Can You Still Drive If the Steering Wheel Loses Power Assistance?
3 Answers
It is not advisable to drive when the steering wheel power assistance fails; it is recommended to slow down and stop promptly for comprehensive maintenance and inspection. The function of the automotive steering system is to control the vehicle's direction according to the driver's intention, making it crucial for driving safety. Therefore, components of the steering system are referred to as safety-critical parts. Below is additional information: Steering wheel power assistance: Power steering assists the driver in reducing the effort required to turn the steering wheel, and it also plays a role in the safety and fuel efficiency of the vehicle. When turning, the torque sensor detects the steering wheel's torque and intended direction. These signals are sent to the electronic control unit via the data bus, which then issues commands to the motor controller based on the torque and intended direction. The motor then outputs the corresponding amount of torque as needed, generating power steering assistance.
You can still drive it, but it's absolutely brutal! Last week, I experienced a sudden stiffening of the steering wheel—it felt like pushing a concrete block. This kind of issue is usually caused by problems with the electric power steering system or the hydraulic power steering pump, possibly a blown fuse, a broken belt, or a stuck steering gear. Older cars with hydraulic power steering are more prone to this, while newer cars with electronic power steering rarely have such issues. Although theoretically, you can still control the car by forcing the wheel, turning becomes extremely strenuous, and changing lanes on the highway feels like a wrestling match. The worst part is making U-turns on narrow roads or in parking lots—it's downright hopeless. My advice? Immediately turn on your hazard lights, pull over, and call a tow truck. Don't push your luck, or you might end up scraping the curb or causing an accident. The repair costs will far exceed the towing fee!
It is indeed possible to continue driving when experiencing power steering failure, but I must warn you that this is quite dangerous. The steering will become extremely heavy, especially at low speeds when maneuvering—sometimes you might even need to stand up to apply enough force to turn the wheel. In terms of causes, hydraulic power steering systems may fail due to fluid leaks in the hoses or a broken power steering pump, while electronic systems often suffer from control module malfunctions. Driving slowly on a straight road might be manageable, but avoid highways at all costs—the strong rebound force when changing lanes can easily lead to loss of control. Once, I was driving with my family when this happened, and during a left turn, the car scraped against the roadside guardrail. It's best to immediately slow down, turn on your hazard lights, and find a safe area to check the power steering fluid level or fuses. If the issue can't be resolved, calling for roadside assistance is the safest option.
