ASE A4 Suspension and SteeringSteering System Diagnosis and RepairEasy
A customer complains of a noticeable 'popping' or 'clicking' noise coming from the front end, particularly when turning sharply at low speeds. The technician inspects the steering linkage and finds no excessive play in the tie rod ends or ball joints. What is the MOST likely cause of this noise?
- AA faulty strut bearing.
- BA worn power steering pump bearing.
- CA loose steering gear mounting bolt.
- DA binding steering shaft universal joint.
Show answer & explanationAnswer & explanation
Correct answer: A. A faulty strut bearing.
A popping or clicking noise when turning at low speeds, especially when steering linkage components are ruled out, often points to a worn or corroded strut bearing. The strut bearing allows the strut assembly to rotate with the steering knuckle.
Why the other options are wrong
- B. A worn power steering pump bearing typically causes a whining or groaning noise, not a popping sound.
- C. A loose steering gear mounting bolt would likely cause a clunk or play in the steering, not a distinct popping during turns.
- D. A binding steering shaft universal joint usually causes a clunk or stiff steering, not a popping noise during turns.
Strut Bearing Noise
A popping or clicking noise heard when turning the steering wheel, particularly at low speeds, often indicates a worn or damaged strut bearing.
- Allows strut to rotate with steering.
- Can cause noise when turning.
- Often mistaken for steering linkage issues.
Memory trick: Noisy turns might mean a strut's concern.