What Causes Body Shaking at High Speeds?
1 Answers
The reasons for body shaking at high speeds are as follows: 1. Misaligned positioning angles: The front wheel positioning angles are misaligned, with excessive toe-in. 2. Wheel issues: Low front tire pressure, deformed front wheel spokes, incorrect number of tire bolts, or tire imbalance due to repairs. 3. Drivetrain faults: Loose installation of drivetrain components, bent drive shaft, power imbalance, or deformed front axle. 4. Damaged shock absorbers: Inconsistent stiffness of the front leaf springs, causing vibration at higher speeds and steering wheel shaking. To diagnose, lift the drive axle, secure the front wheels with safety blocks, start the engine, and gradually shift into higher gears until the drive wheels reach the test vibration speed. If both the body and steering wheel shake, the vibration is drivetrain-related.