FREE ASE Suspension and Steering Diagnostics Questions and Answers

Question 1

What is the primary function of a vehicle’s shock absorbers?

Accepted Answer

Dampen spring oscillations for a smoother ride.

Answer

Shock absorbers work in conjunction with the suspension springs to control and dampen their continuous up-and-down motion after hitting a bump. By converting kinetic energy into heat, they prevent excessive bouncing and oscillations, ensuring tire contact with the road and providing a stable, comfortable ride.

Question 2

Which component connects the steering gear to the wheels in a rack-and-pinion steering system?

Accepted Answer

Tie rods

Answer

In a rack-and-pinion steering system, the tie rods connect the ends of the steering rack to the steering knuckles on the wheels. They are responsible for transferring the steering input from the rack to the wheels, allowing them to turn left or right.

Question 3

What is a common symptom of worn-out ball joints in a vehicle’s suspension system?

Accepted Answer

Clunking noises and loose steering.

Answer

Worn-out ball joints develop excessive play, leading to noticeable clunking or popping noises, especially when going over bumps or turning. This looseness also results in imprecise or wandering steering, as the connection between the control arm and steering knuckle becomes unstable.

Question 4

What can cause a vehicle to pull to one side while driving?

Accepted Answer

Improper wheel alignment or uneven tire pressure.

Answer

When a vehicle pulls to one side, it's often due to an imbalance in forces acting on the wheels. Improper wheel alignment, where the angles of the wheels are not set correctly, or uneven tire pressure between the left and right sides can both cause the vehicle to drift or pull in a specific direction.

Question 5

What is the purpose of a sway bar in a vehicle’s suspension system?

Accepted Answer

Reduces body roll and improves handling.

Answer

A sway bar, also known as an anti-roll bar, is a torsion spring that connects opposite wheels through short lever arms. Its purpose is to resist body roll during cornering by transferring force from the wheel with less load to the wheel with more load, keeping the vehicle flatter and improving stability.

ASE - Automotive Service Excellence Certified Tech Practice Test

ASE - Automotive Service Excellence Certified Tech Practice Test

FREE ASE Suspension and Steering Diagnostics Questions and Answers