SSANGYONG KYRON 2010.01 Manual page 173

06-4
0000-00
0
Performance of PCV Separator and Oil/Carbon Accumulation in Intake Manifold
It is not possible to separate the blowby gas (oil and unburned gas) completely from the
crankcase.
This problem is related to the engine control and the PCV oil separator is designed to
recirculate approx. 70% of blowby gas.
When servicing the intake system, you can find that oil and carbon is accumulated in the
intake pipe.
It is normal for the vehicle that is normally used in city. Because of the engine control
problem, the 100% of blowby gas cannot be recirculated and EGR and PCV oil separator's
operating ranges are overlapped in normal driving mode. These are the cause of oil and
carbon accumulated in the intake pipe.
When the EGR system is operated, the particulate material in the exhaust gas is drawn into
the intake pipe and the oil not filtered in the PCV oil separator is also drawn into the intake
pipe.
However, unless the particulate material or oil are accumulated excessively in the pipe,
they do not affect the intake/exhaust valve or related components.
On the contrary, if they are removed using carbon cleaner or chemicals, the engine system
may not function properly.
If too much oil or particulate material is accumulated, check the followings:
1. Engine oil level
2. EGR valve (exhaust gas leak and operating condition)
3. Turbocharger (oil/gas leak and operating condition)
4. PCV oil separator (installation condition and leak)
5. PCV oil separator (some functions)
ENGINE LUBRICATION SYSTEM
undefined