1. Loose or unbalanced wheel: If the lug nuts on the wheel are not properly tightened or the wheel is unbalanced, it can cause the tire to wobble.
2. Bent or damaged wheel: A bent or damaged wheel can cause the tire to go in and out as it rotates.
3. Worn or damaged tire: A worn or damaged tire can cause the tire to go in and out as it rotates.
4. Uneven tire pressure: If the tire pressure is not even, it can cause the tire to go in and out as it rotates.
5. Faulty suspension components: If the suspension components, such as the shocks, struts, or ball joints, are worn or damaged, it can cause the tire to go in and out as it rotates.
6. Worn or damaged wheel bearing: If the wheel bearing is worn or damaged, it can cause the tire to go in and out as it rotates.
7. Driveline problems: Driveline problems, such as a worn or damaged axle, can cause the tire to go in and out as it rotates.
If you notice that a tire is going in and out when driving, it is important to have it inspected by a qualified mechanic to determine the cause and have it repaired.