operation is normal without load but slow at load, insufficient power when uphill and not improved
even if the accelerator pedal is completely depressed, speed can not be increased and unable to reach the
maximum vehicle speed.
(2) Causes:
a. Air cleaner is clogged;
b. Poor intake system seal;
c. Intake pressure temperature sensor fault;
d. Low fuel pressure;
e. Broken pressure adjustor;
f. Clogged injector or poor atomization;
g. Throttle position sensor fault;
h. High pressure spark is too weak;
i. Improper valve clearance;

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

77IV. Exhaust Pipe Discharges Gas with Abnormal Color (or odor)When there is failure in engine combustion system, the exhaust pipe discharges gas with abnormal color.
1. The discharged gas is thickly black
This is caused by incomplete combustion. Since the mixed air is too thick, the combustion is not complete and
part of the fuel is discharged without combustion, leading to decrease of engine power. At this moment, you
should check fuel pressure regulator, throttle position sensor, injector and ECU system and correct the
problems in time.
2. Exhaust is blue and stinks
This is caused by large amount of oil vapor mixed in the exhaust gas that enters in the cylinder and partici-
pates in combustion. One of the primary reasons is that the piston oil ring is dirty and damaged, and shall be
replaced; another reason may be the failure of valve oil seal or excessive clearance between the valve stem
and guide bush hole resulting in oil entering the combustion chamber for combustion, oil seal or valve guide
bush shall be replaced to resume normal condition.
3. Exhaust is white
This is caused by water or fuel vapor mixed in the exhaust. The primary reason is that cylinder head gasket
is damaged, resulting in slow infiltration of coolant into cylinder and the water vapor entry into the exhaust
pipe after combustion, cylinder head gasket shall be replaced to resume the normal condition.Section 3 Engine Noise Diagnosis and TroubleshootingAbnormal sounds generated during engine operation (e.g. knocking sound, chuckle, hiss, rattle) are called
noise.
Engine noise is primarily generated in valve train, connecting rod piston crankshaft components and other
accessory system. The following description discusses the diagnosis and troubleshooting of the noise gener-
ated in valve train and crankshaft connecting rod mechanism.I. Diagnosis and troubleshooting of the noise in valve trainvalve train consists of intake & exhaust camshaft , valve, valve bushing, tappetand counter gear.
1. camshaft noise
(1) camshaft end play is excessively big (normal intake camshaft : 0.030~0.085mm, exhaust camshaft : 0.
035~0.090mm) , when it exceeds 0.11mm and noise is generated, replace it;
(2) Camshaft bend is another cause for noise; it shall be aligned or scraped. ;
(3) Camshaft journal is excessively worn, resulting in big radial clearance between camshaft and bearing and
noise, replace it;
2. Valve group knock noise
(1) Valve noise is caused by excessive valve clearance, the valve spring seat flange is damaged and shall be
replaced;
(2) Valve spring knock noise is caused by broken valve spring. It shall be replaced;

129Symptom TableThe table below is helpful to find the cause of the problem. The numbers indicate the priority of the likely
cause of the problem. Check each part in order. Repair or replace these parts or assemblies if necessary.On-vehicle inspection1. Check steering wheel free stroke
(1) Stop vehicle and keep the tires straight ahead.
(2) Rotate the steering wheel lightly, check the steering wheel free stroke.
Maximum free stroke: 30mmSymptom Like ly Ca us e
1．
Tire (imprope rly infla te d)
2．
P owe r ste ering fluid (insuffic ie nt)
3．
Front whe e l a lignme nt (inc orre c t)
4．
Ste e ring knuckle (worn)
5．
Swing a rm ba ll stud pin joint (worn)
6．
St e e r ing c olumn ( be nt or binding)
7．
P owe r ste ering pump a ssembly (Worn)
8．
Power steering gear assembly (Fault)
1．
Tire (imprope rly infla te d)
2．
Front whe e l a lignme nt (inc orre c t)
3．
St e e r ing c olumn ( be nt or binding)
4．
Power steering gear assembly (Oil pressure too low)
1．
Ste e ring knuckle (worn)
2．
Swing a rm ba ll stud pin joint (worn)
3．
Inte rmediate sha ft, sliding yoke (worn)
4．
Front whe e l be a ring (w orn)
5．
P owe r ste ering ge a r asse mbly (worn)
1．
P owe r ste ering pump fluid leve l (low)
2．
St e e r ing s ys t e m ba ll joint ( w or n)
3．
Power steering pump assembly (damaged)
4．
Power steering gear assembly (damaged) He avy ste eringPoor returnExcessive
clearance and
play
A bnor ma l nois eMaximum Free Stroke

135Replacement1. Drain the power steering system fluid
2. Remove the power steering high and low pressure pipe
3. Loosen the union screw of the high and low pressure pipe on the steering gear assembly, loosen the pipe
clip.
4. Loosen the drive belt
5. Remove the power steering pump with bracket assembly from the engine
Remove the 4 attaching bolts between the steering pump belt bracket and the engine6.Install the power steering pump bracket assemblySecure the power steering pump bracket assembly to the engine,
The torque of the M10 bolt is 45~79N.m, the torque of the M8 bolt is 16~26N.m7. Install the drive belt, make sure the installation position is correct
8. Install the power steering high and low pressure pipe(1)Connect the union thread of the high and low pressure pipe to the steering gear,
torque: 19~33N.m
(2) Use the retaining clip to secure the low pressure pipe to the cowl baffle panel of the body
(3)Connect the union thread of the high pressure pipe to the power steering pump,
torque: 19~33N.m
(4) Connect the union thread of the low pressure pipe to the reservoir, torque: 19~33N.m
9. Bleed the power steering pipeline system, check the pipeline system for leakage
10. Check the oil reservoir inner fluid level

140Section 2 Brake FluidBleeding1. Fill brake reservoir with brake fluid
Brake fluid: JG4 GB10830
2. Bleed brake pipeline system
(1) Connect the vinyl pipe to the wheel cylinder bleeder plug port
(2) Depress the brake pedal several times, and then loosen the bleeder plug with the pedal held down.
(3) At the point when fluid stops flowing out, tighten the bleeder plug, and then release the brake pedal.
(4) Repeat (2) and (3) until all the air in the fluid has been bled out.
(5) Repeat the above procedure to bleed the brake pipeline of the air for each wheel cylinder.
Notice: Fill brake fluid into the reservoir all the time when bleeding.
3. Check fluid level in reservoir
Check the fluid level and fill fluid if necessary.Symptom Suspe ct a re a
1. Whee l cylinder piston (stuck)
2. Bra ke shoe lining (oily)
3. Disc (scratched)
4. Bra ke shoe s or lining (c ra cke d or distorte d)
5. Whee l hub be a ring (worn or da mage d)
Tire pressure (not as specified)
1. Bra ke shoe lining (da mage d)
2. Insta lla tion bolt (loose )
3. Disc (scratched)
4. Bra ke shoe (ba d in qua lity)
5. Bra ke shoe s lining (oily)
6. Sound isolating shim da mage d
7. Hold spring of bra ke shoe (da mage ) Brake Deviation
Noise from brake

171Chapter 3 Combination Meter SystemSection 1 Circuit Diagram of Combination Meter and Location of
Multi-pin Plug-in TerminalI. CIRCUIT DIAGRAM OF CONBINATION METERSpeed Signal
Ground The Sensor
Revolution SignalWater Temperature SignaFuel Level GaugeTachometer
SpeedometerWater
Temperature Gauge
Feul Level Gauge
OdometerHigh Beam Lamp
Rear Defrost Lamp
Rear Defog Lamp
Backlight
Water Temperature WarningPower Steering
Fuel WarningCharge
Brake Fluid
Oil Pressure
Engine Malfunction
Driver's seat belt
Park Brake
SRS(main)
SRS(sub)

1732. DEFINITION OF MULTIPIN PLUG-IN TERMINALDefinition of Terminal Color of Harness
1Empty
2EPS VG
3Empty
4Empty
5Empty
6Empty
7Empty
8 Combination switch (Position lamp P
9 Speed sensor groun B
10 Speed sensor power sourc RY
11 Speed sensor signal outpu YR
12 Fuel senso B
13 Alte rna tor WR
14 Brake fluid level switc GR
15 Oil pressure switc YG
16 Re a r de frost YB
1 Rear fog lamp Gr
2 Engine ma lfunc tion GY
3 S e a t be lt s w it c h R
4 P owe r sourc e Y
5 Engine coolant temperature senso YW
6 Park switch G
7 Power source groun B
8 Power source groun B
9ABS R
10 SRS (Ma in) RY
11 Engine re volution signa l BBl
12 Live wire (Fire wire) WG
13 High be am la mp + RB
14 Low bea m - RW
15 SRS (Sub) RG
16 Empty Terminal No.
A
B