SsangYong Stavic / SsangYong Rodius (2005 year). Service manual — part 108

DI04-25

CHANGED BY

EFFECTIVE DATE

AFFECTED VIN

EXHAUST SYSTEM

DI ENG SM - 2004.9

5. Remove the lower bolts at turbo charger oil return pipe.

Installation Notice

•

Replace the steel gasket with new one.

Tightening torque

25

± 2.5 Nm

6. Remove the lower bolt at turbo charger bracket.

7. Remove the turbo charger bracket bolts.

Installation Notice

Tightening torque

32

± 3.2 Nm

•

Use only 12 1/2" wrench.

8. Remove the bolts and nuts at the turbo charger and the

exhaust manifold.

Installation Notice

Tightening torque

25

± 2.5 Nm

9. Remove the turbo charger assembly.

10. Install in the reverse order of removal.

Notice

•

Replace the steel gasket with new one.

•

To prevent gas leaks, tighten the fasteners with the
specified tightening torques.

DI04-26

CHANGED BY

EFFECTIVE DATE

AFFECTED VIN

EXHAUST SYSTEM

DI ENG SM - 2004.9

EGR VALVE AND VACUUM MODULATOR

1. EGR valve

2. Vacuum modulator

3. Vacuum pump

4. EGR center pipe (EGR cooler)

5. Intake manifold

6. HFM sensor

EGR SYSTEM

General Information

EGR system controls the opening value of EGR valve by transmitting electrical signal (PWM control) from the engine
ECU to vacuum modulator. Also, the engine ECU receives the feedback signals of the amount of air flowing through the
HFM sensor.

Various sensor

Signals

DI04-27

CHANGED BY

EFFECTIVE DATE

AFFECTED VIN

EXHAUST SYSTEM

DI ENG SM - 2004.9

EGR VALVE AND TURBO CHARGER ACTUATOR CONTROL VACUUM
CIRCUIT

Vacuum Modulator

The biggest difference between the vacuum circuit and layout of the HUBER EGR system after K2004 has been intro-
duced is the location of the vacuum modulator for EGR valve control and the function of the other modulator. In case of
EGR equipped vehicle (IDI Engine), it performs the role of controlling the PLA of injection pump whereas, in DI engine, it
controls the turbo charger actuator.

DI engine vacuum modulator

1. EGR valve vacuum modulator

2. Turbo charger booster vacuum modulator

1. Vacuum modulator for EGR valve control

2. Vacuum modulator for injection pump PLA control

From vacuum pump

To EGR Valve

Vacuum pump

To turbo charger

actuator

DI04-28

CHANGED BY

EFFECTIVE DATE

AFFECTED VIN

EXHAUST SYSTEM

DI ENG SM - 2004.9

Vacuum Modulator and Vacuum Hose

Below figures illustrate vacuum hoses and related parts of EGR or turbo where wrong or poor connection of vacuum hose
would display condition of engine irregularity and defect diagnostic codes on the scan tool.

Related with EGR valve

Related with turbo charger actuator

EGR valve

From vacuum pump

Vacuum modulator for

EGR valve control

Turbo charger pressure valve

Vacuum modulator for turbo

charger booster control

From vacuum pump