What causes a single clunking sound from the front wheels when starting to turn?

[DelHope]

The main reasons for a single clunking sound from the front wheels when starting to turn include: 1. Faults in the steering gear, power steering, or chassis components; 2. Malfunctions in the outer CV joint, shock absorber, or power steering pump; 3. Insufficient or deteriorated power steering fluid; 4. Worn or rusted ball joints; 5. Corrosion of the control arm ball joint. The issues mentioned above can often be resolved by applying lubricant, but there are several types of abnormal noises that require attention: Loose steering tie rod ball joint: This can cause steering wheel vibration, a loose chassis, and premature tire wear, so the steering ball joint should be replaced promptly. Aging or damaged CV joint boot: The engine's power transmission primarily relies on the cooperation of the inner and outer CV joints. The inner CV joint connects to the transmission differential, while the outer CV joint connects to the wheel. Each CV joint is protected by an outer boot, which prevents contaminants from entering and damaging the joint and prevents leakage of CV joint grease. When the protective boot ages or gets damaged, it can lead to CV joint failure, further causing abnormal noises during steering.