Control Arm Bushing

Control Arm Bushing

 

The Design

This suspension component consists of a steel sleeve surrounded by neoprene rubber that is pressed into the control arm and serves as a pivot point between the control arm and sub-frame.

Symptoms

  • When drivers hear a knocking and/or squeaking noise when riding over bumps, it may be an indication of a failed control arm bushing.
  • Other symptoms of control arm bushing failure include uneven tire wear and vehicle wandering.

It’s purpose

Because the control arm is an important structural part of the vehicle’s front suspension (it attaches the wheel hub and steering knuckle assembly to the vehicle’s frame), bushing failure can spell real trouble. When symptoms of bushing failure arise, it is important to have the vehicle inspected.

TIP: Because control arm bushings cannot tolerate heat and exposure to petroleum products very well, these factors can lead to failure.

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Written by Maryann Croce

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