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Q: When you take a valve core out, about how long does it take until the tire is flat?

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When you take a valve core out, about how long does it take until the tire is flat?

A: The air will leak out in less than 30 secon...

The air will leak out in less than 30 seconds depending on how big a tire is and the volume and pressure the tire holds. A larger truck tire will take longer than a small low profile tire due to the volume of it they hold.

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