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Q: Tire valve stem base leaks air

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The tire valve stem base is leaking air.

From the description provided, it seems you have quite the leak coming from your Corolla’s tire. I would recommend taking your vehicle, or just the tire if you wish, to the nearest tire shop and have them replace the valve stem on the wheel. Valve stems are made of rubber and are exposed to the elements and drastic temperature changes on an almost daily basis. Over time that rubber weakens and air leaks can develop. This is a relatively quick and simple fix, as long as you have the proper equipment to remove the tire from the wheel and the accessories to perform the repair. Therefore it is important to get this concern to a tire professional for a safe diagnostic.

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