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HOMESERVICE MANUALSMAZDA20086 S SPORT, 4D HATCHBACK, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 560 (SYMPTOM TROUBLESHOOTING [ENGINE CONTROL SYSTEM L3))NO. 13 KNOCKING/PINGING-ACCELERATION/CRUISENOTES
2008 Mazda 6 s Sport, 4D Hatchback, Standard

No. 13 Knocking/Pinging-Acceleration/Cruise: Notes

2008 Mazda 6 s Sport, 4D Hatchback, StandardSECTION Notes
WARNING: This page is about a different car, the 2007 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.
POSSIBLE CAUSE DESCRIPTION

13 KNOCKING/PINGING - ACCELERATION/CRUISE
DESCRIPTION  Sound is produced when air/fuel mixture is ignited by something other than spark plug (e.g., hot spot in combustion chamber).
POSSIBLE CAUSE 
  • Engine overheating due to cooling system malfunction
  • ECT sensor malfunction
  • IAT sensor malfunction
  • MAF sensor malfunction
  • Knock sensor malfunction
  • Erratic signal from CMP sensor
  • Inadequate engine compression
  • Inadequate fuel pressure
    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 REPAIR PROCEDURE" and "AFTER REPAIR PROCEDURE" described in this manual.

      (See BEFORE REPAIR PROCEDURE ).

      (See AFTER REPAIR PROCEDURE ).

    RENDER: 1.0x

    NO RELATED

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    When to See a Mechanic

    Stop DIY work and contact a certified mechanic immediately if any of the following apply:

    • • You smell fuel, burning insulation, or see smoke.
    • • Brakes feel soft, pull hard to one side, or make grinding noises.
    • • The engine overheats, stalls repeatedly, or misfires under load.
    • • You are missing required tools, torque specs, or safe lifting equipment.
    • • You are not confident in the next step or safety outcome.