Bangkok: Social media is circulating claims about causes of vehicle bouncing or swaying during driving, such as worn springs and leaf springs, and deteriorated rubber bushings. Is this true? Find out in the "Sure Before Sharing" Motor Check series with Peerapol Anutrotsothi from the Sure Before Sharing Center.
According to Thai News Agency, the "Sure Before Sharing" center verified the information with Mr. Apinu Viriyakobkul, a car tester and expert, "Uncle Nu," from the Grand Story channel. They explored the issue of cars exhibiting unusual bouncing, swaying, or wobbling, especially during cornering, and identified six primary reasons for these symptoms.
The first cause is overinflating the tires. Many drivers believe that higher tire pressure saves fuel, but this can lead to reduced contact with the road and increased vibrations. The recommended solution is to ensure tires are inflated to the correct pressure as specified in the vehicle's owner manual or on the driver's side B-pillar sticker.
Secondly, worn-out shock absorbers can cause a vehicle to sway or bounce when driven over rough surfaces. If shock absorbers are leaking oil or the vehicle bounces excessively, immediate replacement is advised.
The third factor involves fatigued springs and leaf springs, which support the vehicle's weight. If these components are worn, the car may tilt and sway. Replacing them in pairs is recommended to maintain equal stiffness.
Installing tires larger than factory specifications can alter the vehicle's center of gravity, leading to increased swaying. This is especially true for off-road vehicles equipped with larger tires. Maintaining factory-recommended tire sizes helps mitigate this issue.
Ball joints and rubber bushings that are torn or worn out can cause steering instability. As these components deteriorate, they fail to absorb vibrations, resulting in a swaying vehicle. Replacement of these parts is necessary once deterioration is observed.
Finally, expired or deteriorated tires lose flexibility and friction, increasing the risk of skidding, particularly in wet conditions. Regular tire replacement according to mileage or manufacturing date is crucial for safety.
In summary, if a vehicle displays bouncing and swaying symptoms, it is imperative to address these issues promptly by checking the aforementioned points or consulting a service center. Early intervention can prevent accidents and ensure road safety.
Fact checked by: Natthaphol Inthasawat.
Article reviewed by: Chayanit Phongsai.