What are the causes of steering system failure?

[McPaislee]

Common failures in hydraulic steering systems include heavy steering; steering wheel deviation; self-rotation of the steering wheel, unable to return to the neutral position; severe shaking of the steering wheel; no dead point in steering wheel rotation, etc. The common causes of hydraulic steering system failures are as follows: 1. Insufficient oil suction. The oil tank is short of oil or the oil level is insufficient, causing the oil pump to fail to draw oil. 2. Oil pump failure. Excessive wear of the oil pump, excessive internal leakage, and reduced volumetric efficiency result in the oil pump supplying less oil than the nominal flow rate of the steering gear during system operation, preventing the system pressure from building up. 3. Failure to install the manual steering check valve, debris lifting the check valve steel ball causing poor sealing between the ball and the valve seat; the check valve steel ball falling between the valve sleeve and the valve body ring groove, leading to improper closure of the check valve during power steering, connecting the inlet and outlet oil L4.

[VanCecilia]

Seeing steering system issues, I think it's quite common, so let's start with the power assist system. For older cars, low power steering fluid is the most frequent issue – you'll feel the steering wheel harder to turn when driving, which happens with fluid leaks or pump problems. Loose or worn-out belts slipping can also cause insufficient power assist. As for newer cars, they mostly use electric power steering systems now, so motor or control module failures can easily make the steering stick, especially after long drives when the motor overheats and fails. Tire issues also need consideration – uneven tire pressure or severe wear can make steering unstable. Worn suspension components like tie rods or faulty sensors may cause steering wheel noise or a slipping sensation. Regularly check fluid levels and belts for cracks, and avoid tampering with battery wiring in electric systems. Proper maintenance keeps steering smooth, and maintaining the steering system isn't complicated – the key is catching small issues early to avoid major repairs.

[DeVera]

I've been driving for over a decade. Last month, I experienced unusually heavy steering, as if moving a boulder. After pulling over to inspect, I found the power steering fluid reservoir was nearly empty. The symptoms disappeared after refilling it. Similar situations could also be caused by insufficient belt tension; a loose belt can't effectively drive the power steering. As for electric power steering, a friend once had a motor failure where a short circuit in the control unit left the steering completely unresponsive. Damage to the ball joints in the suspension or loose tie rods can also make steering feel floaty, especially on bumpy roads. Sometimes, improper wheel balancing can cause the steering wheel to vibrate at high speeds. It's advisable to perform a simple steering flexibility test during each maintenance check. The fluid reservoir is located on the left side of the engine bay, and topping it up is straightforward and cost-effective. Don't overlook these small details.

[GrantLee]

Steering failure is directly linked to safety risks, such as loss of control accidents. Common causes include power steering system failure, insufficient fluid, or a broken hydraulic pump, making the steering heavy and difficult to control. Overheating of the electric power assist motor or circuit faults can easily cause sticking or complete failure. Additionally, worn suspension components like stabilizer bars can make the steering wheel unstable, especially increasing the risk of rollovers during turns. Incorrect sensor signals or steering column issues can also misreport steering angles, affecting driving judgment. Regular maintenance is crucial—checking the power steering fluid color and level, belt tension, and absence of cracks can effectively prevent issues. If you notice any abnormalities while driving, pull over immediately and seek professional diagnosis to avoid danger.