What Causes a Stiff Car Steering Wheel?
2 Answers
The reasons for a stiff car steering wheel are: 1. Insufficient tire pressure; 2. Contaminated power steering fluid; 3. Internal failure of the power steering system; 4. Poor bearing lubrication. The principle of a car steering wheel is to transmit torque to the rack and pinion mechanism, thereby pushing the wheels to turn left or right. Solutions for a stiff car steering wheel include: 1. Replenishing hydraulic power steering fluid; 2. Replacing circuit fuses; 3. Replacing flat bearings; replenishing kingpin grease; 4. Increasing lubrication for the steering tie rod ball joints. Steering wheels are categorized into: single-spoke steering wheels, dual-spoke steering wheels, three-spoke steering wheels, and four-spoke steering wheels.
Yesterday while driving, I felt the steering wheel was unusually tight, and I suspect there might be an issue with the steering system, especially the hydraulic power steering pump possibly leaking or failing. I remember encountering similar situations before where insufficient or contaminated power steering fluid could also make the steering wheel extremely heavy, making it feel like driving a car without power assistance. Additionally, it's necessary to check if the tie rods are loose or if the ball joints are worn, as these can affect the smoothness of steering. I recommend pulling over immediately to avoid accidents, because once the power assistance fails, turning becomes particularly dangerous, and you'd have to drive slowly to the repair shop for inspection. They usually start by checking the fluid level and then test the pump's pressure.
