What are the symptoms of a damaged car control arm?

[OFrank]

Damage to a car's control arm typically manifests as: abnormal tire wobbling during driving, leading to uneven tire wear and increased noise. The control arm is part of the steering system, and a damaged control arm bushing directly causes abnormal vehicle dynamics, resulting in the car pulling to one side. Excessive wear affects directional control, posing significant safety risks. It is recommended to conduct a comprehensive inspection at a 4S shop, including tire checks. If parameters are found to be incorrect, a four-wheel alignment may be necessary. Below is the replacement method for a damaged control arm bushing: 1. Lift the vehicle, remove the control arm bushing, then detach both ends of the control arm. Select two metal sleeves of corresponding sizes and install the new bushing, ensuring the larger ones are correctly oriented (marked with L or R). 2. Proceed to disassemble and remove the screws. The old bushing should detach easily with a gentle pull, indicating quality issues. This may cause knocking sounds, excessive play in the tires, and accelerated wear of the stabilizer links, leading to damage to the stabilizer bar and shock absorbers. When driving over rough roads, the vehicle will experience severe jolting. 3. Apply dish soap to the new control arm bushing for lubrication during installation. Alternatively, other rubber-compatible lubricants can be used, but motor oil should be avoided as it can corrode rubber.