Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSMAZDA20086 S SPORT, 4D HATCHBACK, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 603 (EMISSION SYSTEM (L3 WITH TC))CHECK VALVE INSPECTION
2008 Mazda 6 s Sport, 4D Hatchback, Standard
Check Valve Inspection
2008 Mazda 6 s Sport, 4D Hatchback, StandardSECTION Check Valve Inspection
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.
- Remove the check valve. (See EVAPORATIVE EMISSION (EVAP) CONTROL SYSTEM REMOVAL/INSTALLATION ).
- Blow through the valve and verify that air flows as specified.
- If not as specified, replace the check valve.
Specification
AIRFLOW CONDITION SPECIFICATIONCondition Airflow Air applied from port B to A Yes Air applied from port A to B No(1) (1) The check valve is normal if the aeration to port B is 3.5kPa/min {0.03 kgf/cm 2 min, 0.5 psi/min} or less when 130 kPa {1.32 kgf/cm 2 , 18.9 psi} is applied to port A.
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.