ASE A4 Steering Suspension Practice Test

alignment chart

6. The vehicle in the alignment chart above has excessive shimmy above 45 mph. The MOST likely cause of this condition is:

  • A. Camber
  • B. Wheel Balance
  • C. Toe
  • D. Caster
alignment chart

6.

Answer A is wrong. The camber angle is within specifications. Camber is a tire wearing angle that will cause a pull to the side with the most positive camber.

Answer B is wrong. Out of balance tires cause a vibration at speeds above 45 mph, but after viewing the chart the caster is clearly out of specifications, and too much positive caster will result in wheel shimmy.

Answer C is wrong. The toe is within specifications. Answer D is correct.

Answer D is correct. Too much positive caster will result in wheel shimmy.

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7. A vehicle with a power rack and pinion steering system doesn't return to center after completing a turn. Technician A says an incorrect caster angle will cause this condition. Technician B says a binding lower ball joint would have no affect on steering wheel return to center. Who is correct?

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

7.

Answer A is correct. Cars and light trucks typically have a positive caster setting, this helps steering wheel return to center.

Answer B is wrong. A binding ball joint will affect the steering wheel's ability to return to center. It will also result in a clunking noise while turning the wheel.

.Answer C is wrong. Technician A is correct.

Answer D is wrong. Technician A is correct.

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8. A technician is replacing weak coil springs on a light truck with coil spring suspension. Which of the following are not used to support a solid axle with this type of suspension?

  • A. Track bars
  • B. Pitman arms
  • C. Control arms
  • D. Strut rods

8.

Answer A is wrong. Track bars help control side to side movement as the vehicle turns.

Answer B is correct. Pitman arms are used with gearboxes to control steering linkage.

Answer C is wrong. Control arms are used to control axle movement as the vehicle accelerates and travels over bumps in the road.

Answer D is wrong. Strut rods are used to prevent forward and backward axle movement.

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9. Two technicians are discussing struts on a front wheel drive vehicle. Technician A says some struts have a camber lobe adjustment. Technician B says a worn strut tower will make excessive noise when going over bumps. Who is correct?

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

9.

Answer A is wrong. Both Technicians are correct.

Answer B is wrong. Both Technicians are correct.

Answer C is correct. Some struts have an eccentric camber lobe adjustment. A bad strut tower will make a thumping noise when going over bumps.

Answer D is wrong. Both Technicians are correct.

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10. Technician A says the power steering pressure switch sends a signal to the PCM to increase idle speed while parking. Technician B says variable assist steering provides maximum pressure during high speed operation. Who is correct?

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

10.

Answer A is correct. The variable assist power steering system offers maximum pressure in parking situations and restricted pressure during higher speed conditions.

Answer B is wrong. Technician A is correct. This system will reduce pressure during high speed operation.

Answer C is wrong. Technician A is correct.

Answer D is wrong. Technician A is correct.

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