What Causes Steering Gear Noise?
2 Answers
The causes and solutions for steering gear noise are as follows: 1. Intake manifold leakage: Noise occurs when the engine is idling and intensifies with increased engine speed; exhaust manifold leakage produces a detonation sound during acceleration. Solution: Inspect and repair the intake manifold. 2. Damaged pressure bearing: Damage primarily relates to driving habits. Solution: Avoid turning the steering wheel while stationary, try to steer only after the vehicle is in motion, and return the steering wheel to the center position after parking.
That time when I drove my friend's older SUV, I encountered a squeaky steering wheel issue, especially noticeable when turning. After researching, I found that hydraulic power steering system noises are usually caused by these reasons: the power steering fluid has deteriorated and turned black or is insufficient, causing the pump to run dry; excessive clearance between the internal gears and rack of the steering gear, especially in older cars with over 100,000 kilometers; wear and looseness in the steering tie rod ball joints, which can be tested by shaking the wheel by hand; or loose mounting bracket screws on the steering gear causing resonance noise. The most troublesome issue is internal bearing damage in the steering gear assembly, which requires disassembly for repair. I recommend first checking the condition of the power steering fluid and whether there are any leaks in the hoses. If the steering wheel shakes while turning, it's likely an issue with the steering gear itself, and a professional mechanic should inspect it carefully using a lift.
