Is It Normal for the Steering Wheel to Make Noise When Turned to Full Lock?

[Miriam]

Whether it is normal for the steering wheel to make noise when turned to full lock depends on the situation: noise from the power steering pump is normal; however, clunking or squeaking sounds when the steering wheel is turned to full lock are abnormal. The causes of noise when the steering wheel is turned to full lock are: 1. Excessive clearance in the steering rack gear; 2. Excessive clearance in the universal transmission device; 3. Damage to the shock absorber pressure bearing; 4. Dirty or deteriorated hydraulic oil, leading to reduced lubrication performance; 5. Damage to the power steering pump. Solutions for noise when the steering wheel is turned to full lock include: 1. Adjusting the clearance in the steering rack gear or universal transmission device; 2. Inspecting and replacing the shock absorber pressure bearing; 3. Promptly replacing the hydraulic oil; 4. Checking the working condition of the power steering pump.

[StRiley]

I've driven quite a few cars, and steering wheel knocking sounds at full lock are no small matter. Generally speaking, this isn't normal and usually indicates issues with steering system components. The most common causes are excessive pressure in the hydraulic power steering pump, air in the system, or insufficient fluid leading to squeaking noises; it could also be caused by worn or loose tie rod ends creating clunking sounds. If you frequently turn the wheel to full lock, it puts excessive load on the system, leading to premature component wear and compromising driving safety. My advice is don't ignore it - promptly check if the power steering fluid level is normal and try topping it up; if the noise is loud or frequent, get the steering mechanism inspected at a professional shop immediately. Develop good driving habits by avoiding full lock turns - leave some margin to protect the components.

[VanHadley]

I found that the abnormal noise when turning the steering wheel to the limit is mostly a warning signal. The steering system is designed to handle pressure, but the noise indicates issues with the power steering pump or lines, such as aging fluid, leaks, or pump wear. I encountered this with my compact car—the squeaking was quite alarming. Ignoring it could lead to steering lag or failure, which is dangerous at high speeds. During daily driving, avoid turning the wheel to the limit to reduce load. Also, regularly check if the tire steering assistance operates smoothly to prevent potential problems.

[MasonRose]

Personally, I think steering wheel knocking sounds when turned to full lock are usually not ideal. The cause could be simple, like power steering system overpressure or loose tie rods, or more complex such as internal wear in the steering gear. Knocking noises indicate friction or gaps, and ignoring them may damage more components. Having driven several car models, I'd recommend avoiding full-lock steering to reduce knocking sounds - it's best to get it checked when possible.