CHERY AUTOMOBILE CO., LTD Automatic Transmission Fault Diagnosis Manual
Fault diagnosis:
Fault description Possible causes
Too low RPM when at position D and R The engine does not have enough power.
The one-way clutch of the converter’s guide roller slips.
Too high RPM when at position D The drive gear oil circuit’s pressure is too low.
The drive clutch slips.
The 1
st
clutch does not work normally.
Too low RPM when at position R The back gear oil circuit’s pressure is too low.
h (clutch B) slips.
(clutch D) slips.
The back gear clutc
The back gear brake
Tow high RPM when at position D and R The main oil circuit’s oil pressure is too low.
Oil leaking position inspection
General inspection method:
1. , inspect whether the transmission leaks or not.
2. the suspected part of leaking.
3. ℃.
4.
5. f the engine and find the point of leaking.
6. repair.
Powder inspection method:
1. the suspected part of leaking.
2. , such as dust, on the suspected part of leaking.
3. ℃.
4. f the engine
5. nd find the leaking point along the powder trace.
6. repair.
Once e leaking point is located, you will determine the reason and then repair. Please refer to “Leaking Fault
Maintenance” for analysis of specific problems.
Firstly
Clean thoroughly
Run the transmission to normal operating temperature: 88
Park the vehicle in a clean place and run for a while.
Shut of
Make necessary
Clean thoroughly
Scatter a kind of powder
Run the transmission to normal operating temperature, such as 88
Shut of
Observe the suspected part of leaking a
Make necessary
th
39
To Next Page
Loading...
