SSANGYONG Rodius 2012.07 Manual page 232

04-4
2. INSPECTION
1) Troubleshooting
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When Abnormal Noises are Heard from the Engine Room
For the vehicle equipped with DI engine, if a learning noise occurs in each range or other
noises occur, the major cause of it is a faulty turbocharger assembly. But an interference
issue, poor tightness or loose in the intake and exhaust system also can cause those noises.
This is mainly because the operator didn't follow the instruction exactly when reconnecting
the intake hoses and pipes which were disconnected to check the system or replace the air
cleaner. If the intake system is free of any faults, check the EGR and PCV oil separator
connected to the intake system.
The figure may be different from the actual engine. Therefore, read thoroughly below before
replacing the parts.
2) Abnormal Noise Caused by Poor Tightness of Intake System
When the DI engine is running, the air entered into the engine flows in the sequence as shown
above. If high intake pressure is applied to the loose or damaged part, a whistling noise may
occur, the intake air volume is measured incorrectly or the engine power is derated.