Fuel Tank Inspection - Mazda 3 Workshop Manual

Mazda 3 Workshop Manual – Engine + Wiring Diagrams + Diagnostic Trouble Codes
Note
• The two rollover valves built into the fuel tank and check valves (two-way) built into the rollover
valves are inspected in this inspection.
1. Follow "BEFORE SERVICE PRECAUTION" before performing any work operations to prevent fuel
from spilling from the fuel system. (See
2. Disconnect the negative battery cable.
3. Remove the fuel tank. (See
4. Perform the following procedure to verify the fuel tank airtightness.
(1) Plug the fuel pump unit pipe, ports B and C.
(2) Apply a pressure of 3 kPa {22 mmHg, 0.8 inHg} to port A and wait for a while.
(3) Verify that there is no air leakage from the fuel tank.
5. Plug the fuel pump unit pipe and port B.
6. Level the fuel tank.
7. Apply a pressure of 3 kPa {22 mmHg, 0.8 inHg} to port A and wait for a while.
8. With the pressure still applied, verify that there is airflow from port C and the pressure is 0-3 kPa {0-22
mmHg, 0-0.8 inHg}.
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FUEL TANK INSPECTION

BEFORE SERVICE
FUEL TANK REMOVAL/INSTALLATION.)
https://carmanualshub.com/
PRECAUTION.)
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B3E011442110W02