ASE A4 Steering Suspension Practice Test

Diagram of the tilt steering column function.

6. Technician A says an open at point A will cause an inoperative steering column tilt function. Technician B says resistance at point B will cause the tilt function to operate slowly. Who is correct?

  • A. Technician A
  • B. Technician B
  • C. Both A and B
  • D. Neither A or B

6.

Answer A is wrong. An open circuit in the power source leading to the tilt steering motor will result in an inoperative tilt steering system. Low system voltage will affect the PCM (P0562 System Voltage Low) and other modules like the electric power steering and tilt/telescopic control module. This problem typically results from a faulty alternator, a weak battery, cables/wiring, or a blown fuse.

Answer B is wrong. Resistance in the connector will result in a slow-turning tilt steering motor.

Answer C is correct. Both technicians are correct.

Answer D is wrong. Resistance could be caused by a frayed wire, corrosion, spaded pins, or a loose connector.

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7. Technician A says electro-hydraulic power steering systems have an electric pump to create hydraulic fluid pressure. Technician B says EPS electric power steering uses an electric motor to assist steering. Who is correct?

  • A. Technician A
  • B. Technician B
  • C. Both A and B
  • D. Neither A or B

7.

Answer A is wrong. Electro-hydraulic power steering systems are hybrid and have an economical electric motor instead of a belt-driven hydraulic power steering pump.

Answer B is wrong. Many late-model vehicles have EPAS Electric Power-Assist Steering that uses an electric motor instead of a pump and hydraulic pressure to provide power steering assist.

Answer C is correct. Automotive power steering systems have evolved from hydraulic to electro-hydraulic to all-electric. Both technicians are correct.

Answer D is wrong. Both technicians are correct.

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8. Two technicians are discussing inner and outer tie rods. Technician A says to turn the outer tie rod end to adjust the toe setting. Technician B says loose inner tie rod ends cause feathered tire wear. Who is correct?

  • A. Technician A
  • B. Technician B
  • C. Both A and B
  • D. Neither A or B

8.

Answer A is wrong. A sleeve adjusts the toe on many gearbox/parallelogram steering systems found on trucks and rear-wheel cars. It's important to maintain and not damage this sleeve. Special tools are produced. Typically, inner tie rods are turned to lengthen and shorten the tie rod length on rack and pinion systems.

Answer B is correct. Loose inner tie rod ends cause a vehicle to shimmy and feathered tire wear. Using an inexpensive special tool should greatly reduce labor. The inner tie rod end on a rack and pinion steering system is rotated to make toe adjustments.

Answer C is wrong. Technician B is correct.

Answer D is wrong. Technician B is correct.

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9. The left rear tire of a vehicle with independent rear suspension is worn on the inside tread. Which of the following is MOST likely causing this wear?

  • A. The toe angle.
  • B. Underinflated tires.
  • C. The caster.
  • D. None of the above.

9.

Answer A is correct. Both front and rear toe are tire-wearing angles. Out-of-specification toe on the rear of a vehicle will also cause an out-of-specification thrust angle, vehicle pull, and an off-center steering wheel.

Answer B is wrong. An underinflated tire wears both outside edges of the tire.

Answer C is wrong. Caster is a front-wheel angle; it supports stability and the steering wheel return to center. Out-of-specification camber results in tire wear on one side of the tire.

Answer D is wrong. Out-of-specification rear toe will cause excessive tire wear.

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10. Technician A says SAI or Steering Axis Inclination is adjusted by changing the caster angle. Technician B says camber adjustments are included in the Included Angle. Who is correct?

  • A. Technician A
  • B. Technician B
  • C. Both A and B
  • D. Neither A or B

10.

Answer A is wrong. If the SAI is out of specification, a damaged or bent part is most likely the cause. Always perform a complete inspection of the vehicle's suspension.

Answer B is correct. Camber is part of the included angle.

Answer C is wrong. Technician B is correct.

Answer D is wrong. Technician B is correct.

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