Steering assist is provided by which of the following mechanisms?

Prepare for the Automotive Service Technician Period 1 exam. Study with flashcards and multiple choice questions, each question has hints and explanations. Get ready for your exam!

Steering assist comes from a pressure difference created in a hydraulic system. A pump, usually belt-driven off the engine, pressurizes the steering fluid. As you turn the wheel, a valve in the steering gear directs fluid to one side of a hydraulic piston while the opposite side is allowed to drop pressure. This imbalance pushes the piston and adds torque to the steering rack, making steering easier, especially at low speeds. The other options describe different systems—electric power steering uses an electric motor, vacuum assist relies on engine vacuum and isn’t hydraulic, and a mechanical linkage provides no assist at all.