What Causes the Steering Wheel to Suddenly Become Immovable While Driving?
1 Answers
When the steering wheel suddenly becomes immovable while driving, it is usually due to air not being completely expelled from the steering system after fluid leakage or the steering wheel being locked. Additionally, it could also be a normal occurrence. Power steering pump leakage: If the power steering pump operates for an extended period with insufficient oil, it can lead to severe wear, reducing the steering system's performance. Repairing a leaking power steering pump can be resolved by replacing the sealing rings and oil seals, or replacing the entire assembly if necessary. Vehicles equipped with vacuum-assisted power steering will not experience immovable steering after the engine starts unless the power steering pump is damaged. Normal situation: The phenomenon of the steering wheel suddenly becoming stiff and immovable is more common in vehicles equipped with electronic power steering systems. The power steering system uses an electronic assistance form, and repeatedly turning the steering wheel while stationary or at low speeds places an extreme load on the system, easily causing the steering gear to overheat and enter protection mode, resulting in heavy steering. Once it cools down, normal function resumes, which is a normal occurrence. Steering wheel lock: After the vehicle is turned off, if the steering wheel is left at a certain angle, and this angle happens to allow only the key to be turned for ignition without unlocking, the steering wheel may become immovable. The steering wheel automatically locks as a simple anti-theft feature. In this case, gently turn the key with your right hand while lightly turning the steering wheel with your left hand to naturally unlock it.
