1. Install radiator drain plug.

CAUTION:
Be sure to clean drain plug and install with new O-ring.

Radiator drain plug : Refer to CO-17, "Exploded View".

• If water drain plugs on cylinder block are removed, close and tighten them. Refer to EM-63, "Setting".

2. Remove air duct (between air cleaner cover assembly and turbocharger), air cleaner cover assembly and air cleaner body assembly. Refer to EM-26, "Exploded View".

3. Disconnect vacuum hose break booster side, and remove vacuum tube from clamp. Refer to .

4. Disconnect heater hose (1) at position ( ) in the figure.

: Vehicle front

• Enhance heater as high as possible.

5. Fill radiator and reservoir tank with water and reinstall radiator cap.

• When engine coolant over flows disconnected heater hose, connect heater hose, and continue filling the engine coolant.

6. Connect vacuum hose, and install vacuum tube. Refer to .

7. Install air duct (between air cleaner cover and turbocharger), air cleaner cover assembly and air cleaner body assembly. Refer to EM-26, "Exploded View".

8. Run the engine and warm it up to normal operating temperature.

9. Rev the engine two or three times under no-load.

10. Stop the engine and wait until it cools down.

11. Drain water from the system. Refer to CO-11, "Draining".

12. Repeat steps 1 through 9 until clear water begins to drain from radiator.