What Are the Reasons for Continued Vibration at High Speed After Wheel Balancing?
2 Answers
The reasons for continued vibration at high speed after wheel balancing are: 1. Uneven tire pressure among the tires; 2. Deformation or bending of the drive shaft, excessive wear of the drive shaft ball joint; 3. Differences in the vehicle's toe-in and kingpin inclination angles; 4. Poor performance of the shock absorbers; 5. Severe aging of the engine mounts, which fail to absorb the vibrations generated during engine operation. The solutions for continued vibration at high speed after wheel balancing are: 1. Adjust the tire pressure of each tire to ensure uniformity; 2. Remove the drive shaft and perform wheel balancing; 3. Replace the drive shaft ball joint bearing; 4. Perform a four-wheel alignment to adjust the values of each inclination angle; 5. Inspect each shock absorber and repair or replace any faulty ones; 6. Replace the engine mounts.
I found that after wheel balancing, the car still shakes at high speeds, often indicating issues beyond just tire balance. The balancing operation might not have been done properly, such as due to inaccurate equipment or insufficient technician experience, leaving the wheel's center of gravity off. It could also be that the wheel rim is slightly deformed—some impacts or accidents can damage the rim, making balancing difficult. Aging suspension systems, weakened shock absorbers or springs, or loose ball joints can cause unstable force transmission and shaking at high speeds. Problems with driveshaft balance or worn engine mounts can also worsen vibrations. A comprehensive inspection is recommended: first, return to the original shop to recheck the balancing data using professional equipment; if that doesn’t help, check if the rims are even and replace them if necessary, while also inspecting the suspension and brake components to avoid safety risks. Regular maintenance of tires and suspension can prevent such issues.
