What Causes Rear Shock Absorber Noise?
2 Answers
Rear shock absorber noise can be caused by damaged shock absorbers or damaged suspension springs. Below are detailed explanations of the specific causes: Damaged Shock Absorber: When a vehicle's shock absorber is damaged, the coordination between its components becomes problematic, causing it to produce squeaking noises when working on bumpy roads. Damaged Suspension Spring: The top mount of a car's front shock absorber is made of rubber material and primarily serves to assist the shock absorber and suspension spring in providing cushioning and shock absorption. When the shock absorber top mount becomes damaged due to excessive wear, it not only produces noise during operation but also generates noise when turning the steering wheel while stationary, even if the shock absorber is not in use.
I've experienced rear shock absorber noise issues several times, mainly due to worn bushings or brackets that squeak when driving on bumpy roads. If the shock absorber leaks oil or has a damaged piston, it can also produce knocking or hissing sounds. I ignored it before, and the car body swayed dangerously during turns, nearly causing an accident. Fatigue or loosened springs can also cause noise, like spring bouncing sounds. Loose mounting bolts may hit the car body when going over potholes. My advice is not to delay—visit a professional repair shop as soon as possible to inspect with a lift, replace parts or tighten them if necessary. For prevention, driving on good roads and avoiding potholes can extend shock absorber lifespan. Safety first.
