FUEL TANK INSPECTION [MZI-3.7]

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Note

•  This inspection is for three rollover valves integrated in the fuel tank.

1.  Follow “BEFORE SERVICE PRECAUTION” before performing any work operations to prevent fuel from spilling from the fuel system. (See BEFORE SERVICE PRECAUTION [MZI-3.7].)

2.  Disconnect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [MZI-3.7].)

3.  To disconnect the fuel pump unit connector, remove the following parts:

(1)  Second-row seat (LH) (See SECOND-ROW SEAT REMOVAL/INSTALLATION.)

(2)  Edge cover (See LONG SLIDER REMOVAL/INSTALLATION.)

(3)  Long slider cover (See LONG SLIDER REMOVAL/INSTALLATION.)

(4)  Rear heat duct No.3 (See REAR HEAT DUCT COMPONENT REMOVAL/INSTALLATION.)

(5)  Disconnect the fuel pump unit connector.

4.  Disconnect the quick release connector and the fuel pump unit connector. (See QUICK RELEASE CONNECTOR REMOVAL/INSTALLATION [MZI-3.7].)

5.  Disconnect the joint hose. (See FUEL TANK REMOVAL/INSTALLATION [MZI-3.7].)

6.  Disconnect the evaporative hose. (See FUEL TANK REMOVAL/INSTALLATION [MZI-3.7].)

7.  Disconnect the breather hose. (See FUEL TANK REMOVAL/INSTALLATION [MZI-3.7].)

8.  Remove the fuel tank with the fuel pump unit. (See FUEL TANK REMOVAL/INSTALLATION [MZI-3.7].)

9.  Perform the following procedure to verify the fuel tank airtightness.

(1)  Plug the fuel pump unit pipe, ports B and C.

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(2)  Apply a pressure of 3 kPa {23 mmHg, 0.9 inHg} to port A and wait for a while.

(3)  Verify that there is no air leakage from the fuel tank.

•  If there is airflow, replace the fuel tank.

10.  Remove the port B plug.

11.  Level the fuel tank.

12.  Apply a pressure of 3 kPa {23 mmHg, 0.9 inHg} to port B and wait for a while.

13.  With the pressure still applied, verify that there is airflow from port A and the pressure is 0—3 kPa {0—22 mmHg, 0—0.8 inHg}.

•  If malfunction, replace the fuel tank.

14.  Apply a pressure of –0.5 kPa {–3.8 mmHg, –0.1 inHg} to port B and wait for a while.

15.  With the pressure still applied, verify that there is airflow from port A and the pressure is –0.5—0 kPa {–3.8—0 mmHg, –0.2—0 inHg}.

•  If malfunction, replace the fuel tank.

•  If there is airflow, place the fuel tank upside down.

16.  Apply a pressure of 3 kPa {23 mmHg, 0.9 inHg} to port B and wait for a while.

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17.  With the pressure still applied, verify that there is no airflow from port A.

•  If there is airflow, replace the fuel tank.

18.  Complete the “AFTER SERVICE PRECAUTION”. (See AFTER SERVICE PRECAUTION [MZI-3.7].)