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Automotive Technician Ch 118
Terms in this set (22)
Two technician are discussing the proper procedure for bleeding air from a power steering system. Technician A says that the front wheels of the vehicle should be lifted off the ground before bleeding. Technician B says that the steering wheel should be turned left and right with the engine off during the procedure. Which technician is correct?
A power steering test is being performed, and the pressure is higher than specifications with the engine running and the steering wheel stationary in the straight ahead position. Technician A says that a restricted high pressure line could be the cause. Technician B says that internal leakage inside the steering gear or rack and pinion unit could be the cause. Which technician is correct?
Integral power steering gears use ________ for lubrication of the unit.
Power steering fluid in the system
What can cause hard steering on a vehicle equipped with a hydraulic power assisted steering system?
All of the above
High pressure hoses have to be used on the high pressure side of the power steering system because pressures can reach as high as ________.
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?
Power steering pressure switch
What type of motor is used in most electric power steering (EPS) system?
Two technicians are discussing electric power steering (EPS) systems. Technician A says that some systems operate on 12 volts. Technician B says that some systems operate on 42 volts, such as on some hybrid electric vehicles. Which technician is correct?
All power steering pumps have integral reservoirs.
Which of the following represent typical power steering pressures?
All of the above
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.
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?
A system flush is required when any major power steering repair is performed.
Technician A says that lifting the vehicle and turning the steering wheel may help bleed air out of some systems. Technician B says that if this procedure is used, the wheels should be turned from stop to stop. Which technician is correct?
What law states that pressure on a confined fluid is transmitted equally in all directions and acts with equal force on equal areas.
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?
What is the maximum pressure a power steering pump provides during low speed cornering?
Which statement is true regarding the flow control valve on a power steering pump?
If the steering column of an electric power steering system vehicle is replaced, what may have to be re-learned by the electric power steering control module?
Torque sensor zero
The electrohydraulic power steering pump provides hydraulic power to the steering gear and _______.
A replacement power steering pump will come with the pulley already installed.
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