a power steering pump uses a bypass valve to maintain constant pressure no matter what the engine speed. These systems employ ...

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.

Movement is transferred to the Pitman arm, which connects to the steering linkage with a drag link. The hydraulic system helps ... fluid through a relief valve to the control valve, which is ...