Mazda 3 Service Manual: Vacuum Hose Removal/Installation [Mzr 2.0, Mzr 2.5]

1. Remove the battery and battery tray..

2. Remove the vacuum hose from the vacuum hose clip.

3. Insert a thin flathead screwdriver at the point indicated by the arrow in the figure, push the ring down and disconnect the vacuum hose from the intake manifold.

4. Move the vacuum hose as shown in the figure.

5. Disconnect the vacuum hose connector from the power brake unit while pressing the tabs of the vacuum hose connector.

6. Remove the vacuum hose.

7. Install in the reverse order of removal.

8. Insert the vacuum hose connector to the power brake unit.

9. Verify that the vacuum hose is inserted so that the connector contacts the power brake unit flange.

10. Verify that the vacuum hose is inserted so that the joint contacts the intake manifold ring.