Reasons Why the Steering Wheel Suddenly Becomes Hard to Turn
2 Answers
When the steering pump leaks oil or the power steering pump is damaged, the steering wheel may become hard to turn. Here are the detailed explanations: Steering pump oil leakage: This occurs in the steering system when air is not completely expelled after oil leakage. If the steering pump operates for a long time without sufficient oil, it can lead to severe wear, reducing the performance of the steering system. Repairing a leaking steering pump can be done by replacing the sealing rings and oil seals, or replacing the entire assembly if necessary. Power steering pump damage: Cars equipped with vacuum power steering should not experience difficulty in turning after the engine starts unless the power steering pump is damaged. For systems using electronic power steering, repeatedly turning the steering wheel while stationary or at low speeds places a heavy load on the system, which can cause the steering gear to overheat and become saturated, resulting in heavy steering.
This steering wheel suddenly became as hard as a rock, impossible to turn, which really gave us a scare. I remember once when I was driving that old buddy of mine on a road trip, as soon as I hit the highway, I felt something was off with the steering—it was unusually heavy, almost causing understeer and a collision with the guardrail. Generally speaking, this is a problem with the power steering system, possibly due to low hydraulic power steering fluid or a failing oil pump, leading to insufficient pressure. For cars with electronic power steering, it could also be caused by a weak battery or a faulty sensor, making the motor stop working. Such issues are more common in winter—I've even encountered the strange phenomenon of power steering fluid freezing in cold weather. Another risk is the steering column getting stuck or the belt breaking. If this happens while driving, immediately turn on the hazard lights and pull over—don't force the steering, or you might lose control. Since then, I've made it a habit to check the power steering fluid level every month, and during car maintenance, I always ask the technician to pay extra attention to the steering system to avoid surprises on long trips.