ENGINE (J05E)/TROUBLESHOOTING
2–473
1.
Check if soot is obstructing the inlet/outlet of the EGR cooler gas
passageway.
2.
Check if there are foreign substances stuck to the EGR cooler
coolant passageway.
3.
Check the EGR cooler coolant passageway for obstruction due to
deformation or other damage.
4.
Check if coolant is leaking from the EGR cooler.
NO
YES
1.
Check the EGR valve for damage due to incursion of foreign sub-
stances.
2.
Check if the inlet/outlet of the exhaust gas passageway is
obstructed by soot.
NO
YES
8
Inspect the EGR cooler
Was any failure found?
Remove the soot in the inlet/outlet of the gas
passageway, or repair or replace the faulty
part.
Perform "After-inspection work" of INFOR-
MATION section.
Go to step 9.
9
Inspect the EGR valve
Was any failure found?
Remove foreign substances and clean the
passageway.
Replace the EGR valve if it is damaged.
Perform "After-inspection work" of INFOR-
MATION section.
Go to step 10.