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Why Does a Truck's Steering Feel Unstable and Sway from Side to Side?

1 Answers

ReedAnn

07/30/25 5:05am

There are many reasons why a truck's steering may feel unstable and sway up and down, including issues with the steering gear, abnormal tire pressure, incorrect wheel alignment, or damaged shock absorbers. A detailed analysis is as follows: 1. Steering gear malfunction: When there is a problem with the vehicle's steering gear, the truck may experience unstable steering, veering to one side, difficulty turning, or even an inability to steer. There are numerous potential causes for steering gear malfunctions, and it is advisable to seek professional inspection and repair at a service center or 4S shop. 2. Abnormal tire pressure: If the tire pressure is uneven on both sides of the vehicle, the truck will tend to veer toward the side with lower tire pressure. In such cases, it is essential to stop immediately, inspect the tires, and proceed with repairs or replacements as needed. 3. Incorrect wheel alignment: If the truck's wheels are not properly aligned after tire replacement, the tires may become unbalanced, affecting the vehicle's handling. In this situation, a complete wheel alignment should be performed, and the tires' dynamic balance should be checked. 4. Damaged shock absorbers: When the truck's shock absorbers are damaged or there are issues with the ball joints, it can often lead to steering instability and veering problems.

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