FuelFuel systemPrecautions1. Before repairing fuel system, uncouple battery negative (-) wire at first.
2. When operating on fuel system, do not smoke or repair near fire area.
3. Do not let gasoline come into contact with rubber or leather parts.
4. Take measures to prevent gasoline leaking.(a) Uncouple electric fuel pump joint.
(b) Start engine and turn ignition switch to LOCK position
after the engine flames out.
(c) Uncouple battery negative (-) wire.
(d) Couple electric fuel pump joint.5. Fuel system(a) There will be a great amount of gasoline flowing out
when disassembling high-pressure fuel pipe,
therefore, it is required to observe the following
procedures.
(1) Take measures to prevent gasoline leaking.
(2) Disassemble fuel pipe.
(3) Completely discharge the oil in fuel pipe.
(4) Cover the fuel pipe with plastic bag to avoid pipe
damage and foreign matters entering.
(5) Place a container under the joint.
(b) When removing and installing injection nozzle, always
observe the following precautions.Fuel-Fuel system 14
9. Check compression pressure.(a) Warm up engine.
(b) Remove ignition coil.
(c) Remove spark plug.
(d) Check cylinder compression pressure.
(1) Install cylinder compression pressure gauge on spark plug hole.
(2) Wide open throttle.
(3) Measure the pressure during crankshaft rotating.
Notes:Ensure to use fully charged battery to make the rotating speed of engine reach or exceed 250rpm.When measuring other items, please repeat steps (1) to (3). Finish the measurement as soon as possible.
Compression pressure: 1080kPa
Min pressure: 1000kPa
Difference among cylinders: 100kPa
(4) If the compression pressure of one or more cylinders is too low, inject a small amount of engine oil
from spark plug hole into the cylinder with low pressure, and repeat steps (1) to (3) to check
pressure.If the pressure increases after engine oil is injected, the piston ring of this cylinder or the
cylinder has been worn or scratched.If the pressure is still too low, the valve may be stuck or not fully closed, or the cylinder head
gasket leaks.10. Check CO/HC.(a) Start engine.
(b) Keep the rotating speed of engine at 2500rpm for about 180 seconds.
(c) When the engine is idle running, insert the test bar of CO/HC gauge into exhaust pipe at least 40cm.
(d) Immediately check idle speed and CO/HC concentration at 2500rpm.
Hints:Finish test within 3 minutes.Perform the test under 2 analog states (idle speed and 2500rpm) according to measuring meth-
ods and sequences specified by Emission Regulations.
(e) If CO/HC concentration is not within specified value, perform trouble shooting according to the
following sequences.
(1) Check the function of oxygen sensor.
(2) See possible failure causes listed in the table below, and repair and correct if necessary.Engine mechanism - Engine assembly27
Cooling - Cooling syste2. Check engine coolant level in reservoir.Engine coolant level should be between “Low” and “Full” mark line.
Hint: if the level is too low, check there is leakage and refill coolant to “Full” mark line.3. Check engine coolant quality.(a) Remove radiator cap.
Warning: when the temperature of engine and radiator is high, do not remove radiator cap to
avoid being scalded, because coolant and steam will spurt under high pressure.
(b) Check there is too much rust deposit around radiator cap or at outlet and check there is flake; there
should not be oil in the coolant.
Hint: if coolant is too dirty, it is required to replace coolant.
(c) Install back radiator cap.Inspection1. Temperature regulatorHint: the figure on temperature regulator is the
opening temperature of valve.CoolingCooling systemOn-vehicle inspection1. Check there is leakage with cooling system.Warning: when the temperature of engine and radiator is
high, do not remove radiator cap to avoid be-
ing scalded, because coolant and steam will
spurt under high pressure.
(a) Refill coolant to radiator, and install radiator cap tester.
(b) Preheat engine.
(c) Pump tester to make pressure go up to 118KPa, and check
the pressure falls.
Hint: if the pressure falls, check there is leakage with
hose, radiator or water pump, and check heater,
cylinder body and cylinder head if no external leak-
age is found.66
LubricationLubricating systemOn-vehicle inspection1. Check oil level.During engine warming up and after it flames out for 5 minutes, check oil level, and the level should
be between two marks on oil dipstick at the moment.If oil level is too low, check there is leakage, and
refill oil up to upper mark on oil dipstick.
Note: oil level should not be above upper mark on oil
dipstick.2. Check oil quality.(a) Check there is deterioration, water penetration, color
change or thinning with oil.
(b) If oil quality becomes poor, please replace with new oil.
Hint: oil grades: API, SH, SJ, SG grade oil or ILSAC
multigrade oil. Recommended viscosity is
shown as below.
The temperature increases from left to right.3. Remove oil pressure alerter assembly.(a) Uncouple oil pressure alerter joint.
(b) Install oil pressure alerter with special tool.4. Install oil pressure gauge.Install oil pressure gauge.5. Warm up vehicle.
6. Check oil pressure.Oil pressure:7. Install oil pressure alerter.(a) Coat adhesive on 2nd or 3rd circle thread of oil pressure
alerter.
Adhesive: anaerobic pipe thread sealing adhesive
1545 (Kesaixin 1545).
(b) Install oil pressure alerter with special tool.
Torque: m
(c) Connect oil pressure alerter joint.8. Start engine and check there is leakage.Lubrication - lubricating systemRecommended viscosity (SAE)
Oil pressure alerter
Oil pressure gauge
Adhesive74Temperature range in forecasting next
oil replacement
Steering column--Steering systemSteering column--Steering system
Steering column--Steering systemSteering column--Steering systemSteering column--Steering system
Steering column
Steering system
Note
1. Notes that are necessary for steering system:
(a) It is necessary to change parts correctly, for they will influence the performance of steering system to
make running danger.
2. Notes that are necessary for SRS airbag:
(a) MR7180 assembles with SRS (auxiliary protection system) such as safety airbag at the side of driver
and safety airbag at the side of passenger.
Maintenance does not accord with correct repair step, this might incur SRS explodes suddenly in
repair term to make heavy accident. Before repairing auxiliary protection system (including
disassembling, assembling, check or change parts), it is necessary to read the notes in SRS chapter
(auxiliary protection system).
Malfunction phenomenon table
Following table could help you find the reason of malfunction. And the number in table is only used for indicat-
ing possible preferred sequence. Please check each part by sequence, if necessary, change this part.
Malfunction phenomenon Possible malfunction part Referred page
1.Tyre (tyre pressure is wrong). 109
2.Power steering oil level (low). 200
3.Driving belt (loose). -
4.Wheel alignment (wrong). 87
Steering is heavy 5.Steering system joint (abraded). -
6.Lower control arm ball joint (abraded). 99
7.Steering column (bent). -
8.Power steering oil pump. 203
9.Power steering gear. 205
1.Tyre (tyre pressure is wrong). 109
Return is bad 2.Wheel alignment (wrong). 87
3.Steering column (bent). -
4.Power steering gear. 205
1.Steering system joint (abraded). -
2.Lower control arm ball joint (abraded). 99
Clearance is too big. 3.Middle shaft, sliding fork (abraded). -
4.Front wheel bearing (abraded). 123
5.Power steering gear. 205
1.Power steering oil level (low). 200
2.Steering system joint (abraded). -
Abnormal noise
3.Power steering oil pump. 203
4.Power steering gear. 205
192
Power steering--Poser steering system
Malfunction phenomenon Possible malfunction part Reference page
1.Tyre (tyre pressure is wrong).109
2.
Power steering oil level (low).200
3.
Driving belt (loose).-
4.
Wheel alignment(wrong).87
Steering is heavy5.Steering system joint (abraded).-
6.
Lower control arm ball head (abraded).99
7.
Steering column (bent).-
8.
Power steering oil pump203
9.
Power steering gear205
1.
Tyre (tyre pressure is wrong).109
Return is bad2.Wheel alignment (wrong)87
3.
Steering column (bent)-
4.
Power steering gear205
1.
Steering system joint (abraded)-
2.
Lower control arm ball head (abraded)99
Clearance is too big3.Middle shaft, sliding fork (abraded)-
4.
Front wheel bearing (abraded)123
5.
Power steering gear205
1.
Power steering oil level (low)200
Abnormal noise2.Power steering joint (abraded)-
3.
Power steering oil pump203
4.
Power steering gear205
Malfunction phenomenon table
Use following table to help you find the reason of malfunction, the number in table only show the possible
preference sequence of malfunction, please check each part by sequence, if necessary, change this part.
199
Air conditioner--Air conditioning system
Air conditioner
Air conditioning system
Note
1. Do not dispose Refrigerant in sealed space or near
flame.
2. Wear glasses to protect your eyes.
3. Do not let liquid Refrigerant contact with your eyes
or skin.
If liquid Refrigerant contacts with your eyes or skin:
(a) Wash the contacted part with much water.
Warning: do not knead your eyes or skin.
(b) Spread clean Vaseline on your skin.
(c) Go to doctor or hospital for special cure.
4. Forbid heating it or making it expose the flame.
5. Forbid dropping the Refrigerant tank or shake it
intensively.
6. Do not operate compressor when Refrigerant is lack.
If the Refrigerant in cooling system is lack, it will incur com-
pressor burned out for lacking lubrication. So it is necessary
to avoid.
7. Do not open the high pressure valve of filling instru-
ment package when compressor is working.
If opening the valve at this time, Refrigerant will flow back into
refrigerant tank to incur the tank will break. So only the low
pressure valve could be opened or closed.
8. Do not fill Refrigerant too much.
Too much refrigerant will make many problems such as lack
cooling degree, oil consumption, too hot engine and so on.
Inspection on automobile
1. Check the No.1 pressure switch.
(a) Control for electromagnetic clutch:
Check the function of pressure switch.
(1) Assembly filling instrument package.
(2) Connect the anode lead of OUM meter to No. 4 termi-
nal and connect cathode lead to No. 1 terminal.
(3) Liking that shown in figure. When refrigerant pressure
is changed, check the conduction between terminals.
wrong correct
Low-pressure
sideHigh-pressure
side
Not
conductionCon-
duction
Not
conduction
213