Exam 118: Power-Assisted Steering Operation and Service

Integral power steering gears use ________ for lubrication of the unit.

The steering torque sensor in an electric power steering system senses ________.

Some vehicles are equipped to signal the computer whenever the power steering pressures increase so the idle speed can be increased to prevent stalling during turns at low speeds. What component signals the computer?

A power steering pressure gauge is being used to diagnose a system problem on a rack and pinion system. When the wheels are turned all the way left, a pressure reading less than specification is found. When the gauge valve is closed, the pressure reading is within specifications. Technician A says that the pump pressure regulator is bad. Technician B says that there is a problem in the rack assembly. Which technician is correct?

Technician A says that the current trend is to use remote power steering fluid reservoirs. Technician B says that using a remote reservoir allows for a more compact power steering pump assembly. Which technician is correct?

How much effort is typically required to turn the steering wheel on vehicles with power steering?

A power steering pressure switch sends a signal to the powertrain control module, indicating higher engine speed is needed during sharp cornering at slow speeds.

What input(s) do/does the Magnasteer system use to determine the amount of power steering assist needed?

A replacement power steering pump will come with the pulley already installed.

Technician A says that all vehicles from the same manufacturer use the exact same power steering fluid. Technician B says that some fluids may be incompatible with system seals. Which technician is correct?