hydraulic basics
What fluid transmits hydraulic force through a power-steering system?
what is power steering fluid or ATF
What component does the driver turn to control the steering system?
what is steering wheel
What component supplies hydraulic fluid flow to the power-steering system?
what is power steering pump
What is the inward or outward tilt of the wheel when viewed from the front?
what is camber
What noise can a power-steering pump make when the fluid level is low or air enters the system
what is whining
What is the force exerted by hydraulic fluid per unit area called?
what is pressure
What component converts the driver's steering input into movement of the steering linkage?
what is steering gear
What type of power-steering pump uses a rotor and sliding vanes?
what is vane pump
What is the angle of the steering axis when viewed from the side?
what is caster
What should you check first if a hydraulic power-steering system has low fluid?
what is
Check for leaks and determine why the fluid is low
What principle states that pressure applied to a confined fluid is transmitted equally in all directions?
what is Pascal's Law
What component controls the direction of hydraulic fluid inside a hydraulic steering gear?
what is Rotary/spool control valve
What property means a pump moves a specific amount of fluid for each revolution?
what is positive displacement
What is the angle of the steering axis when viewed from the front?
what is SAI
What happens when air becomes trapped in power-steering fluid?
what is
The fluid can become aerated/foamy and steering assistance can become inconsistent
What happens to hydraulic pressure when there is a restriction in the system?
what is Pressure increases before the restriction
What component removes contaminants from the power-steering fluid?
what is power steering filter
What pump property describes changing the amount of flow according to steering demand?
what is demand
What describes whether the front edges of the tires are closer together or farther apart than the rear edges?
what is toe
If steering assist is poor in both directions, what major component should be tested?
what is power steering pump
What is the amount of fluid moving through a hydraulic system per unit of time called?
what is flow
In a hydraulic power rack-and-pinion system, what separates the two hydraulic chambers?
what is The rack piston/seal assembly
What device prevents excessive pressure from damaging the power-steering system?
what is pressure relief valve
What steering geometry helps the steering wheel naturally return toward center after a turn?
what is poistive caster
What tool is used to measure power-steering system pressure?
wwhat is
Power-steering pressure gauge/test kit