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Why does check gas cap stay on?

Updated: 10/26/2022
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15y ago

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the vent in your fuel tank is not working properly

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Q: Why does check gas cap stay on?
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Gas Cap is not on tight, or the seal leaks and you need to replace the cap.


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What does it mean when the check fuel cap light is on?

It means that the EVAP system senses a leak in the gas cap, or filler neck. The most common problems that cause this, are a loose gas cap, or a defective gas cap.


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