How to Replace a Tire Valve Stem in car?

Secure the vehicle on a level surface, making sure the car will not roll or lean when jacked up.Using a tire iron, break loose the wheel lug nuts but do not remove. Raise the vehicle with a floor jack.Secure the vehicle with a jack stand before starting any work. The pinch welds and the frame are the two best locations. Do not rely on the jack to hold the vehicle up while working.

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Remove the wheel lug nuts. Remove the tire and wheel assembly.To deflate the tire, remove the Schrader valve from inside the valve stem.Break the bead of the tire using a tire machine.Remove the bad valve stem.Install the new valve stem.Inflate the tire to seat the bead. Set the tire pressure to manufacturer's recommendations.Re-balance the tire/wheel assembly.

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Re-install tire/wheel assembly on vehicle.Torque lug nuts to manufacturer's specifications.