Why Does the Steering Wheel Become Heavy?
2 Answers
The reasons for a heavy steering wheel are as follows: 1. Insufficient power steering fluid: Power steering fluid is a medium oil used in the car's power steering pump, which helps transmit steering force and provides cushioning. The power steering fluid needs to be replaced regularly, and any leaks should be checked. When the power steering fluid is insufficient, the steering will feel heavy and stiff. 2. Low tire pressure: Low tire pressure increases the contact area between the tires and the road surface, leading to greater friction and making steering more difficult, resulting in a heavy steering wheel. This is not conducive to driving safety, and the tire pressure should be replenished promptly. 3. Overly tight bearing fit: For the rolling bearings connecting the steering system, if they are too tightly fitted with the sliding bearings, it can prevent proper lubrication and operation of the bearings. This can lead to jamming, causing the steering wheel to become heavy. In this case, the mechanical parts and power steering system should be inspected, or checked for oil leaks and damaged intake seals. 4. Power steering system issues: The steering wheel and the power steering system are closely related. Therefore, when the steering wheel becomes heavy, it may also indicate internal problems in the power steering system, such as poor electrical contact or other malfunctions. In such cases, it is advisable to have the system inspected and repaired at a 4S shop.
Recently, my car's steering wheel has become heavier. At first, I thought it was due to cold weather or low tire pressure, but after inspection, I found that the power steering fluid was almost empty. When the power steering fluid is insufficient, the system cannot provide enough force, making steering more difficult. Additionally, if the tire pressure is too low, increased friction can also make the steering wheel feel heavy. I also noticed that uneven tire wear or misalignment can cause the car to drift while driving, requiring more effort to control. If ignored for a long time, it may damage the power steering pump or tie rods, leading to more expensive repairs. It's recommended to first check tire pressure and fluid levels yourself—simple top-ups or replacements might solve the issue. If the problem persists, take it to a professional shop immediately to inspect the electrical or mechanical components, and don't wait until the steering fails.
