The steering has become heavy
When the steering suddenly becomes heavy and has to be turned with noticeable effort, it seriously complicates vehicle control. This symptom usually indicates problems in the power steering system, making maneuvering dangerous.
Likely causes — most common first
Wear or failure of the power steering pump
The pump creates pressure of a special fluid that helps turn the wheels. Over time, its internal parts wear out, the pressure drops, and the steering becomes heavy, especially at idle.
Weak tension or break of the generator belt
In many cars, the power steering pump is driven by a belt from the engine. If the belt stretches, slips, or breaks, the pump stops working.
Low level or leakage of power steering fluid
The power steering system operates on a special oil-based fluid. When the hoses are leaking or the seals are worn, the fluid leaks out, and the pump has nothing to pump.
Clogged filter or aging of the fluid
Over the years, the working fluid loses its properties, and the built-in filter becomes clogged with dirt and wear products. As a result, the system's throughput decreases, and the fluid pressure reaches the steering with a delay.
Problems with the electric power steering (if equipped)
In modern cars, instead of hydraulics, there is an electric motor that helps turn the steering. When there are malfunctions in the onboard network, oxidation of contacts, or failure of the position sensor, the amplifier simply turns off.