Steering & Suspension:
* Worn ball joints: These connect the control arms to the steering knuckles. Worn ball joints can cause a shaking or clunking noise, especially when turning.
* Worn tie rod ends: Similar to ball joints, these connect the steering rack to the wheels. Worn tie rod ends will lead to sloppy steering and shaking.
* Worn control arm bushings: These bushings absorb shock and vibration. Worn bushings allow excessive movement in the suspension, leading to shaking and knocking.
* Worn wheel bearings: These allow the wheels to spin freely. A worn bearing will often create a humming or rumbling noise, and can cause shaking, especially when turning.
* Bent wheel: A bent wheel will cause vibration, and this will be more noticeable when turning.
* Uneven tire wear: Unevenly worn tires, especially if one tire is significantly more worn than others, can cause vibrations, particularly when turning. Check the tread depth and pattern.
* Improper wheel alignment: If your alignment is off, it can cause the car to pull to one side and shake, especially while turning.
Other Potential Causes:
* Brake issues: A sticking caliper or a warped brake rotor can cause shaking, especially when braking while turning.
* Drivetrain problems: Problems with CV joints (constant velocity joints) or the differential can also cause shaking, particularly when accelerating while turning.
* Power steering fluid level: Low power steering fluid can cause various issues, including difficulty turning and shaking.
Troubleshooting Steps (Before Professional Inspection):
1. Check tire pressure: Ensure all tires are inflated to the correct pressure (check the sticker on your driver's side doorjamb).
2. Visually inspect tires: Look for any cuts, bulges, or uneven wear.
3. Check for obvious damage: Inspect the steering components, suspension, and wheels for any signs of damage or wear.
Important: Don't ignore this problem. Continuing to drive with a shaking steering wheel can worsen the underlying issue and potentially lead to a more serious accident. Get it diagnosed and repaired by a qualified mechanic as soon as possible. They'll be able to pinpoint the exact cause and recommend the necessary repairs.
