Where Is The Control Valve Located In A Rack And Pinion Power Steering System

A rack and pinion is commonly found in the steering mechanism of cars or other wheeled steered vehicles rack and pinion provides less mechanical advantage than other mechanisms such as recirculating ball but less backlash and greater feedback or steering feel the mechanism may be power assisted usually by hydraulic or electrical means.

Where is the control valve located in a rack and pinion power steering system.

A power steering pressure gauge is being used to diagnose a system problem on a rack and pinion system. In most cases when a power steering system fails on older vehicles it s due to this part or the parts that are attached to the control valve. A rotary vane pump see diagram below provides the hydraulic power for the steering. When the power steering control valve breaks it will display a few common symptoms including a smell of burning power steering fluid a whining noise while turning or power steering fluid leaking from.

You ll find a cylinder and piston on the rack too. In a power steering system the design of the rack is a little different. Therefore the steering wheel rotations move the pinion and then the rack in that order. In all these types of power steering systems the pump delivers fluid to the control valve.

It has a set of retractable vanes that turn inside an oval chamber. Technician a says that the pump pressure regulator is bad. The rack and pinion steering gear hydraulic cylinder is part of the rack gear and the control valve is connected by a torsion bar to the steering shaft. Key parts of the power steering system include the rack and pinion or recirculating ball mechanism.

The control valve opens a pressurized flow to and from the hydraulic cylinder. The use of a variable rack still using a normal. When the gauge valve is closed the pressure reading is within specifications.