ARIA

ENGINE

151

2.1.8.2.3 MAINTENANCE

2.1.8.2.3.1 ON VEHICLE PROCEDURE

A. EGR COOLER MODULE

REMOVAL

1. Drain the coolant. Refer coolant replacement pro-

cedure in Engine “On Vehicle Repair ‘section

2. Open the bonnet and remove the engine cover.

3. Disconnect the electrical connection of the EGR

valve.

4. Loosen and remove the bolts

(1)

to disconnect

the EGR pipe

(2)

from the EGR cooler assembly.

NOTE

The EGR pipe is bent in the intake adaptor pipe and

cannot be removed. Do not attempt to remove it

without the intake adaptor pipe.

5. Disconnect the hose

(1)

connecting the vacuum

solenoid valve

(3)

to the By-pass actuator valve

(2)

6. Remove the spring band clamp

(2)

and discon-

nect the hose

(1)

connecting EGR coolant inlet

to the coolant outlet pipe.

7. Remove the spring band clamp

(2)

and discon-

nect the hose

(1)

connecting EGR coolant outlet

to the coolant return line.