Steering Wheel Shaking at High Speeds: What Could Be the Reason?

QuestionsCategory: Ask An ExpertSteering Wheel Shaking at High Speeds: What Could Be the Reason?
Jessica Moore asked 4 months ago
Hello, I'm experiencing an issue with my car and would appreciate any advice. When I drive at speeds over 145 km/h (90 mph), I notice a slight shaking in the steering wheel. This shaking intensifies if I continue driving at these speeds and becomes more pronounced when braking, noticeable even at lower speeds (down to 80 km/h). However, if I slow down to around 120 km/h (75 mph), the shaking gradually subsides, even while braking. I recently bought new wheels, and my mechanic has visually checked my brake rotors and found no issues. He's not available for a more thorough inspection until January. Could this be related to the new wheels or something else? I'd appreciate any insights!
1 Answers
Zack Norman Staff answered 4 months ago
Hi there, Jessica! Your situation sounds quite familiar to a lot of the problems that I've diagnosed and troubleshoot before, and there are a few potential causes for the steering wheel shaking at high speeds:
  1. Wheel Balancing: If the wheels are not properly balanced, it can cause vibration. Since you've recently got new wheels, it's worth getting them checked and rebalanced if necessary.
  2. Brake Rotor Issues: Despite the visual inspection, there might be issues with your brake rotors, like warping or run-out, which aren't easily visible. These can become more noticeable under braking.
  3. Tire Issues: Since you've mentioned installing winter tires, keep in mind that their deep treads can behave differently at high speeds. It's worth checking if they are properly aligned and balanced.
  4. Suspension Components: Less common, but issues with suspension components can also lead to such symptoms.
Since the shaking subsides at lower speeds, it's more likely related to wheel balance or tire issues. However, it's always good to rule out brake rotor problems, especially since the vibration intensifies while braking. We recommend getting a wheel balance check as a first step. If the problem persists, a more detailed inspection of the brake rotors and suspension might be necessary. It's great that you're addressing this early, as prolonged driving with such issues can lead to more significant problems down the line. Feel free to update us with your findings or if you have more questions :-) Zack - Motor Verso Mechanics Team