Will fix a flat cause the car to shake?

Using a fix-a-flat product can sometimes cause a car to shake if the sealant is not evenly distributed within the tire or if the tire is damaged beyond repair. Uneven distribution can lead to imbalances, resulting in vibrations while driving. Additionally, if the tire is not properly inflated after using the product, it may exacerbate the shaking. It's essential to ensure proper installation and follow up with a professional inspection.