The power-steering pump pressurizes the hydraulic fluid that helps the driver turn the steering wheel. Signs of steering-pump failure include leaks, noises or decreased assistance while steering.

An engine-driven accessory drive or serpentine belt turns on the pump and directs high-pressure power steering fluid via the ...

Power steering uses a pump, driven by a belt connected to the engine, to push hydraulic power steering fluid through the system. That pressure applies more force to the steering assembly than the ...