Symptom
Poor idle speed, malfunction etc
Symptom
Fail to start5-125 Repair precautions:
1. according to engine requirement, electric fuel pumps with different flows are available, they have the same
appearance, mountable fuel pump may not be exactly suitable, during repair, part number of fuel pump used must
be consistent with original one, wrong replacement is not permitted;
2. in order to prevent fuel pump from damaging, please do not run it in dry state for a long time;
3. in case fuel pump needs to be replaced, please pay attention to clean fuel tank and pipeline and replace fuel
filter.
(2) Simple measuring method:
(Remove joint) turn digital multimeter to ohm position, connect two meter pens with fuel pump pins
respectively, measure internal resistance, it should not be zero or infinite (namely not in short circuit, open circuit
condition).
(Connect joint) connect fuel pressure gauge on sucker, start up engine, run the engine at idle speed, now fuel
pressure of engine should be about 260kPa; unplug fuel pressure regulator vacuum tube, now fuel pressure should
be about 300KPa.
11. Canister control valve
(1) Canister in fuel evaporation control system adsorbs oil vapor from oil tank until saturated. Electronic
control unit controls opening of canister control valve, fresh air and saturated fuel vapor in canister form
regeneration stream, which is led into engine intake pipe again. Electronic control unit changes duty ratio of pulsing
signal to canister control valve solenoid according to different operating conditions of engine, thus controls flow
of regeneration stream. In addition, this flow is also influenced by pressure difference at both ends.
Possible cause
Entering of foreign matter into valve inside results in
corrosion or poor leak tightness etc
Repair precautions:
1. To install, airflow direction must meet the specification;
2. when black granules inside valve body result in malfunction of control valve, and control valve needs to be
replaced, please check the condition of canister;
3. avoid water, oil etc liquids from entering valve as far as possible during repair;
4. in order to avoid transfer of solid-borne noise, it is recommended to install canister control valve suspending
on the hose or use soft rubber to fix.
(2) Simple measuring method:
(Remove joint) turn digital multimeter to ohm position, connect two meter pens with canister control valve pins
respectively, rated resistance at 20°C is 22 - 30 ohm.
12. Ignition coil
(1) When earthing channel of primary winding is connected, this primary winding is charged. Once ECU cut
off primary winding circuit, charging stops, high voltage is induced in secondary winding at the same time, so spark
plug discharges. Ignition coil ZSK 22 (both ends of 2 secondary windings are connected with a spark plug
respectively, so these two spark plugs ignite simultaneously.
Possible cause
Too heavy current leads to burnout, damaged by external force Repair precautions: it is prohibited to use "short circuit ignition testing method" to test ignition function, soEngine EFI System-
Engine EFI System
II. General Repair Principle1. Precaution
(a) Vehicle Protection
In the welding process, make sure to protect the paint, windshield,
seat and carpet with heat-resistant and fireproof covering.
(b) Safety Measures
(1)When pulling the body or crossbeam with drawing device, do
not stand at the position in the same line of the drawing cable,
and make sure to use safe drawing cable.
(2)Before repairing, make sure to check whether there is any
leakage. In case of any hole, remove it immediately.
(3)When welding near to the oil tank, make sure to remove the
oil tank first, and block the oil pipe.
(c) Protective Article
In the repairing process, make sure to wear uniforms, helmet and
safety shoes. In addition, according to the different work types,
wear proper gloves, welding mask, goggle, earplug, face cover,
and dust respirator etc. Wear the protective devices properly as
the table below.Body Repair -Body Damage Forms and requirements For Repair7-11Seat covering Windshield
coveringWrongWrongItem
Dust Respirator
Mask
Goggles
Safety Shoes
Welded Goggle
Earplug
Welded Mask
Welded Gloves Code
A
B
C
D
E
F
G
H
III. Correct & Efficient Repair1. Removal
(a) Measure dimension before removal
Before removal and cutting operation, make measurement as
the body dimension drawings. Make sure to pull the damaged
body or crossbeam with drawing device.
(b) Cutting part
When working on the cutting part, make the cutting in a straight
position without reinforced plate.
(c) Boring/cutting precaution
In the boring or cutting operation, make sure whether there is
any oil pipe or cables etc on its back side, otherwise they may
be damaged.
(d) Removal of ambient components
When removing the ambient components, make sure to adhere
protective tape on the body and disassembly tool to prevent the
body or ambient components being damaged.
2. Installation Preparation
(a) Precaution
When the steel plate to be welded exceeds 3mm
thick, make hole-filling welding with MIG welder.
Tips: If the total thickness exceeds 3mm, the spot can not
provide adequate welding strength.7-12Cutting position
Reinforced plate
Bend positionWrongLarger than 3mmBody Repair -Body Damage Forms and requirements For Repair
If the collision is not serious and the concave belongs to elastic deformation, the plate can be returned to its
original shape by pressing from the inside surface.
For some concaved parts, they can be repaired in a prizing method. The prizing method is a repair method
that needs not to disassemble the parts. According to the degree of deformation, repair the plate by means of various
clearances and the lever principle. As the prizing method doesn't disassemble the parts, it can keep the original
installation quality and improve the work efficiency.
d. Repair for Unsoldering
The unsoldering is mostly caused by the poor fusion between the welding bar and the metal plate. For the
common unsoldering, weld the metal plate again after remove the welding bar accumulated in the welding line.
For the unsoldering of the spot weld, weld the metal plate near the unsoldered point with a single-side spot welder.The new welding point is about 10-15mm from the original point. Before the spot welding, remove the oil dirt andrust in the welding point to ensure the plates are jointed in a good status. For the unsoldering in some hems, after the two plates are jointed, weld the plates spasmodically on the edgesto make the plates joining together. The welding line at every block is about 30mm long. The line space depends
on the original welding space. Another repair method for the unsoldering is plug welding. This method needs CO2 welding. Bore a dia. 6mmhole on the outside plate, and then join the two plates. Weld the hole with the CO2 welding method. In the welding
process, the welding bare shall point to the inner plate and move in a circular manner, which can make the two plates
welded together. After the welding, finish and paint it.Body Repair -Repair After Body Damage7-23
7-32Fig. 5-38 (h) Antirust Position on Body Steel PanelEngine hood
Engine dood hinge
Front door upper hingeRear door upper hinge
Front door lower hingeRear door lower hingeOil tank capDoor Body Repair -Features and Composition of Automobile Body
7-35Section 5 Painting Techniques After Body RepairIn the practical use, various factors may cause painting damage, such as traffic accident, component rust,
premature damage due to bubble, and local color change etc. It is necessary to make repair locally as the following
steps:I. Base Processing (Pretreatment)1. Remove the paint, and remove the coating on the plate work.
2. Cut the edges and corners, and polish the metal plate without paint and the uneven paint at the edge.
3. Blow and clean the dust and dirt, and remove the grease with degreasant.II. Primer Processing1. Apply the self-drying primer on the bare metal surface.
2. Leave the primer drying naturally, or dry it with the infrared radiator.
3. Apply the self-drying oily putty or polyester putty on the plate work surface.
4. Leave the putty drying naturally or artificially.
5. Polish the putty manually to remove the uneven parts.
6. Polish it manually in water to clear the sandpaper lines.
7. Wash the dirt, polish the oil dirt and putty slurry.
8. Wipe the oil dirt on the polishing surface.
9. Cover the part not to be repaired with protective shield or paper.III. Painting Intermediate Coat1. Paint the second primer.
2. Leave the primer drying naturally or dry it.
3. Find out the sand hole or sandpaper line.
4. Polish it manually in wet condition.
5. Wash the part clean, and leave it drying naturally. (The number of putty applying and polishing depends on the
evenness of the surface to be repaired.)IV. Preparing to Paint Surface Paint1. Paste paper on the surface not to be painted.
2. Remove the dust and grease on the local surface paint.
3. Mix the color the same with that of the vehicle's surface paint.
4. Prepare the paint.V. Painting Surface Paint1. Paint the part with fast-drying surface paint 3-4 times and synthetic resin paint 2-3 times.
2. Leave it drying naturally or dry it.VI. Polishing1. After painting, burnish the part with wax to clear the shadow and improve the effect.
2. After painting, tear off the paper and wipe the ground paint.
3. Check the appearance and quality.Body Repair -Painting Techniques After Body Repair
1 Engine right insulator x body JQ184C1025(3 pcs)43~58 43~58
2 Brake pedal with bracket assy. x central cross member Q151B0820(1 pcs)22~29 22~29
3Brake pedal with bracket assy. x brake master cylinder
Q32008(4 pcs)22~29 22~29
with vacuum booster assy.
4 Clutch pedal x central cross member Q1840816(1 pcs)/22~29
5 Clutch pedal x clutch master cylinder Q32208(2 pcs)/22~29
6 Accelerator pedal Q32208(2 pcs)22~29 22~29
7 LH/RH front brake pipe component x HECU controller Null13~18 13~18
8 LH/RH rear brake pipe component I x HECU controller Null13~18 13~18
9Brake master cylinder No. 1 and No.2 pipe component
Null13~18 13~18
x HECU controller, brake master cylinder
10Clutch hydraulic hose assy. x master cylinder oil outlet pipe componentNull13~18 13~18
11 Steering column assy. x universal joint assy.Q151B0820TF2(1 pcs)22~29 22~29
12 (LH & RH) front shock absorber component x body37~45 37~45
13 (LH & RH) rear shock absorber component top nut Q341C10(2 pcs) 22~29 22~29
14(LH & RH) front shock absorber piston rod x front
Q330B12(2 pcs)31~38 31~38
suspension bracket sub-assy.
15 (LH & RH) rear seat belt assy. x body7/16" bolt ( )39~53 39~53
16 (LH & RH) front seat belt assy. x body7/16" bolt( )39~53 39~53
17 (LH & RH) front buckle assy. x body7/16" bolt( )39~53 39~53
18 RR seat belt buckle and lap belt assy. x body7/16" bolt( )39~53 39~53
19 LR buckle assy. x body7/16" bolt( )39~53 39~53
20 Rear axle assy. x bodyJQ14012110TF2(2 pcs)73~103 73~103
21 (LH & RH) rear shock absorber x rear axle JQ320B12(2 pcs)47~56 47~56
22LH & RH brake pipe component III x LH & RH rear
Null13~18 13~18
drum brake with wheel hub assy.
23LH & RH rear brake hose x LH & RH rear brake pipe component IIINull13~18 13~18
24 LH/RH rear drum brake with wheel hub assy. x rear axleMounting nut (8pcs)60~72 60~72
25LH/RH rear brake pipe component I x LH/RH rear brake pipe component IINull13~18 13~18Appendix: Torque Table of the Fasteners for Important AssemblyTorque N.m
No.
JL7132HU
JL7152HUJL7132U
JL7152U
JL7162UAppendix-Torque Table of the Fasteners for Important AssemblyIArea Fastener
front suspension
support sub-assy.
Mounting nut (6 pcs)
26LH/RH rear brake pipe component II x rear brake hose assy.Null13~18 13~18
27 front suspension cross member (front part) x bodyJQ1401280TF2(2 pcs)94~110 94~110
28 Front suspension cross member (rear part) x bodyJQ1401455TF2(2 pcs)110~130 110~130
29 Engine right mount x right insulator JQ319B10(1 pcs)49~60 49~60
30 Engine left mount x left insulator JQ184C1030(2 pcs)43~58 43~58
31 Engine left LH x bodyJQ184B12140(1 pcs)94~110 94~110
32 Engine x automatic transmissionJQ140BD1255TF2(2 pcs)/ 55~70
33 Engine x automatic transmissionJQ140BD1260TF2(1 pcs)/ 55~70
34 Engine x automatic transmissionJQ140C1040TF2(1 pcs)/ 43~58
35 Engine x automatic transmission JQ140C1020(3 pcs) /43~58
36 Engine x automatic transmissionJQ140BD1255TF2(2 pcs)55~70 /
37 Engine x automatic transmissionJQ140BD1045TF2(1 pcs)43~58 /
38 Engine x automatic transmissionJQ140C1040TF2(1 pcs)43~58 /
39 Engine x automatic transmission JQ140C0820(3 pcs)22~29 /
40 Starter x transmissionJQ146C1040TF2(2 pcs)30~60 30~60
41 Engine left bracket x transmission JQ184C1030(3 pcs)43~58 43~58
42 Engine rear bracket x engine JQ184C1025(2 pcs)43~58 43~58
43 Engine rear bracket x engine JQ184C1020(1 pcs)43~58 43~58
44 Compressor bracket x engine JQ146C1035(1 pcs)43~58 43~58
45 Compressor bracket x engine JQ146C1030(3 pcs)43~58 43~58
46Power steering pump with bracket assy. (without reservoir) x engineQ1420825(3 pcs)22~29 22~29
47Power steering pump with bracket assy. (without reservoir) x engineQ14201030(1 pcs)43~58 43~58
48 Oil pump adjustment bracket x engine JQ146C1030(2 pcs)43~58 43~58
49Oil pump adjustment bracket x power steering pump
JQ146C1030(1 pcs)43~58 43~58
with bracket assy. (without reservoir)
50Oil pump mounting bracket x power steering pump with
JQ142C1085(2 pcs)43~58 43~58
bracket assy. (without reservoir)
51Oil pump mounting bracket x power steering pump with
Q40110(1 pcs)43~58 43~58
bracket assy. (without reservoir)
52Oil pump mounting bracket x power steering pump with
Q361C10(1 pcs)43~58 43~58
bracket assy. (without reservoir)
53 Rear insulator x front suspension cross member JQ184C1060(1 pcs)43~65 43~65Appendix-Torque Table of the Fasteners for Important AssemblyIITorque N.m
No.
JL7132HU
JL7152HUJL7132U
JL7152U
JL7162U Area FastenerAppendix: Torque Table of the Fasteners for Important Assembly