What Causes the Steering Wheel to Become Stiff in Rain?
2 Answers
It might be due to water ingress in the car's electrical system, requiring inspection and repair at a 4S shop. Below is relevant information: 1. Overview: Generally, open circuits, short circuits, and damaged electrical equipment are common issues in the electrical system. Aging wiring and excessive electrical load in the car are contributing factors. When the engine is running, the ignition coil reaches high temperatures, which can soften, age, or crack the insulation of high-voltage ignition wires, leading to high-voltage leakage or short circuits. 2. Others: Modern cars incorporate increasing electronic control technologies, and the application of automotive intelligence has significantly raised the power consumption of car electronics. The limited load capacity of the car's electrical system makes microcomputers, electronic components, and various sensor circuits susceptible to damage. Additionally, installing numerous additional electronic devices in the car may further burden the electrical circuit.
I've driven several cars, and it's quite common to experience difficulty steering in rainy weather. The main issue could be that the power steering system has gotten wet and rusted, causing it to seize up. Rainwater seeping into mechanical components reduces lubrication, making it harder to turn. If the hydraulic power steering pump is leaking oil, the fluid can thicken when damp, leading to sluggish movement. Electronic power steering sensors, when wet, are prone to short circuits and misjudgments. Tire slippage can sometimes make steering feel heavier, but actual faults need to be addressed promptly. For safety, if this happens, immediately turn on hazard lights and pull over. Check the chassis for obvious rust spots and use a phone flashlight to inspect the power steering fluid reservoir or wiring connectors for abnormalities. It's advised not to force the car to a repair shop; instead, get it professionally checked to prevent rainy-day accidents. Regular maintenance should focus on sealing rings and applying anti-rust oil periodically, which can significantly reduce risks.
