Why Does the Car Make Abnormal Noises When Driving at Low Speed on Flat Roads?

[LaAshlyn]

Abnormal noises when driving at low speed on flat roads may be caused by loose left front components or damaged and deformed parts. Here is more relevant information: 1. Avoid downshifting without blipping the throttle: When downshifting, on gears with synchronizers, you can downshift without blipping the throttle by using a single clutch, but this can easily lead to component wear and premature damage. Therefore, it is recommended to use the double-clutching method with a throttle blip for downshifting, regardless of whether the vehicle has synchronizers. 2. Troubleshooting method: First, lift the vehicle and manually check whether the tires are loose, whether the steering linkage ball joints and tie rod gaps of the left front wheel meet the standards, whether the lower control arm is damaged or deformed, whether the left front shock absorber is leaking or failing, and whether the half-shaft dust boot seal is damaged or leaking. After confirming and eliminating these issues one by one, you can clearly identify the source of the problem. Using the direct assembly replacement method will provide better assurance.

[StStephanie]

When driving at low speeds on flat roads, I've encountered strange noises several times myself. Usually, it's the suspension system causing trouble, such as aging shock absorber bushings or suspension arm ball joints, which can make squeaky sounds with slight vehicle vibrations. The braking system is another culprit—if the caliper doesn't retract smoothly or the brake pads aren't aligned with the rotor, you might hear a hissing sound when turning at low speeds, which can be quite annoying. Insufficient tire pressure or uneven tread wear can also produce noise at slow speeds; I once found small stones stuck in the tire tread. If the driveshaft in the transmission system is loose or there's an issue with the differential, the noise is even more noticeable during low-speed movement. Don't ignore these sounds—get the suspension and brakes checked early at a repair shop. Spending a little to fix them can prevent more serious failures and safety risks. That's how I handle it, as delaying repairs might lead to faster tire wear or loss of vehicle control.

[McLuna]

Low-speed abnormal noises on flat roads are often related to chassis or braking components, as I've seen in many similar cases. Worn suspension control arm bushings can cause friction sounds when the vehicle shakes, and aging shock absorber mounts are also a common cause. In the braking system, stuck caliper pistons can continuously rub against the discs at low speeds, while foreign objects or deformities in tires can also cause abnormal sounds during slow rolling. Problems with the differential or driveshaft universal joints can amplify noises, especially during low-speed turns. Identifying the source of the noise is crucial—for example, front wheel noises may indicate suspension issues, while rear wheel noises could point to drivetrain components. Start by checking tire pressure and visible parts yourself, but if the issue persists, it's best to consult a professional technician for a proper diagnosis to prevent major problems—safety should always come first.

[DeMadison]

When driving slowly on a flat road, the car makes rattling noises. With my years of driving experience, I believe it's mostly due to aging components. Loose body structures like engine mounts or exhaust pipe hangers can cause clunking sounds, while hardened suspension rubber bushings that have lost elasticity can produce noises with slight bumps. If tires have long-term irregular wear or uneven pressure, noise increases at low speeds. Don't overlook interior issues either—loose door liners or center console panels can also create rattles during bumps. Addressing these abnormal sounds promptly can extend part lifespan. I make it a habit to regularly inspect chassis fasteners and suspension systems to avoid higher repair costs down the line.