NO.28 FUEL FILLING SHUT OFF CONCERNS [MZI-3.7]
NO.28 FUEL FILLING SHUT OFF CONCERNS (MZI-3.7) DETECTION CONDITIONS AND
POSSIBLE CAUSES
2
Remove the fuel-filler pipe.
Make sure the nonreturn valve is installed
properly.
Inspect nonreturn valve operation.
Is the nonreturn valve normal?
z
Inadequate fuel filling speed
No
Nonreturn valve is installed improperly:
z
Reinstall nonreturn valve to proper
position.
Nonreturn valve does not operate
properly:
z
Replace nonreturn valve.
3
z
Verify test results.
{
If normal, return to diagnostic index to service any additional symptoms.
(See
SYMPTOM DIAGNOSTIC INDEX [MZI-3.7]
.)
{
If malfunction remains, inspect related Service Bulletins and/or On-line Repair
Information and perform repair or diagnosis.
z
If vehicle is repaired, troubleshooting completed.
z
If vehicle is not repaired or additional diagnostic information is not available,
replace the PCM.
(See
PCM REMOVAL/INSTALLATION [MZI-3.7]
.)
28
FUEL FILLING SHUT OFF CONCERNS
DESCRIPTION
z
Fuel does not shut off properly.
z
Clogged EVAP pipes
z
Nonreturn valve malfunction
z
Fuel shut-off valve malfunction
z
Fuel nozzle malfunction
z
Fuel nozzle is not inserted correctly.
WARNING:
z
The following troubleshooting flow chart contains the fuel system
diagnosis and repair procedures. Read the following warnings before
servicing the fuel system:
{
Fuel vapor is hazardous. It can easily ignite, causing serious
injury and damage. Always keep sparks and flames away from
2008 Mazda CX-9 Grand Touring
2008 ENGINE Symptom Troubleshooting (MZI-3.7) - Mazda CX-9
Microsoft
Sunday, November 15, 2009 10:10:06 AM
Page 89
© 2005 Mitchell Repair Information Company, LLC.
