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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
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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
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724. Big fuel consumption
(1) Symptom:
Engine power is ok, but the fuel consumption is big, exhaust pipe discharges black smoke.
(2) Causes and Troubleshooting:
a. When idling, idle speed is high and shall be adjusted;
b. Water temperature sensor fault, service or replace it;
c. Water temperature switch and thermostat fault, repair or replace it;
d. Oxygen sensor fault, repair or replace it;
e. Fuel pressure is big and shall be adjusted;
f. Injector fault (fuel leakage), repair or replace it;
g. Throttle position sensor fault, repair or replace it;
h. Fuel pressure regulator is damaged and shall be replaced;
i. Intake pressure temperature sensor fault, repair or replace it.
5. Unstable idle, liable to be turned off
(1) Symptom:
Engine starts normally, but the idle is unstable regardless of cold or hot status, idle speed is too low and
the engine is liable to be turned off.
(2) Causes and Troubleshooting
a. Poor idle control valve operation, repair or replace it;
b. Low idle speed and faulty or improperly adjusted idle control valve, troubleshoot it;
c. Water temperature sensor fault, repair or replace it;
d. Poor intake system seal, need to be repaired;
e. High voltage spark is too weak, spark plug carbon deposit or electrode clearance is too small, need
to be repaired, cleared and adjusted;
f. Pressure sensor fault, repair or replace it;
g. The compression pressure in the cylinder is too low, need to be serviced;
h. Fuel line pressure is too low, needed to be serviced;
i. Air cleaner is clogged, clean or replace it;
j. Poor injector atomization, fuel leakage, block or big injection variation, need to be repaired;
(3) Diagnosis procedure (Figure 152)
6. Unstable idle at cold status, liable to be turned off
(1) Symptom
During the cold start, idle is unstable and engine is liable to be turned off, the normal idle is recovered
after warming of the engine.
(2) Causes and Troubleshooting
a. Water temperature sensor fault, repair or replace it;
b. idle control valve fault, repair or replace it.
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99Service1. Remove the front wheel
2. Remove the ABS sensor signal wire
3. Remove the propeller shaft fixing nut
(1) Remove the cotter pin of the propeller shaft fixing nut
(2) loosen the propeller shaft fixing nut
4. Separate the steering tie rod
(1) Remove the cotter pin and the nut
(2) Separate the tie rod ball stud pin from the knuckle.
5. Detach the swing arm assembly.
(1) Remove the lower swing arm assembly ball stud pin lock bolt and nut on the knuckle
(2) Detach the lower swing arm assembly ball stud pin from the knuckle
6. Remove the constant velocity propeller shaft assembly Appropriately pull the brake outward, use a
rubber hammer or brass bar to tap the propeller shaft to remove itNotice: Actions shall be taken to prevent the propeller from being dropped off, do not damage
the boot and the oil seal7 Inspect the propeller shaft assembly
(1) Check the tripod constant velocity universal joint for looseness
(2) Check the sliding shaft for smooth movement
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126Chapter 7 WheelSection 1 Tire InspectionInspection1. Check the tires for appearance and proper inflation pressure.
Check for inflation pressure after the vehicle stops for over 15min.
2. Using a dial gauge, check the runout of tire.
The tire runout should be no more than 3.0mm
Notice
(1) You must use specified tire and special wheel rim provided by the authorized service
center, otherwise it may affect the normal safe running of the vehicle and even result in
accidents!
(2) If the wheel rim is damaged, you must go to the authorized service center for service and
replacement! Never use the wheel rim of any other model!
3. Changing tire position
It is recommended to change the tire for each 10000km driving. See the figure for where to change each
tire
4. Inspect wheel dynamic balance
The imbalance should be no more than 8.0g. Otherwise, there will be extra vibration and noise when
driving.Tire module Tire inflationpressure
(Kpa
)
175/65 R14 82H 220Front
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128Chapter 8 Power Steering SystemSection 1 Power Steering SystemPower Steering System DescriptionPower Steering System consists of the steering wheel, steering transmit device, power steering fixed device
and steering pipelines. The steering gear is rack and pinion type.
Major parameters for steering system:
Cautions:
1. Cautions for steering system
Make sure of the correct replacement of parts, incorrect replacement might affect the performance of
the steering system and lead to driving accidents.
2. Cautions for SRS System
This vehicle is equipped with SRS (Supplemental Restraint System), driver side air bag and front passenger
side air bag.
Failure to carry out service operations in the correct sequence could cause the unexpected deployment of
the air bag during servicing, possibly leading to a serious accident.Parameter
3.26
Inner 37.6°
Outer 33.3°
≤
10.5m Item
Steering Wheel total revolutions
Ma ximum Front
Wheel Turn Angle
Minimum Turning Dia me ter
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13311. Complete the service or replace the steering column assembly, the installation procedure is in the reverseorder of the removal
Notice:
(1) after the installation of the ignition lock core, check the steering lock operation: the
steering mechanism lock when the ignition key is pulled out; the steering mechanism
unlock when the key is inserted and turned to ACC position
(2)The torque of the 2 bolts and 2 nuts securing the steer column assembly:
16~26N.m
(3) connect the wire harness into place and make sure the wiring is good
(4) After properly adjust the positions of the combination switch and the steering column
upper and lower cover, tighten the 3 screws attaching the combination switch and the
steering column
(5) Torque of the universal joint yoke and steering gear assembly locking bolt: 22~34N.m
(6) Torque of the 4 set bolts of the dust cover and press plate: 16~26N.m
(7) When installing the steering wheel assembly, align the matchmarks of the steering wheel
and steering main shaft assembly,
Torque of the steering wheel specific inner torx bolt: 40~60N.m
(7) Check the air bag, it is not allowed to use the air bag parts from another vehicle
(8) Check SRS warning lightSection 3 Steering Pipeline ComponentComponents1. Power steering low pressure pipe assembly
2. Power steering high pressure pipe assembly
3. Drive belt
4. Power steering pump with bracket assembly
5. Bolts
6. Washer
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198Chapter 5 Light SystemSection 1 Survey of Light SystemI. COMPOSITION1. Front combination lamp assembly: turn signal lamp, high beam, low beam, head lamp, front position lamp.
2. Rear combination lamp: turn signal lamp, back-up lamp, rear fog lamp, tail lamp, brake lamp, retro reflector.
3. Front fog lamp
4. Side turn signal lamp
5. High mounted stop lamp
6. Rear trunk lamp
7. License plate lamp
8. Interior dome lamp
9. Rear row reading lamp
10. Door lampshield and bulb assemblyII. NOTES FOR REPAIR1. NOTES WHEN REPAIRING ELECTRICAL EQUIPMENTS
(a) Disconnect the battery ground cable.
2. Notes when replacing a headlamp bulb
(a) Before replacing a halogen bulb, turn the headlamp OFF to make it cool.
(b) When installing a new halogen bulb, do not touch the glass part of the bulb with bare hands.
(c) If there is oil stain on the surface of halogen bulb (headlamp and front fog lamp) when the lamps are
turned ON, its service life will be shortened.
(d) Halogen bulbs (headlamp and front fog lamp) have pressurized gas inside and require special handling.
They can explode if dropped to ground.The glass fragments will splash up.
(e) When replacing, make sure to use the bulbs with the same power, same model.
(f) After the bulb is installed, make the lamp holder tight.