What Causes Electric Power Steering to Become Heavier?
1 Answers
Electric power steering becoming heavier can be attributed to the following reasons: 1. Low tire pressure: If you notice the steering wheel is slightly heavier than before, it's advisable to first check the tire pressure. Sometimes, low tire pressure can also cause the steering wheel to become heavier, making it harder to turn. 2. Low vehicle speed naturally makes the steering heavier: Whether the steering wheel becomes heavier depends on its relation to vehicle speed. The assistance level of the electric power steering system is inversely proportional to the vehicle speed—it's heavier at high speeds and lighter at low speeds. Moreover, it only operates when steering, which helps reduce fuel consumption. If it's confirmed to be related to vehicle speed, this is normal. 3. Vehicle battery discharge: The energy for the electric power steering system's motor comes from the battery or the engine. Energy from the motor is only required during steering operations. If the car battery has been used for a long time, it might affect the normal output of the electric power assistance. The lifespan of a car battery is typically around 3-5 years. Batteries used for more than 3 years should be replaced promptly when necessary. 4. If it's confirmed that the issue is unrelated to vehicle speed and both tire pressure and battery are normal, it's recommended to visit a professional auto repair shop or 4S store for inspection. It's likely that the electric power steering system itself has developed a problem, such as overly tight bearings or poor lubrication.
