17-8
Inspection procedures
Inspection: EGR cooler
(1) Exhaust gas passage side
• Fit a cover over the exhaust gas outlet of the EGR cooler, and
connect a hose to the exhaust gas inlet. Then, submerge the
EGR cooler in a container of water. Make sure the coolant pas-
sage is full of water.
• Apply air pressure of 390 kPa {4 kgf/cm
2
} through the hose.
Check that air does not leak from any part of the EGR cooler.
• If there is any abnormality, replace the EGR cooler.
(2) Coolant passage side
• Fit covers over the EGR cooler’s exhaust gas inlet, exhaust gas
outlet, and coolant outlet, and connect a hose to the coolant in-
let. Then, submerge the EGR cooler in a container of water.
• Apply air pressure of 294 kPa {3 kgf/cm
2
} through the hose.
Check that air does not leak from any part of the EGR cooler.
• If there is any abnormality, replace the EGR cooler.
EGR VALVE, EGR SOLENOID VALVE, EGR PIPE AND EGR COOLER
To Next Page
Loading...
