Is It Normal for a Car to Make Abnormal Noises When Accelerating?

[LaArthur]

It is not normal for a car to make abnormal noises when accelerating. Possible causes of abnormal noises when stepping on the accelerator include cold engine start-up acceleration, deteriorated engine oil, or issues with the car's half-shaft quality. Below are the relevant details: Cold Engine Start-Up Acceleration: During a cold start, the engine noise is louder than when the engine is warm. This sound is uniform, smooth, and not harsh, which is normal. In such cases, you can wait for the engine temperature to rise before accelerating. Deteriorated Engine Oil: Check the engine oil. If the oil has not been changed for a long time or has deteriorated, it can increase friction between the cylinder valves and guides, as well as in the hydraulic lifters, leading to abnormal noises when accelerating. In such cases, the engine oil should be replaced promptly. Issues with Car Half-Shaft Quality: If the car makes abnormal noises immediately upon accelerating, the issue may be with the half-shaft. Due to long-term torsional fatigue and impact forces, the half-shaft can become bent, twisted, or fractured, or the spline teeth may wear or become misaligned. This can cause the car to shake rhythmically at certain speed ranges when accelerating, accompanied by abnormal noises. The shaking may disappear or lessen when the accelerator is released. In such cases, it is advisable to visit a repair shop or 4S store for professional inspection and repair.

[JulianRose]

Hearing strange noises when stepping on the gas pedal is definitely abnormal. I've been driving for many years and am used to these minor issues. The most likely causes are a loose or worn engine belt, which produces a squeaking sound; if there's an exhaust pipe leak, you'll hear a hissing noise; or aging transmission gears, which create a clanking sound when accelerating. For safety, don't push it—pull over immediately to check, as ignoring it could lead to bigger problems like engine damage. Pay attention to the source of the noise during daily driving. You can test belt tension by lightly pressing it with your hand, but don't risk driving at high speeds—head to the repair shop right away for peace of mind. Regular maintenance and inspections can prevent most strange noises from occurring.

[Katie]

If there's abnormal noise when stepping on the accelerator, there must be a problem that shouldn't be ignored. I've experienced this before – annoying clicking sounds during acceleration, which turned out to be worn suspension components or wheel bearing issues. Continuing to drive could worsen the wear, potentially leading to loss of control or tire blowouts, which are highly dangerous. It's recommended to stop immediately and inspect the tires, chassis, or belt conditions briefly. If unsure, call for a tow truck to take it to a repair shop directly. Develop the habit of listening for unusual sounds while driving, and prioritize fixing any increasing abnormal noises. Pay extra attention to these components during maintenance to prolong your vehicle's lifespan.

[PaisleyAnn]

If the car makes noise when stepping on the gas, it's definitely not normal. I occasionally hear minor noises when driving, but persistent loud sounds indicate a problem. For example, last time my car had abnormal noises due to a clogged air filter, causing a whooshing sound during acceleration. Don't wait for a major failure—first identify where the sound is coming from with a simple check. Worn-out belts are the most common cause, producing squeaking sounds, and replacing them usually solves the issue. Regular maintenance can prevent most of these abnormal noises. Cars will inevitably develop noises over time, but timely repairs can prevent serious issues.