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: Crankshaft position (ckp) sensor inspection
Note
Perform the following inspection only when directed.
Resistance Inspection
1. Disconnect the CKP sensor connector.
2. Measure the resistance between CKP sensor terminals A and B using an
ohmmeter.
If not as specified, replace the CKP sensor.
If CKP sensor resistance is okay, bu ...
Mazda 6 Service Manual: Special tools
ENGINE
Ford SST numbers are collated with Mazda SST numbers in the example below.
Ford SSTs are marked with Ford SST number.
Example
1: Mazda SST number
2: Ford SST number
LUBRICATION SYSTEM
COOLING SYSTEM
FUEL AND EMISSION CONTROL SYSTEMS
CLUTCH
MANUAL TRANSAXLE
AUTOMATIC T ...