SsangYong Rodius (2013 year). Manual — part 59

04-4

2. INSPECTION

1) Troubleshooting

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.

04-5

1719-00

3) Troubleshooting Sequence

The basic checks for intake system are as follows:

Basic Checks for Intake System

▶

Make sure to replace or clean the air cleaner

element periodically. Otherwise, engine will be

derated or work abnormally because of low

intake air volume.

Unlike the fuel system, which is a closed

circuit, the intake system is an open circuit

system. Therefore any malfunction may occur

due to dust and dirt.

Most of the connections consist of hoses so the

system cannot withstand high temperature and

pressure. Also it can be deformed or loosened

easily because it is a clamp mounting system.

Thus, when checking the engine, basic

inspections, such as tightened status check and

visual inspection for hose, etc., should be carried

out in advance.

Other Checks for Intake System

▶

If the intake system is free of any faults,

check for EGR and PCV oil separator.

04-6

1. OVERVIEW

The intake system for D20DTR engine is equipped with a throttle body which includes a flap. This flap

is controlled by an electrical signal to cut off the intake air entering to the engine when the ignition

switch is turned off. Because of this, the shape of the intake manifold has been changed and improved

HFM sensor is newly adopted to control the intake air volume more precisely.

2. COMPONENT

2330-01

Intercooler assembly

2313-15

HFM sensor

HFM sensor, version 7

*For more information, refer to Chapter "Engine

Control".

2313-01

Air cleaner assembly

04-7

1719-00

1719-01

Intake manifold

Passage for variable swirl valve and for intake

air

1719-16

Electric throttle body

* For more information, refer to Chapter "Engine

Control".

1719-02

Swirl control valve

Operating variably in accordance with the

engine load and rpm.* For more information,

refer to Chapter "Engine Control".