What Causes Abnormal Noise When Turning the Steering Wheel While the Car is Stationary?
2 Answers
There are several reasons for abnormal noise when turning the steering wheel while the car is stationary: 1. Excessive steering resistance: When the resistance exceeds the maximum pressure of the steering system, the steering pump will unload and idle to protect both the steering pump and the steering gear. This phenomenon is more noticeable when the steering fluid is dirty, the steering filter is clogged, or there is air in the steering hydraulic system. 2. Slipping of the steering pump drive belt: The steering pump is driven by a belt. If the friction between the belt and the pulley is too low, the belt will slip on the pulley, causing abnormal noise. Possible causes include an overly loose belt, excessive wear on the pulley groove, or poor fit between a new belt and an old pulley.
Last time I turned the steering wheel while stationary, I heard a creaking sound that made me nervous. Generally, this type of noise is common in steering system issues, such as worn steering ball joints or aging rubber bushings. The pressure during stationary turning causes friction and noise, which is less noticeable while driving. Insufficient power steering fluid can also make the pump whine. I recommend first checking the tire pressure and power steering fluid color changes yourself. Try tightening chassis bolts with a wrench to see if there's any looseness, but don't force disassembly to avoid damaging the car. Regular maintenance and applying grease can prevent such issues, like checking front suspension joints every six months. If the problem persists, don't hesitate to visit a professional shop for diagnosis to prevent minor issues from becoming major ones and disrupting your travel plans.