Control Arm: Testing and Inspection

LOWER ARM AND BUSHING

Check the front suspension lower arms, the front stabilizer bar, and the rear suspension lower arms for signs of damage and possible deformation due to curb impacts, improper hoisting, etc. If any such damage is evident, carefully measure and compare the component with its opposite-side counterpart to detect any differences. Check all front and rear suspension rubber bushings for wear or deterioration while supporting the vehicle and the bushed component so the bushing carries no load. If any unrestrained motion (free play) is apparent in a shake test, the suspension arm should be replaced.

Test all rubber-bushed suspension mounting and connecting points for free play in the unloaded condition. Use a jack or lever to raise the vehicle or suspension component to unload the bushing for shake testing. Some restrained relative motion is permissible as the bushing is stressed in testing, but if free play is evident at any point, the suspension arm should be replaced.