Chery SQR 7160 sedan. Manual - part 81

CHERY AUTOMOBILE CO., LTD                   Automatic Transmission Fault Diagnosis Manual 

4HP14 Automatic transm

diagnosis 

Fault diagnosis 

Auto

Fault description 

Actions 

ission fault 

matic transmission initial inspection 

Engine idle abnormal Z   

Adjust the idle speed 

The transmission 
driving on bended road   

has abnormal noise when  Fill in transmission oil   

The transmission does not rotate along with the  Fill in tr
engine  

ansmission oil   

The transmission fluid has bubbles.   

Replace part of the transmission fluid   

The oil pan has a large amount of metal scraps 

Replace transmission assembly   

 

a

 

ion   

Fault an

Fault analysis when the control handle is  t Position P 

Fault descript

alysis   

Actions 
Adjust the 

t 

mechanism  

gear shifter cable or shif

The gear shifter cable or 
shift mechanism is not 
adjusted

 gear shifter  cable or shift 

 

 properly.   

Replace the
mechanism  

Adjust 
cl

 

the parking gear to  Adjust the parking gear to clear 

ear  

The parking system’s 
ci

alled 

incorrectly

Install the p

t 

correctly 

rcuit element is inst

 

arking system’s circuit elemen

Adjust the p

m   

arking interlock syste

The parking interlock has 

b

When nece

parking 

interlock sys

a normal friction   

ssary, replace the 

tem   

Adjust pawl spring   

The parking gear 

uld not engage or is 

disengaged.  

A

When neces

l spring   

co

bnormal pawl spring gap 

sary, replace the paw

S

h fault 

Replace star

tart interlock switc

t interlock switch   

Neutral start switch fault   

Replace neutral start switch   

The engine could not 
be ignited   

A

Adjust shift 

bnormal shift shaft gap   

shaft gap to normal   

It is impossible to  T
shift to back gear   

el

lace 

braking 

ransmission braking 

Rep

ectromagnetic valve fault

electromagn

transmission 

etic valve 

T
in
valve fault   

Replace tra

 

tromagn

ransmission drive rod 

terlock electromagnetic elec

nsmission drive rod interlock
etic valve 

Shift gear without 
stepping on the brake 
pedal   

Brake switch and brake 
rod interlock 
electromagnetic valve  

Repair the brake switch and brake rod 
interlock electromagnetic valve   

 

 

Fault analysis when the control handle is at Position R 

ault description   

Fault diagnosis   

Actions 

 

F

Adjust the shift shifter cable     

The shift shifter cable is not 
adjusted correctly   

When necessary, replace shift shifter cable 

Transmission fluid feed filter 
screen is obstructed   

Replace oil feed filter screen   

No back gear   

Clutch B is damaged   

Replace clutch B   

34 

CHERY AUTOMOBILE CO., LTD                   Automatic Transmission Fault Diagnosis Manual 

 

necessary, replace the transmission 

assembly  

When 

Replace brake D.   

Brake D is damaged. No 
braking on Position 1 and 

ck gear   

When necessary, replace the transmission 
assembly.  

ba
The governor is stuck. 

Replace governor’s coupler   
Replace the 1  gearshift valve inside the 
bottom valve plate in the valve plate 
assembly.  

st

 

1  gearshift valve is locked 
or the back gear is stuck.   

When necessary, replace the transmission 
assembly.  

st

Skid or vibrate 
wh n parking   

Clutch B or D i

e

s damaged   

Replace clutch B or D 

 

 

When necessary, replace the transmission 
assembly 

 

Clutch B oil circuit leaks   

Replace the square ring in the middle valve 
plate 

 

 

When necessary, replac

iddle valve 

plate and oil pum

e the m

 assembly. 

p

 

 

Wh

nsmission 

ass

 

en necessary, replace the tra

embly.  

Shuttle valve D fault

Rep

  the  valve 

pla

   

lace  throttle restric or  within

 

t

te oil circuit chamber   

Vibrate after the 
gear is engaged   

 

When necessary, replace the control valve 
plate assembly   

Fuse fault   

Replace the fuse   

Circuit fault   

Replace the wiring harness 

The back light is 
not on.   

Neutral start switch fault   

Replace the neutral start switch   

 

trol handle is at Position N 

osis   

Actions 

Fault analysis when the con

 

Fault description   

Fault diagn

The engine could not be Starter interlock switch fault   

Replace 

starter 

interlock 

started 

switch  

The shift control mechanism 
or shift cable between the 

Adjust the
control h

control handle and the 

 shift between the 

andle and the 

transmission.  

transmission  

The
forw

 

When necessary, replace the 
shift control mechanism or 
shift cable   

 vehicle moves or creeps 

ard  

 

hen the control handle 

 D 

 

ult description  

Fault diagnosis  

Actions  

Fault analysis w

is at  osition

P

Fa

Converter oil drain valve is always open   

Replace the converter   

Transmission oil feed filter screen is obstructed. 

Replace transmission oil filter screen   
Replace clutch A 

Clutch A fault   

When necessary, replace the transmission assembly.   

Replace 1

st

 gear one-way overrun clutch   

1

st

 gear one-way overrun clutch slips   

When necessary, replace the transmission assembly. 

Adjust the shift control mechanism or shift cable 

Replace 3

rd

-4

th

 shift slide valve spindle on the main valve plate 

No power   

Shift control mechanism or shift cable between 
the control handle and the transmission   

When necessary, replace the control valve plate assembly 

35 

CHERY AUTOMOBILE CO., LTD                   Automatic Transmission Fault Diagnosis Manual 

Dirty governor   

Clean governor valve coupler   
Replace 1

st

-2

nd

 gearshift valve on the control valve plate’s bottom valve 

plate.  

1

st

-2

nd

 gearshift valve is stuck.   

bly.   

It is impossible to shift f
to 2

nd

 gear and 2

nd

 to 1

st

 gear or

When necessary, replace the control valve plate assem
Replace brake C or C’ 

rom 1

st

 
 

1

st

 to 2

nd

 gear.   

Brake C or C’ fault.   

When necessary, replace the transmission assembly 
Clean the governor   

The governor is too dirty.   

When necessary, replace t

  he governor   

Replace the 2 -3  shift valve spindle and spring 

nd

rd

 

It is impossible to shift from 2

nd

 

to 3

rd

 gear and 3

rd

 to 2

nd

 gear.   

2

nd

-3

rd

 gearshift valve is stuck.   

 

When necessary, replace the valve plate assembly
Replace the clutch E   

Clutch E is damaged.   

When necessary, replace the transmission assembly   
Replace the clutch E   

Clutch E’s hydraulic fluid is leaking.   

bly   

It is impossible to shift from 2

nd

 

to 3

rd

 gear.   

When necessary, replace the transmission assem

Replace engine output shaft or worm shaft’s snap ring   
Replace the oil pump mechanism for the whole middle seat   

Engin
stuck.

e’s output shaft or worm shaft’s snap is 
  

When necessary, replace the transmission assembly.   

Middle seat’s hydraulic valve’s protection cap 

Replace the whole middle seat and oil pump mechanism.   

leaks.  

Clean the governor   

The governor is too dirty.   

When necessary, replace the governor   
Replac

It is 

possible to shift from 3

rd

 

e 3

rd

-4

th

 gearshift valve spindle and spring   

im

th

 

When necessary, replace the valve plate assembly.   

to 4 gear or 4

th

 to 3

rd

 gear.   

3

rd

-4

th

 gearshift valve is stuck.   

Replace the brake C’ 

Brake C’ fault when 1

st

-2

nd

 gearshift rod comes 

When necessary, replace the transmission assembly   

to its position.    
The brake band does not have pretension. 

It is 

possible to shift from 3

rd

 

 

Adjust the brake band’s pretension.   
Replace 2

nd

-3

rd

-4

th

 gearshift valve spindle and spring within the gear valve 

assembly’s bottom valve plate.   

2

nd

-3

obstru

rd

-4

th

 upshift valve does not have 

ctions.  

When necessary, replace the valve plate assembly.   
Replace position 3 valve spindle and spring within the bottom valve plate 
of the valve plate assembly.   

im

th

 

Position 3 valve has obstructions   

When necessary, replace the valve plate assembly.   

to 4 gear.   

 

Fault description   

Fault diagnosis   

Actions 

Governor’s bushing is stuck.   

Replace the governor’s connection mechanism.   
Replace the 1
plate assembly

st

-2

nd

 gearshift valve spindle and spring inside the valve 

’s bottom valve plate.   

1

st

 to 2

nd

 gearshift valve is obstructed.   

Replace the valve plate assembly if necessary.   

The brake band is too tense.   

Adjust the brake band.   

Parking at 2  gear 

nd

The brake band could not be loosened.   

Replace the brake band.   

The middle snap ring at the governor’s flange is 

Replace the middle snap ring on the gove

broken.  

rnor’s flange.   

The governor’s bushing is stuck.   

Replace the governor’s connection mechanism.   
Replace 1

st

-2

nd

 gearshift valve inside the bottom valve plate and 2

nd

-3

rd

gearshift valve spindle and spring inside the main valve plate.   

 

1

st

-2

nd

 and 2

nd

-3

rd

 gearshift valve is obstructed.   

Replace the valve plate assembly if necessary.   

Parking at 3

rd

 gear 

The valve cap at the middle flange when the clutch 
B has oil feeds.   

Replace the sealing of the valve cap at the middle flange. 

Replace 2

nd

-3

rd

 gearshift valve spindle and spring. 

2

nd

 –3

rd

 gearshift valve is obstructed.   

Replace the valve plate assembly if necessary.   
Replace the 2

nd

-3

rd

-4

th

 gearshift valve spindle and spring inside the 

bottom valve plate.   

2

nd

-3

rd

-4

th

 gearshift valve is obstructed.   

Replace the valve plate assembly if necessary.   
Replace 1

st

-2

nd

-3

rd

 gearshift valve spindle and spring.   

The speed j mps directly from 
1

st

 to 3

rd

 ge

1

st

-2

nd

-3

rd

 gearshift valve is obstructed at the 1

st

 –2

nd

 part.  

Replace the valve plate assembly if necessary.   

u

ar 

Jumps directly from 1

st

 to 4

th

 

gear 

The engine’s power is cut off.   

Replace the valve plate assembly.   

Clean the governor.   

The governor is too dirty.   

Replace the governor if necessary.   

The governor’s main oil circuit leaks.   

Replace the transmission assembly.   

Shift qualit

s not good at idle 

speed.  

The gearshift valve does not work smoothly.   

Replace the valve plate assembly.   

y i

Poor shift point at wide open 
throttle  

The throttle cable is not adjusted correctly.   

Adjust the throttle cable.   

It is impo

ble to kickdown 

from 2

nd

 to 1  gear.   

The throttle cable is not adjusted correctly.   

Adjust the throttle cable.   

ssi

st

It is impo

ble to kickdown 

from 3

rd

 to 2  gear.   

The throttle cable is not adjusted correctly.   

Adjust the throttle cable.   

ssi

nd

The throttle cable is not adjusted correctly.   

Adjust the throttle cable.   

It is impo

ble to kickdown 

from 4

th

 to 3  gear.   

The governor does not work steadily.   

Replace the governor.   

ssi

rd

The shuttle valve does not work normally.   

Replace the valve plate assembly.   

The main oil circuit’s oil pressure is too high.   

Replace the valve plate assembly. 

Too fast shif

 

The disk is damaged.   

Replace the transmission assembly. 

t when idle 

The shuttle valve does not work normally.   

Replace the valve plate assembly.   

The main oil circuit’s oil pressure is too high.   

Replace the valve plate assembly. 

S l o w   s h i

n   a t   w i d e  

o p e n  

r o t t l e   a n d  

k i c k d o w n .    

The disk is damaged.   

Replace the transmission assembly. 

f t   w h e

t h

The main oil circuit’s oil pressure is too high. 

Replace the valve plate assembly.   

The shuttle valve does not work normally. 

Replace the valve plate assembly. 

The throttle cable is not adjusted correctly.   

Adjust the throttle cable.   

Too fast shift wh  at wide open throttle and 
kickdown.  

The overrun gear control valve is obstructed.   

Replace the valve plate assembly.   

en

Replace 3

rd

-4

th

 valve spindle and spring.   

The cable does not work smoothly at 3

rd

-4

th

 gearshift valve. 

Replace the valve plate assembly if necessary.   

The engine has a too high RPM 

hen upshift from 3

rd

 to 4

th

 gear 

The brake band is not adjusted correctly.   

Adjust the brake band.   

w

36 

CHERY AUTOMOBILE CO., LTD                   Automatic Transmission Fault Diagnosis Manual 

 

The main oil circuit does not have normal oil 
pressure.  

Replace the valve plate    assembly.   

 

The tim

ownshift valve don’t 

work no

Replace the val

.   

e control valve and d

rmally.   

ve plate assembly

Replace clutch A.   

Clutch A is damaged.   

Replace the transmission assembly if necessary. 
Replace 4 -3  gearshift valve sp
spring.  

th

rd

indle and 

Clutch A and 4 -3  gearshift valve cable do
work normally.   

th

rd

 not

.   

 

Replace the valve plate assembly if necessary

The en

 when downshift 

from 4

have normal cavity

pressure.  

s.   

gine has a too high RPM

th

 to 3

rd

 gear.   

The worm wheel does not 

 

Inspect and repair the ventilation pipe

 

Fault ana

Fault description  

lysis when the control handle is a

Fault diagnosis  

Actions.  

t Position 2 

2

nd

 gear brake valve does not work normally.   

bly.   

Replace the valve plate assem

The forced braking does not have good effect 
when downshift from 4

th

 to 3

rd

 gear. .   

The governor does not work normally.   

Replace the governor.   
Replace the brake C’.   

No engine braking.   

The brake C’ is damaged.   

Replace the transmission assembly if necessary.   

 

Fault analysis when the control handle is at Position 1 

Fault diagnosis  

Actions.  

Fault description  

Replace 1

st

 /back gear brake valve spindle and 

spring.  

1

st

 gear/back gear brake valve does not work 

normally.  

Replace the transmission assembly if necessary.   

The forced braking does not have goo
when kickdown from 2

nd

 to 1

st

 gear.   

 

d

ally. 

 effect 

The governor does not work norm

Replace the governor.   
Replace the brake D.   

No engine braking.   

The brake D is damaged. 

Replace the transmission assembly if necessary.   

 

Other common fault analysis

 

Fault diagnosis  

Actions.  

Fault description  

The positioning end of the throttle cable skids.   

Install correctly the cable’s positioning end or replace 
the cable.   

The throttle cable’s bushing has too high friction.   

Replace the throttle cable.   

Throttle cable is difficult to operate.   

The governor’s hydraulic valve is obstructed.   

Replace the valve plate assembly.   
Replace clutch A.   

Clutch A is damaged.   

Replace the transmission assembly if necessary.   
Replace the snap ring or O ring on the worm. 

The  snap ring or O ring on clutch A’s worm is damaged.  

Replace the transmission assembly, if necessary.   
Replace the O-ring on piston A.   
Replace piston A, if necessary.   

Slide or shake when parking.   

O ring on piston A is damaged.   

Replace the transmission assembly, if necessary.   

Shuttle valve A is damaged.   

Replace the valve plate assembly.   

Shuttle valve’s spring is damaged. 

Replace the valve plate assembly.   
Replace clutch A.   

Clutch A is damaged.   

Replace the transmission assembly, if necessary.   

Shake when shifting from neutral to 

rd

th

Replace the valve plate assembly 

drive  

3 -4  gear cable’s ball end is leaking.   

Abnormal noise and slow engagement when the speed 
is higher.  

The oil pan’s oil feed filter screen is obstructed.   

Replace oil feed filter screen.   

Replace the targeted wheel.   

The targeted wheel is damaged.   

Replace the transmission assembly, if necessary.   
Replace the oil pump.   

No drive or back gear, loud noise.   

The oil pump is damaged.   

ission assembly, if necessary.   

Replace the transm

The fluid level is too low.   

Fill oil to the correct level.   

Abnormal noises at all gear positions.   

bly leaks.   

Replace the control valve plate assem

The control valve plate assem

bly.   

Abno mal noises when the oil pump 
sucks the oil 

The oil pan’s oil feed filter screen is obstructed. 

r

 

Replace the oil feed filter screen.   

The pretension on main back output gear’s bearing is not 

 

Adjust the pretension on bearin
output gear. 

adjusted correctly or has been changed. 

g of the main back 

Replace the transmission assembly, if necessary.   
Adjust the pretension on the differential’s bearing.   

Abnormal noises at shift.     

The differential’s bearing pretension isn’t adjusted correctly or has been changed.  

Replace the transmission assembly, if necessary.   

 
 

 

 

 

 

 

 

 

37