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 procedure 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 disconnect the hose (1) connecting EGR coolant inlet to the coolant outlet pipe. 7. Remove the spring band clamp (2) and disconnect the hose (1) connecting EGR coolant outlet to the coolant return line.
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