Why Does the Steering Wheel Make a Buzzing Noise When Turned to the Limit?
3 Answers
The buzzing noise when turning the steering wheel is related to the shock absorber's pressure bearing, and the damage to the pressure bearing is largely influenced by the driving technique. If the abnormal noise comes from the steering wheel, it is highly likely caused by the clock spring inside the steering wheel. Precautions for Steering Wheel Usage: 1. Avoid turning the steering wheel while the vehicle is stationary; try to steer only after the vehicle starts moving. 2. After the vehicle is parked, return the steering wheel to the central position to prevent unnecessary load on the suspension system and tires. 3. When making a U-turn, try to avoid turning the steering wheel to its limit. 4. During use, try to avoid these incorrect driving methods to extend the service life of the pressure bearing.
I've been in the auto repair industry for many years, and the humming sound when turning the steering wheel to full lock is quite common, mainly due to issues with the hydraulic power steering system. Most older models use hydraulic power steering, and when the steering is turned to its limit, the pressure in the power steering pump increases. If the power steering fluid is insufficient or deteriorated, the pump will make a humming noise. Additionally, internal wear in the power steering pump or steering gear can also cause this, such as increased component gaps, making the noise more noticeable under high pressure. I've seen many car owners ignore this minor issue, only for the noise to worsen over time, even leading to heavier steering and affecting driving safety. It's recommended to promptly check the power steering fluid, maintain it at the proper clean level, and perform regular maintenance. Don't wait until steering becomes difficult to act—by then, you might have to spend a lot on replacing parts. Getting a professional inspection at a specialized shop is the most reliable approach.
For a while, I kept hearing a buzzing sound when turning in the garage while driving, which was quite annoying. I asked a knowledgeable friend, and he said it's usually caused by the hydraulic power steering system. When the steering wheel is turned to the limit, the pressure spikes, and if the power steering pump oil is insufficient or dirty, it can make noise. It could also be due to a loose motor or belt—the buzzing sound is a warning that trouble is coming. You can try checking at home: after parking, open the engine compartment and listen near the power steering pump. If the noise is louder, you might need to add power steering fluid or clean it. Don’t forget to check tire wear, as extreme turning can sometimes cause overlapping friction sounds. Safety first—don’t delay repairs, as small sounds can turn into big problems.
