Mazda 6 Service Manual: Nonreturn valve inspection
1. Remove the fuel pump unit. (See FUEL PUMP UNIT REMOVAL/INSTALLATION.)
2. Siphon the fuel from the fuel tank.
Note
- Nonreturn valve is integrated in the fuel tank.
- The nonreturn valve is normally closed by the spring force.
3. Verify that the nonreturn valve is closed.
- If the nonreturn valve is stuck open and dose not open even when pulled up by a finger, replace the fuel tank.
Fuel tank inspection
Caution
Disconnecting/connecting the quick release connector without
cleaning it may possibly cause damage to the fuel pipe and quick release
connector. Always clean the quick release connec ...
Fuel line pressure inspection
Warning
Fuel line spills and leakage are dangerous. Fuel can ignite and
cause serious injuries or death. Fuel can also irritate skin and eyes. To
prevent this, always complete the BEFORE REP ...
Other materials:
Mazda 6 Service Manual: Scheduled Maintenance (Mexico)
Follow Schedule 1 if the vehicle is operated mainly where none of the following
conditions apply.
Repeated short-distance driving
Driving in dusty conditions
Driving with extended use of brakes
Driving in areas where salt or other corrosive materials are used
Driving on rough or muddy ...
Mazda 6 Service Manual: Service cautions
HANDLING INSUFFICIENT REFRIGERANT LEVEL
If an insufficient refrigerant level is detected at troubleshooting,
do not charge (add) the refrigerant. Because an accurate amount of
refrigerant cannot be determined from the pressure indicated on the manifold
gauge, never charge the refrigeran ...