What Causes the Abnormal Noise When Turning the Steering Wheel to the Full Lock Position?
2 Answers
Abnormal noise when turning the steering wheel to the full lock position can be caused by the sound from the turn signal reset mechanism, interference from the clock spring (spiral cable), or noise from the steering column dust cover. Below are detailed explanations: Sound from the turn signal reset mechanism: If the turn signal is activated while turning, the noise may come from the rebound clip of the turn signal's automatic reset mechanism. Interference from the clock spring (spiral cable): Remove the steering wheel's clock spring and apply some grease to see if the noise persists. If it does, replace the clock spring. Noise from the steering column dust cover: Lack of lubrication in the steering column dust cover can cause friction noise. In this case, simply applying some grease inside the dust cover will eliminate the abnormal noise.
Having worked in auto repair for many years, I've found that strange noises when turning the steering wheel to full lock are often caused by the power steering pump humming under full load or worn chassis ball joints and tie rods creating rattling sounds. In hydraulic power steering systems, insufficient or contaminated fluid can amplify pump noise under high pressure. Tire rubbing against wheel arches or aged bushings may also cause squeaking. For DIY inspection, start by checking the power steering fluid reservoir level - top up if leaking. Then shake the wheels to check ball joint play - excessive clearance indicates wear. Simple noises can often be fixed by adjusting belt tension, but deformed suspension components or damaged steering gear require replacement. Full-lock steering puts heavy stress on the system and accelerates wear over time - I recommend avoiding sustained full-lock positions when parking. Address unusual noises promptly to prevent worsening issues that could compromise handling safety. Regular chassis inspections during maintenance cycles are crucial.
