Chery SQR 7160 sedan. Manual — part 47

CAC Gasoline Engine Maintenance And Servicing Manual

106

5.malfaction, cause and correction

Malfuction

cause

Correction

Fuel pump. fuel
injector IVM523

check for operation by CHECK—UP1

Tachometer
senser.

Check wring, sensor resistance and installation of the sensor.

Dual relays

Check for function, connector connection and blown fuse.

Vehicle cannot start

35——pin
connection

Check for the wiring connection to ECU.

Difficult to start;

idling speed too

high or too low

Engine

idling

speed

control

solenoid.

check for solenoid operation and 4—pin connection by
CHECK—UP1.

warning light on

During idling,

λsensor

Check for the wiring, proper sensor tightening torque and the
sensor heater’s operation

warning light on for

a long time

Diagnosis
warning light

Check for the signal wiring grounding.

warning light

doesn’t turn on

Diagnosis
warning light

The bulb is broken or circuit is open

Rough idling at high

temperature.

Throttle

valve

sensor or water
temperature
sensor

the throttle valve opening angle and water temperature signal
displayed by CHECK—UP1 should match the engine operation.

Rough idling at low

temperature.

coolant
temperature
sensor or intake
air temperature
sensor

The temperature indicated should be in the vicinity of the
ambient temperature.

Idle intermittent

wave

1—throttle
valve body
30MM4

1.check the throttle valve cable for proper adjustment, smooth
movement.
2.if the throttle valve cable is correctly adjusted and may move
smoothly, remove it. Check the throttle valve for resistance by
turning it with a hand (for friction)；
3.display the throttle valve position by CHECK—UP1. If both 1
and 2 are correct and engine speed is still high , while
CHECK—UP1 displays “angle is greater than the allowable
angle”, then the malfunction is positively determined. It is
necessary to replace the throttle valve potentiometer. If the angle
is within the specified range, sensor wiring and connector should
be checked.

Idling speed

fluctuates

continuously at high

temperature.

1.throttle valve

body

1.2 seal
1.3

vacuum

connection

1. check the above item 1,2,3 for intermittent idling speed
functions;
1.2 check the seal between cylinder head and throttle valve body;
1.3check the vacuum lines to the two vacuum passages,
which are of absolute pressure. check the fuel vapor

recirculation

passages, which are connected to the throttle

valve body and intake manifold.
Check the vacuum tube sealing in intake manifold for brake
servo .

Vehicle performance

deteriorates

1—fuel supply
system

1. Check for fuel supply. If fuel pressure is 1±0.1bar, it is ok;
2. If malfunction still remains after upper throttle body
(30mm12) is replaced, with a pressure regulator in the upper
throttle body, check fuel filter and fuel pipes.

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CAC Gasoline Engine Maintenance And Servicing Manual

107

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Index

FORWORD

1

1、Automatic transmission (A/T) assembly description

2

1.1、4HP14 A/T assembly explode view

2

1.2、Transmission Power transfer schematic

3

1.3、Adjusting automatic transmission clearance

4

1.3.1、Adjusting s

hift shaft clearance

4

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1.3.2、Adjusting output gear clearance

5

1.3.2.1、Adjusting main rear output gear clearance

5

1.3.2.2、Adjusting driven shaft clearance

8

1.3.3、Adjusting clutch A clearance

11

1.3.4、Adjusting central seat clearance

12

1.3.5、Adjusting differential pretension

14

1.3.6、Adjusting brake band pretension

16

1.3.7、Adjusting throttle cable

17

1.4、Special tool

18

1.5、Transmission bolt tighten torque

30

1.6、General inspection of transmission

31

2、Disassembling automatic transmission

32

2.1、Disassembling assembly

32

2.2、Removing band brake C

43

2.3、Removing brake D

44

2.4、Removing central seat, brake C and oil pump

45

2.5、Removing clutch B and 2nd gear one-way overrun clutch

48

2.6、Removing clutch A

49

2.7、Removing clutch E

51

2.8、Removing output shaft and 1st gear one-way overrun clutch

52

2.9、Removing governor and speedmeter

54

2.10、Removing transmission case and parking system

58

3、Assembling automatic transmission

64

3.1、Installing transmission case and parking system

64

3.2、Installing band brake C’

74

3.3、Installing brake D and 1st gear one-way overrun clutch

78

3.4、Installing governor and driven shaft

82

3.5、Installing planetary gear mechanism and main sub rear output gear

86

3.6、Installing input shaft and clutch E assembly

93

3.7、Installing clutch A assembly

96

3.8、Installing clutch B and 2

nd

gear one-way overrun clutch

100

3.9、Installing centeral seat, oil pump and brake C assembly. . . . . . . 103
3.10、Insatlling differential and converter housing

109

3.11 Installing speedmeter

112

3.12 Installing control valve plate and torque converter

115

Appendix

The manual of 4HP14 A/T removing & installing CHERY AUTOMOBILE CO., LTD

FOREWORD

This manual covers 4HP14 automatic transmission (A/T) repairing methods, detailed A/T removing &

assembling procedures and information on determining if a transmission needs repairing upon problems.

In addition, we recommend as followings:

1、Throttle cable, gasket, O ring, shim and other vulnerable parts must be replaced after removing.

2、After over 31,250 miles or 50,000 km mileage, all clutches and brakes must be replaced.

3、If the clutch is bumped, it is absolutely necessary to use appropriate cleaning agent to clean torque converter,

oil cooler and oil cooling chamber.

4、When installing transmission, any adjustment should be made according to instructions in section 1.4 of the

manual.

Removing and installing requirements:

1. Use transmission repairing special tools listed in section 1.8 in this manual.

2. Appropriate test bench.

NOTE:

1. Valve body must be repaired by professional person;

2. Valve body must be replaced as an assembly;

3. Transmission oil must be filled as specification.

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