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Mazda CX-5 Service & Repair Manual: No.27 Fuel Refill Concerns

Mazda CX-5 Service & Repair Manual / Engine / Fuel / No.27 Fuel Refill Concerns


27

FUEL REFILL CONCERNS

DESCRIPTION

  • Fuel tank does not fill smoothly.

POSSIBLE CAUSE

  • PCM DTC is stored.

  • Non-return valve malfunction

  • Pressure control valve (U.S.A. And CANADA)

  • Check valve (Except U.S.A. And CANADA)

  • Improper use of fuel nozzle

  • Inadequate fuel filling speed

WARNING:

  • 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 fuel.

    • Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injuries or death and damage. Fuel can also irritate skin and eyes. To prevent this, always complete “BEFORE SERVICE PRECAUTION” and “AFTER SERVICE PRECAUTION” described in this manual..

CAUTION:

  • Disconnecting/connecting the quick release connector without cleaning it may cause damage to the fuel pipe and the quick release connector. Always clean the quick release connector joint area before disconnecting/connecting, and make sure that it is free of foreign material.


Diagnostic Procedure

STEP

INSPECTION

ACTION

1

VERIFY PCM DTC

  • Retrieve any DTCs using the M-MDS.

    (See ON-BOARD DIAGNOSTIC TEST [SKYACTIV-G 2.0].)

  • Are any DTCs present?

Yes

Go to the applicable DTC inspection.

(See DTC TABLE [SKYACTIV-G 2.0].)

No

Go to the next step.

2

DETERMINE IF MALFUNCTION CAUSE IS NON-RETURN VALVE

  • Remove the fuel-filler pipe.

  • Make sure non-return valve is installed properly.

  • Inspect the non-return valve operation.

  • Is there any malfunction?

Yes

Non-return valve is installed improperly:

  • Reinstall the non-return valve to proper position.

Non-return valve does not operate properly:

  • Replace the non-return valve.

No

    U.S.A. And CANADA

  • Go to the next step.

    Except U.S.A. And CANADA

  • Go to Step 4.

3

DETERMINE IF MALFUNCTION CAUSE IS PRESSURE CONTROL VALVE

  • Inspect the pressure control valve.

    (See PRESSURE CONTROL VALVE INSPECTION [SKYACTIV-G 2.0].)

  • Is there any malfunction?

Yes

  • Replace the pressure control valve.

    (See FUEL TANK REMOVAL/INSTALLATION [SKYACTIV-G 2.0].)

No

Inspect the following:

  • Improper use of fuel nozzle

  • Inadequate fuel filling speed

Repair or replace the malfunctioning part according to the inspection results.

4

DETERMINE IF MALFUNCTION CAUSE IS CHECK VALVE

  • Inspect the check valve.

    (See CHECK VALVE INSPECTION [SKYACTIV-G 2.0].)

  • Is there any malfunction?

Yes

  • Replace the check valve.

    (See CHECK VALVE REMOVAL/INSTALLATION [SKYACTIV-G 2.0].)

No

Inspect the following:

  • Improper use of fuel nozzle

  • Inadequate fuel filling speed

Repair or replace the malfunctioning part according to the inspection results.

5

Verify the test results.

  • If normal, return to the diagnostic index to service any additional symptoms.

    (See SYMPTOM DIAGNOSTIC INDEX [SKYACTIV-G 2.0].)

  • If the malfunction remains, inspect the related Service Bulletins and/or On-line Repair Information and perform repair or diagnosis.

    • If the vehicle is repaired, troubleshooting is completed.

    • If the vehicle is not repaired or additional diagnostic information is not available, reprogram the PCM if a later calibration is available. Retest.


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