Diagnosis Procedure
1.
CHECK EGR PASSAGE
Check the following parts for clogging and damage.
EGR tube
EGR hose
EGR cooler
Is the inspection result normal?
.
Repair or replace malfunctioning part
2.
CHECK EGR VOLUME CONTROL VALVE VISUALLY
Remove EGR volume control. Refer to
Exploded View
.
Check if foreign matter is caught between the EGR volume control valve and the housing.
Is the inspection result normal?
.
Repair or replace malfunctioning part.
3.
CHECK EGR COOLER VISUALLY
Remove EGR cooler. Refer to
Exploded View
.
Check if foreign matter is caught between the EGR cooler and the housing.
Is the inspection result normal?
INSPECTION END
Repair or replace malfunctioning part.