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ASE Automobile

A4 Suspension & Steering — practice test

Studying for A4 (Suspension & Steering)? Overhaul Prep has 120 verified A4 questions written to the current task list — in the same formats the real exam uses (direct, Technician A/B, EXCEPT and most-likely-cause). Every answer comes with a written explanation, so you learn why instead of memorising a letter.

120A4 questions
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9,711questions in total
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Sample A4 questions

Straight from the bank — answers highlighted, with the explanation underneath.

When viewed from the front of the vehicle, camber is best defined as the:

  1. Forward or rearward tilt of the steering axis from vertical
  2. Inward or outward tilt of the top of the wheel from true vertical
  3. Difference in distance between the front and rear of the tires
  4. Inward tilt of the steering axis line, viewed from the front, from vertical
WhyCamber is the inward (negative) or outward (positive) tilt of the wheel centerline from true vertical, viewed from the front. The forward/rearward tilt of the steering axis describes caster, and the front-to-rear tire distance describes toe.

Two technicians are discussing ball-joint inspection on a short/long-arm (SLA) suspension. Technician A says that on a design with the coil spring seated on the lower control arm, the lower ball joint must be unloaded—by supporting the lower control arm—before measuring joint play. Technician B says a ball joint equipped with a wear indicator is checked with the vehicle's full weight resting on the tires. Who is correct?

  1. Technician A only
  2. Technician B only
  3. Both Technicians A and B
  4. Neither Technician
WhyThe load-carrying joint must be unloaded to reveal true axial/radial play, which requires placing the jack under the lower control arm—not the frame—so the spring force is removed from the joint. Wear-indicator joints are read loaded, with the tires on the ground, by observing whether the indicator shoulder still protrudes.

During a dry park test, the technician observes visible movement at the idler arm and at one outer tie rod end. The customer's complaint is MOST likely:

  1. Steering wander and erratic or uneven tire wear
  2. A power steering fluid leak onto the driveway
  3. Steering wheel shimmy felt only during braking
  4. A whine that rises and falls with engine RPM
WhyA worn idler arm and tie rod end let toe change as the vehicle moves, producing wander and feathered/uneven tire wear; a brake-only shimmy indicates rotor runout and an RPM-linked whine indicates the PS pump, not loose linkage.

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