The control arms on modern vehicles have two primary responsibilities: control and isolation. Vehicle manufacturers put a lot of time and engineering into the shape, construction, and design of control arms. That shape helps to control the suspension geometry as it travels up and down.
It’s safe to say that most customers don’t fully understand how important the control arms are to vehicle ride quality, or how other systems can be affected by them when they are worn out.
Tires can wear out prematurely because suspension geometry is not being maintained over bumpy roads or going around curves. If a bushing is torn it may cause a knocking or clunking noise.
