Do plug tires causes the car to vibrate?

Yes, plug tires can cause the car to vibrate. This is because the plug that is inserted into the tire to repair a puncture is not usually perfectly balanced. This can cause the wheel to wobble, which can in turn lead to vibration in the steering wheel, floorboard, or seat. The vibration may worsen at higher speeds. Additionally, if the plug is not installed correctly, it can leak air, which can cause the tire to go flat and further exacerbate the vibration.