6E3-48 ENGINE AND EMISSION CONTROL SYSTEM (RHZ ENGINE)
EGR SYSTEM
VACUUM HOSE
INSPECTION
Check hose for connection, leakage, clogs and deterioration. Re-
place as necessary.
EGR VALVE
REMOVAL
1) Remove air cleaner outlet hose from turbocharger and MAF
sensor.
2) Remove EGR pipe clamps (1) by using special tool.
Special Tool
(A): 09919-46510/OUT0000110
3) Remove EGR pipe (1) from EGR valve (2) and intake manifold.
4) Remove EGR valve from exhaust manifold (3).
INSPECTION
1) Using a vacuum pump, apply vacuum to diaphragm chamber.
Check for airflow between ports “A” and “B”.
Vacuum: About 24 kPa (180 mmHg) less than:
No airflow
Vacuum other than above:
Airflow
Special Tool
(A): 09917-47910
If not as specified, replace EGR valve.
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