ASE A4 Steering Suspension Practice Test

1. A technician is using a steel hammer to remove a loose tie rod end from an aluminum steering knuckle. Which of the following is correct?

  • A. Care should be taken not to strike the threaded ball socket.
  • B. Care should be taken not to strike the loose tie rod end.
  • C. Use a puller not a hammer to remove the tie rod end from the steering knuckle.
  • D. Use a puller to apply pressure while striking the steering knuckle with moderate force to remove the loose tie rod end.

1.

Answer A is wrong. Use a puller on aluminum parts. They also save threaded parts from unwanted damage.

Answer B is wrong. Striking an aluminum part with a hammer can easily dent it or cause irreversible damage.

Answer C is correct. Using the appropriate puller can save time and the part that’s being removed.

Answer D is wrong. Answer C is correct.

2. Technician A says Electric Power Steering systems require inputs from the steering torque sensor and the vehicle speed sensor to operate the system's electric motor. Technician B says to use a scan tool to retrieve trouble codes from an EPS system. Who is correct?

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

2.

Answer A is wrong. Both technicians are correct. These systems require inputs from torque, angle, and speed sensors.

Answer B is wrong. Use the appropriate scan tool to retrieve trouble codes and view system data.

Answer C is correct. Both technicians are correct.

Answer D is wrong. Read more about EPS power steering systems in the read more section.

3. There is a growling sound coming from the front of a vehicle that increases with vehicle speed and gets louder while turning left. Which of the following is causing this noise?

  • A. A cupped left front tire tread.
  • B. A cupped right front tire tread.
  • C. A bad left front wheel bearing.
  • D. A bad right front wheel bearing.

3.

Answer A is wrong. A cupped tire changes its pitch from one surface to another. This change in pitch is true with all tires, but much more pronounced with a cupped or scalloped tire.

Answer B is wrong. A cupped tire will make a humming or growling noise.

Answer C is wrong. The weight of the vehicle works the bearing on the outside of the turn. For instance, a faulty left front wheel bearing is loudest while turning right.

Answer D is correct. A right front wheel bearing is loudest while turning left.

4. Which of the following is used to flush old dark colored power steering fluid from a hydraulic power steering system?

  • A. Solvent
  • B. Brake cleaner
  • C. Carburetor cleaner
  • D. Power steering fluid

4.

Answer A is wrong. Flushing the system removes contaminants and debris.

Answer B is wrong. Brake cleaner is not used to flush power steering systems.

Answer C is wrong. Carburetor cleaner is not used to flush power steering systems.

Answer D is correct. Power steering fluid is used to flush power steering systems. Some manufacturer's recommend flushing with a solvent free power steering cleaner before a regular fluid exchange or every 50,000 miles.

5. Which of the following is true about directional tires?

  • A. Directional tires tend to hydroplane more than standard all-season tires do.
  • B. Directional tires must not be rotated front to rear.
  • C. Directional tires must be dismounted and remounted if rotated front to rear.
  • D. Directional tires are designed to spin or rotate in only one direction.

5.

Directional tire.

Answer A is wrong. Directional tires are designed to channel water away from the center of the tire and outwards, reducing the chance of hydroplaning on wet surfaces.

Answer B is wrong. The left front tire may only be rotated to the left rear. The same is true for the right front tire; it can only be rotated with the right rear. Directional tires have a V-shaped tread pattern.

Answer C is wrong. When mounting or rotating directional tires, make sure the arrow is pointing toward the front of the vehicle.

Answer D is correct. Directional tires have an arrow on the sidewall that faces the front of the vehicle and must always spin in one direction. They have to be kept on the same side of the vehicle and not rotated to the other side.