What Causes the Power Steering Light to Illuminate?
2 Answers
Reasons for the power steering light illuminating: 1. The power steering system contains a large amount of air, causing abnormal car steering; 2. Foreign objects in the steering hydraulic pipeline cause the steering pump flow control valve to stick; 3. Loose connections in the power steering system, leading to steering fluid leakage; 4. Excessive wear of the steering gear piston cylinder, poor oil seal sealing, or control valve sticking or damage. Solutions: 1. Inspect the steering gear, steering pump control valve, oil cup filter, steering fluid, and clean the entire power steering system; 2. Check tire pressure and refill if low; 3. Inspect all connection points of the oil pipes and tighten the connection bolts; 4. Replace the oil pipes, power steering pump, or power steering gear.
Last time the power steering light in my car suddenly came on, and I started researching the possible causes. Common issues include low power steering fluid level—if the fluid in the reservoir drops below the minimum mark, it can easily trigger the warning. Another possibility is a system leak, where aging hoses or pump seals cause fluid loss. The power steering pump itself could also be faulty, as a loose or broken belt may prevent the pump from functioning properly. In some newer vehicles, a faulty sensor might falsely trigger the light. A lit power steering light is no small matter—the steering wheel can become unusually heavy, especially during low-speed turns, increasing the risk of losing control or accidents. I recommend first checking the fluid level yourself and adding specialized power steering fluid if needed, then observing whether the light turns off. If the issue persists, it’s essential to visit a professional repair shop for a comprehensive diagnosis—don’t delay, as safety comes first.
