Does jacking up a car to change a tire damage the car frame?
2 Answers
Jacking up a car to change a tire does not damage the car frame. Generally, the frame will yield or deform only when subjected to a force of at least 2-3 times its own weight. The force exerted by a jack when lifting a car is approximately 1/4 to 1/3 of the vehicle's total weight, which is insufficient to cause frame deformation. Below are the introduction and operational precautions for jacks: Jack operation precautions: When operating a jack, avoid abrupt movements. Lift the car rhythmically and steadily, and lower it slowly. If using multiple jacks simultaneously, ensure synchronized operation. After completing the jack operation, conduct a thorough inspection to check for hydraulic pressure issues and potential hazards. Perform maintenance as needed and store the jack in an appropriate location. Jack introduction: A jack is a compact lifting device that uses a rigid lifting component as its working mechanism to elevate heavy objects within a small stroke range via a top support seat or bottom support claw. Jacks are primarily used in industries, transportation sectors, and for vehicle repairs, as well as other lifting and supporting tasks. They feature a lightweight yet sturdy structure, are flexible and reliable, and can be easily carried and operated by a single person.
As a veteran driver with decades of experience who has changed numerous tires, I can responsibly tell you: as long as the jack is positioned on the correct lifting points, the vehicle's frame will basically remain undamaged. Those lifting points are specifically designed by manufacturers, usually marked with indicators or notches near the frame to bear the entire vehicle's weight. The frame is the skeleton of the whole car—if jacked in the wrong spot, like under the door or at the edge of the chassis, it may deform and compromise structural integrity, affecting long-term driving safety. During my first tire change, I didn’t pay attention and jacked near a suspension component, resulting in slight body denting. Since then, I always check the owner’s manual or confirm the exact position before lifting. Also, ensure the ground is level and the jack is stable—jacking on a slope risks shifting and accidents. In short, correct operation is key, and the risk of damage is nearly zero.
