What Causes a Car's Steering Wheel to Feel Very Stiff?
2 Answers
There are several main reasons why a car's steering wheel may feel very stiff: 1. For hydraulic power steering systems, the most common cause is dirty power steering fluid. This situation is similar to how dirty engine oil can affect engine power and performance. 2. For electric power steering systems, it's necessary to check whether the fuse is blown, or if there are any open circuits or short circuits to ground in the wiring. 3. For electric power steering systems, repeatedly turning the steering wheel while stationary or at low speeds puts extreme load on the power steering system. This can easily cause the steering gear to overheat and activate protection mode, resulting in heavy steering. It will return to normal after cooling down, which is a normal phenomenon. 4. Insufficient tire pressure can also make the steering wheel feel noticeably heavier for the driver. Simply replenishing to standard tire pressure will restore normal operation.
My car's steering wheel is extremely stiff, just encountered it a few days ago, really annoying. Initially thought it was the power steering pump failing—hydraulic power steering cars will have heavier steering if the pump is faulty, requiring more force to turn. Or it could be low or dirty power steering fluid, insufficient oil pressure naturally makes it harder. Another possibility is uneven tire pressure or incorrect wheel alignment, causing uneven tire grip and increased steering resistance. I remember once driving to the supermarket, the steering wheel felt as heavy as if someone was pulling from behind, almost causing an accident. It's recommended to first check the simplest thing—tire pressure. If that's normal, then quickly head to the repair shop to inspect the power steering system. Driving like this long-term will wear the steering wheel faster and may even affect suspension components—safety is not something to take lightly. In short, don't delay with this kind of issue, address it as soon as possible—safety first.