Tools and Materials Needed:

• Valve stem removal tool or core remover

• New valve stem (compatible with your wheel type)

• Tire lever or pry bar (optional)

• Pliers (optional)

• Lubricant (like soapy water)

• Air compressor or tire pump

• Jack and lug wrench (if the tire is on the vehicle)

Step-by-Step Instructions:

1. Prepare the Vehicle (if the tire is on the vehicle)

• Park on a flat surface and apply the parking brake.

• Loosen the lug nuts of the wheel slightly, but do not remove them yet.

• Use a jack to lift the vehicle and fully remove the lug nuts, then take off the wheel.

2. Deflate the Tire

• Remove the valve cap from the valve stem.

• Use a valve core removal tool to remove the valve core from the stem. This will release all the air from the tire. Make sure the tire is completely deflated before proceeding.

3. Break the Bead (if necessary)

• Use a tire lever or pry bar to break the bead of the tire away from the rim on the side where the valve stem is located. This step may require a bit of force, but be careful not to damage the rim or tire.

• Alternatively, use a bead breaker tool if available.

4. Remove the Old Valve Stem

• From the inside of the rim, pull out the old valve stem. You can use pliers to grip the stem and pull it out if it's stuck. If the valve stem is rubber, you can cut it off with a utility knife from the inside and push the remaining part through.

5. Install the New Valve Stem

• Lubricate the new valve stem with soapy water or tire lubricant to make it easier to insert.

• Push the new valve stem through the hole in the rim from the inside. Ensure that it sits flush with the rim and that the rubber seal at the base is properly positioned.

• Pull the valve stem through from the outside using pliers or a valve stem installation tool until it is securely seated. Be careful not to damage the stem.

6. Re-seat the Tire Bead (if it was broken)

• Ensure the tire bead is properly aligned with the rim.

• Inflate the tire slightly using an air compressor to seat the bead back onto the rim. You may hear a popping sound as the bead seals; this is normal.

• Inflate to the recommended tire pressure.

7. Reinstall the Tire (if removed)

• If you removed the tire from the vehicle, place it back on the wheel hub.

• Hand-tighten the lug nuts, lower the vehicle back to the ground, and fully tighten the lug nuts in a star pattern to the manufacturer’s specifications.

8. Check for Leaks

• Once inflated, spray soapy water around the new valve stem and check for bubbles that would indicate a leak. If bubbles appear, the valve stem may not be seated properly, or it may be defective.

• If there are no leaks, replace the valve cap.

Additional Tips:

• Check the Tire Pressure Regularly: After changing the valve stem, check the tire pressure regularly to ensure there are no slow leaks.

• Balance the Wheel: If the tire was removed and reinstalled on the rim, you may need to balance the wheel to ensure smooth driving.

• Professional Help: If you’re unsure or uncomfortable performing this task, consider taking the tire to a professional tire shop for valve stem replacement.