Control Arm Noise Causes: Symptoms of a Failing Lower Arm

Common Causes of Control Arm Noise

• Worn ball joint: "Clunk" over bumps, excess play
• Aged bushing: Cracked rubber, wandering feel
• Torn ball joint boot: Dirt accelerates wear
• Loose bolts: Improper torque

Symptoms

• Clunking over speed bumps
• Steering play, pulling
• Nose dive on braking
• Uneven tire wear

Inspection

Lift vehicle, pry the arm to check ball joint play; inspect bushing cracks; rock the wheel for bearing play.

Fix

Replace assembly when play is excessive; replace bushing sets when cracked. Huami offers full-range arms and bushings.