2008 GEELY MK low oil pressure

2-20 (3) Long time exposure to sun damages interior. So it is better to use covers on upper seat backs, and rear
separation board that are exposed to sun.
8. Maintenance of body exterior
Body exterior is to keep body cleanness and brightness to give the impression of beauty and comfort, and to avoid
rust and abnormal paint peeling off. The key points of body maintenances are:
(1) Wash body using the method below:
a. Wash the dirty things off the body by pressurized water, and then clean the body with
soft cloth of sponge from up to down.
b. Dry body surface with good white cloth. Apply brake pedal several times when driving
after the car is washed to get rid of water in braking system.
c. Do not wipe the body when it is dry. Do not clean paint surface and glass with gasoline,
coal oil, narkosid, strong lye or alcohol.
(2) Cleaning windshield glass
Do not use silicon-bronze radical products. To get better cleaning effects, use special glass cleanser.
(3) Cleaning asphalt on the body
Do not peel the asphalt off from body or bumper, but use special cleanser
(4) Paint
Scratches or slight damages can be fixed with special paint spray. It dries in the air.
(5) Cleaning exterior decoration parts and aluminum parts. Wash with water with soap fluid or cleanser, and wash with clean water. To keep the gloss of painted surface,
wax on the surface after it is dry. (6) Polish and wax the body paint polishing and waxing keeps the body bright and pretty, and protects the paint
as well.
a. Polish in winter. Make sure the vehicle body is absolutely clean and dry before
polishing, polish with fluid or milky wax.
b. Vehicle body must be absolutely dry and clean before waxing. Use waxing tools (soft
table tissue or smooth cotton cloth) to cover the body paint surface evenly with wax.
Check if the vehicle body is covered by wax: spray some water onto the paint surface,
if water drops are formed, that surface is waxed, otherwise, clean the surface and wax
it again. Attention: do not wax under sun, or in cold weather.
Attention
1) When using high pressure washing machine, do not point the washing sprayer to transmission, steering
mechanism and other rubber protection parts, or exterior decoration parts, roof welding lines, heat radiator
or engine compartment.
2) The bottom of vehicle body is made of anti-corrosion material,and has been through anti-corrosion process.
After the vehicle has been running frequently on roads de-frozen with salt for some time, clean engine
compartment and lower part of vehicle body and take some protection actions.Usage and Maintenance of MK Series - Daily Maintenance of MK Sedan

12. Check the compressing pressure (see Figure 1-4).
(1) Warm up and switch off the engine.
(2) Remove the secondary wire.
(3) Remove the spark plug.
(4) Check the compressing pressure in the cylinder.
a.Insert the pressure gauge into the spark plug bore.
b. Throttle widely opens.
c. Rotate the engine crankshaft and measure the compressing
pressure (see Table 2).Figure 1-4Table 2Cylinder compressing pressure (KPa)Pressure difference range of cylinders of this model (KPa)Minimum compressing pressure (KPa)MR479Q MR479QA MR481QA
1250 1320 1360
100
980
Attention:
The electric quantity in the battery should be always enough, and the engine speed should be not less than
250r/min.

Check the compressing pressure in other cylinders in the same way.
Measure as soon as possible.
(5) If the compressing pressure in more than one cylinder is relatively low, fill a bit engine oil to the cylinder
through the spark plug bore, and repeat step a to c to check.
Tip:

If the compressing pressure is increased after the oil is filled, the piston ring or the cylinder may be worn or
damaged.
If the pressure is still low, the valve may be jammed or badly sealed, or the washer may be leaked.
13. Check CO/HC.
(1) Start the engine.
(2) Keep the engine running at a speed of 2500 r/min for about 180s.
(3) During idling, insert the test bar of CO/HC instrument into the exhaust pipe about 40cm depth at least.
(4) Check the concentration of emission of CO/HC at idle speed and at a speed of 2500 r/min respectively.
Tip:

Measure within 3 minutes.
Test the concentration of emission and lambda value of CO/HC at idle speed and at a speed of 2500 r/min
respectively according to GB18352.3-2005 standard.
(5) If the concentration of CO/HC is not up to standard, carry out fault diagnosis by following the steps below.
(1) Check oxygen sensor.
(2) Refer to Table 3 to find possible causes, check and repair.Engine AssemblyEngine Inspection3-4 -

Table 3Section 2 Removal of the Engine Assembly from the Vehicle1. Avoid petrol overflowing (Disconnect from the fuel tank).
2. Remove the front wheel.Figure 1-5Engine AssemblyRemoval of the Engine Assembly from the Vehicle3-5CO
Normal
Low
HighHC
High
High
HighProblems
Bad idle speed
Bad idle speed
(HC reading fluctuates)
Bad idle speed
(Black smoke exhausts)Causes
1. Ignition fault:
Incorrect ignition timing;
Dirt, short circuit, or incorrect spark plug gap.
2. Incorrect valve gap.
3. Suction and exhaust valve leak.
4. Cylinder leaks.
1. Vacuum leaks.
PCV pipe . manifold;
Idle speed control valve;
Brake booster pipeline.
2. Spark lacks since the mixed gas is too thin.
1. Air filter is blocked.
2. PCV valve is blocked.
3. EFI system fails.
ECU fails.
Pressure regulator of fuel oil is out of order.
Water temperature sensor does not work.
Suction pressure/temperature sensor fails.
Injector fails.
The throttle position sensor fails.3. Discharge the coolant completely.
4. Remove the air filter assembly with hose (see Figure 1-5).
(1) Disconnect the joint of the temperature sensor and the wire
plug.
(2) Disconnect the vent duct from the hose of the air filter.
(3) Release the wire clip bolt on the air filter.
(4) Disconnect the hose of the air filter from the throttle body.
(5) Remove 3 bolts and the air filter assemblies.
5. Remove the battery.
6. Remove the fuel pipe sub-assembly.
7. Disconnect the water pipe; disconnect the water outlet pipe of the
heater from the air conditioner pipe.
8. Release the nut and remove the accelerator control cable. -

Chapter 3 Fuel SystemSection 1 Check Fuel System PressureOn-board inspection
1. Check the operation of the fuel pump.
(1) Connect the positive and the negative of the battery to
appropriate connector sockets of the fuel pump (see Figure 3-1).
Attention: Do not start the engine.
If there is pressure present, you will hear that the fuel is flowing.
If there is no pressure present, check the fusible cutout, fuse, EFI
open-circuit relay, fuel pump, ECM (Electronic Control Module) and
circuit joint.
(2) Turn the ignition switch to "OFF".
2. Check the pressure of the fuel.
(1) Check whether the battery voltage is more than 12V.
(2) Disconnect the negative wiring cable from the battery.
(3) Mount a pressure gauge on the fuel input pipe
(see Figure 3-2).
(4) Connect the negative terminal of the battery.
(5) Measure the fuel pressure.
Fuel oil pressure: 265-304kPa
If the pressure is low, check the fuel pipe and connection,
fuel pump, and fuel filter. If the pressure is too high,
replace the regulator.
(6) Start the engine. Measure the fuel pressure at idle speed. The
fuel pressure is 265-304KPa. If the pressure is unsatisfactory, checkFigure 3-1
Figure 3-3 Figure 3-2Fuel SystemCheck Fuel System Pressure3-15the fuel pump, pressure regulator, and injector, and replace if necessary.
(7) After shutting down the engine, check the fuel pressure and
keep the specified pressure for about 5 minutes. The fuel pressure is:
147KPa.
3. The fuel oil pressure regulator (DR) (see Figure 3-3).
Mounting position: On the distributing pipe for fuel.
Faults: Too low or too high fuel pressure, or hard to start.
General causes: Using poor fuel for a long time results in: 1.
strainer blocked; 2. serious leakage caused by particles and impurities.
Other reasons: Man-made mechanical damage, etc.
Maintenance precautions: During maintenance: 1. Never impact the diaphragm element with high pressure
gas; 2. Never clean it with aggressively corrosive liquid; 3. No distortion caused by external force.
Easy measuring method: For the system with oil return, connect a pressure gauge for the fuel on the suction
pipe, start the engine, and run at idle speed. Now, the fuel pressure in the engine should be about 260KPa; pull out
the vacuum pipe of the fuel pressure regulator, and the pressure should be 300KPa approximately.Battery
T conector
Hose
Hose
Fuel Inlet Pipe
Fuel Pipe
Conector -

2. Check the engine coolant quantity in the compensating tank.
The coolant level should be between LOW and FULL.
3. Check the coolant quality.
(1) Remove the radiator cover.
Do not remove the radiator cover when the engine and the radiator are still hot in order to avoid scalding
since the liquid vapor may inject.
(2) Check whether there are excessive deposit and rust or sundries around the radiator cover. The coolant is
not allowed to contact with oil.
(3) Remount the radiator cover.Chapter 5 Cooling SystemSection 1 System Inspection1. Check leakage in the cooling system (see Figure 5-1).
(1) Fill coolant in the radiator, and mount the tester at the radiator
cover port.
(2) Start the engine.
(3) Keep the pump pressure at 118KPa without drop. If the
pressure drops,check whether there is any leakage at the port,
radiator and water pump; if not, check the heating core,
cylinder and cap.Figure 5-1
Figure 5-2
Figure 5-3 Figure 5-4 (4) When the thermostat is at low temperature (lower than 77°C), the valve should close completely.Cooling SystemSystem Inspection3-224. Thermostat
Notes:
The temperature indicated on the thermostat is marked as open
temperature of the valve (see Figure 5-2).
(1) Submerge the thermostat into water and heat gradually.
(2) Check the open temperature of the valve.
Open temperature of the valve: 80-84°C
(3) Check the lift of the valve (see Figure 5-3 and Figure 5-4).
Lift of the valve: 8mm or more at 95°CTester of radiator cap
8.0mm or more -

Chapter 7 Automatic Transaxle AssemblySection 1 Frequent Problems DiagnosisPossible Cause1. There is no scan information.
(1)The diagnosis system fails.
(2)The automatic transmission unit fails.
2. The engine can't start.
(1)The engine system fails.
(2)The fuel pump or torque meter fails.
3. The vehicle cant' runs forwards.
(1)The circuit voltage is improper.
(2)The rear clutch or single clutch fails.
(3)The valve fails.
4. The vehicle can't run backwards.
(1)The low speed brake or front clutch pressure is improper.
(2)The front clutch or low speed reverse gear fails.
(3)The valve fails.
5. The vehicle can't runs forwards or backwards.
(1)The pressure deduction is improper or the transmission signal fails.
(2)There is pressure in the oil pump or the valve body fails.
6. The engine stalls in gear shift.
(1)The engine system or clutch torque meter fails.
(2)The valve body or torque meter fails.
7. The vehicle vibrates and lasts for a long time when the gear is shifted from N to D.
(1)The rear clutch fails.
(2)The valve body clutch fails.
(3)The restrictor switch fails.
8. The vehicle vibrates and lasts for a long time when the gear is shifted from N to R.
(1)The front clutch pressure fails.
(2)The front clutch or valve body fails.
(3)The low speed reserve gear pressure or low speed reverse gear fails.
9. The vehicle vibrates and lasts for a long time when the gear is shifted from N to D/R.
(1)The pressure reduction fails.
(2)The oil pump fails.
(3)The valve body fails.
10. The gear shift impacts.
(1)The servo switch or restrictor position switch fails.
(2)The pressure is decreases abnormally.
(3)The clutch or brake fails.
11. All gear shift points are either too early or too late in the running status.Automatic Transaxle Assembly Frequent Problems Diagnosis3-29 -

The valve body fails.
12. The vehicle shifts before or after some gear points in the running status.
The vehicle switch or parking switch fails.
13. The vehicle has poor acceleration in running.
(1)The clutch or brake fails.
(2)The engine system fails.
14. The vehicle vibrates when it runs at a constant speed or accelerating speed.
(1)The hydraulic torque clutch pressure or hydraulic torque meter fails.
(2)The engine system or valve fails.
15. The acceleration switch system fails.
(1)The acceleration switch or ignition switch fails.
(2)The connector or automatic transmission control unit fails.I. Automatic transmissions Removal1. Put the select lever in "N" position
2. Remove 3 bolts of the flexibility plate (engine side)
3. Remove starter and 2 cooling hoses.
4. Disconnect neutral switch connector and odometer sensor.
5. Loosen the drain screw under the housing to bleed ATF and tighten the drain screw with sealing glue when
assembling. Tightening torque is 29~35N.m
6. Loosen the locking bolt for select lever cable.
7. Remove Drive Shaft LH&RH, using plastic stopper in the oil sealing of differential.
8. Detach suspension bolts.
9. Separate transmission from engine after bolts between engine and transmission remove.II. Automatic Transmission Installation1. Check whether torque converter of the transmission is in the right position, the methods as follows:
Check whether the distance from 3 anchor point of torque converter to front contact face of the transmission
box A 28mm , If the space A<28 mm, try install again. The way to install is that left hand catch hold of the
central anchor column of the converter and make it in alignment with input shaft as near as possible, push the torque
converter in rotating way by right hand until it gets to the bottom to meet the requirement of A 28 mm. (See
figure 7-1 and 2)
2. Install Flexibility plate and central plate on the crankshaft end face with 6 bolts in the direction of Figure 2.
Tightening torque is 45~55 N.m. Turn the longer hole of the Flexibility plate to the lowest of the engine position
in order to connect torque converter.Section 2 Hydraulic Torque Converter and TransaxleAutomatic Transaxle Assembly Hydraulic Torque Converter and Transaxle3-30 -

Power Steering System-
Steering Pipeline Component4-74 (7)Shut down the motor, and check whether there is any foam or
emulsification in the oil storage. If so, discharge the air
repeatedly.
(8)Check the level height, and check whether there is any
leakage.
2. Check the level height.
(1)Park the vehicle on the horizontal road.
(2)When the motor stops running, check the level height in the oil
tank. If necessary, add some more ATF DEXRONII steering
liquid.Replacement1. Discharge the steering liquid in the power steering system.
2. Remove the power steering high & low pressure oil pipes.
3. Loosen the connector screws of the high & low pressure oil pipes on the steering gear assembly, and loosen the
oil pipe clip.
4. Loosen the drive belt.
5. Remove the power steering pump strap support assembly from the motor. Remove the 3 coupling bolts between
the power steering pump strap support assembly and the motor.
6. Install the power steering pump strap support assembly.
Fasten the steering pump strap support assembly on the motor, and tighten the M10 bolt with a torque of 45-
79N.m and M8 bolt with a torque of 16-26N.m.
7. Install the drive belt, and make sure the position is correct.
8. Install the high & lower pressure oil pipes of the power steering gear assembly.
(1) Connect the connector screw of the high and low pressure oil pipe to the steering gauge with a torque of
19-33N.m.
(2) Fasten the low pressure oil pipe on the body front baffle plate with clip.
(3) Connect the connector screw of the high pressure oil pipe to the power steering pump with a torque of
19-33N.m.
(4) Connect the connector screw of the low pressure oil pipe to the oil tank with a torque of 19-33N.
m.
9. Discharge all air in the power steering pipe system, and check the pipe system whether there is any leakage.
10. Check the oil reservoir inner fluid level Tips: The level shall stay between the lowest level and the highest level.
(3) Check whether there is any foam or emulsification. If so, discharge the power steering liquid.NormalAbnormal