What Causes Steering Wheel Vibration During High-Speed Braking?
2 Answers
High-speed braking steering wheel vibration causes: 1. Steering wheel vibration during high-speed driving may be caused by the vehicle's transmission system. The front wheel alignment angles should be checked and adjusted if necessary; 2. Severe vibration when turning the steering wheel is due to the power steering belt being too loose or too tight, mainly for mechanical hydraulic power steering vehicles. Adjust the belt tension or replace it; 3. When braking at high speed, the steering wheel suddenly vibrates rapidly due to excessive or frequent braking force, causing the brake discs and pads to overheat and deform when cooled. At this time, the brake discs need to be replaced or resurfaced; 4. Steering wheel vibration at a certain speed range during driving is due to inaccurate tire dynamic balance values, causing the steering wheel to vibrate within a specific speed range. Deformed rims, incorrect tire pressure, uneven tire wear, or improperly installed balance weights can all lead to poor wheel dynamic balance.
When the steering wheel shakes during high-speed braking, it's most likely an issue with the brake discs. I experienced this while driving on mountain roads—when I hit the brakes, the steering wheel vibrated like a buzzing phone. This often happens because the brake discs warp after prolonged exposure to high temperatures, creating an uneven surface. When braking, the uneven discs grip the brake pads unevenly, causing vibrations that travel to the steering wheel. Additionally, unbalanced tires or deformed wheel hubs can produce similar symptoms. I remember the shaking disappeared immediately after I replaced the brake discs last time. I recommend going to a repair shop as soon as possible and having a mechanic check the flatness of the brake discs with a dial indicator. If the variation exceeds 0.05 mm, they likely need replacement. Ignoring the issue for too long can also accelerate wear on the suspension system.
