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What Causes Car Body Shaking During Acceleration?

4 Answers
RhettDella
07/29/25 4:31pm

The reasons for car body shaking during acceleration include the following: 1. The most common cause of car shaking is a dirty throttle body or excessive carbon buildup in the fuel injectors. When there is too much carbon buildup inside the engine, the gasoline sprayed by the cold-start injectors is largely absorbed by the carbon deposits, resulting in an overly lean air-fuel mixture during cold starts. This causes the combustible mixture to fluctuate between lean and rich, leading to idle shaking after a cold start. 2. Check the condition of the spark plugs, high-voltage wires, and ignition coils. Poor performance in the ignition system or weak spark plug firing can also cause such issues. 3. Abnormal fuel pump pressure or incorrect readings and poor performance of the intake pressure sensor can also lead to car body shaking. 4. Car shaking can be related to the aging of engine mounts (also known as engine mounts or rubber mounts). Engine mounts act as the shock absorption system for the engine, absorbing minor vibrations during operation. If the engine mounts fail, these vibrations can transfer to the steering wheel and the cabin, causing shaking during idle.

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McElisa
08/14/25 5:41am

I'm an experienced driver and have seen many cases of this kind of shaking. When your car shakes violently during acceleration, it's most likely an issue with the engine components, such as old spark plugs causing poor ignition or unburned fuel due to worn-out coils. It could also be the result of accumulated minor problems, like unbalanced tires causing vibrations while driving, or damaged wheel bearings affecting steering stability. This is a pretty common issue—I've encountered it several times myself, and it always makes me nervous on the highway. Safety first—don't take it lightly. Get to a repair shop as soon as possible and have a mechanic use diagnostic tools to check if there are any issues with the drivetrain. Continuing to drive without fixing it could lead to more serious damage. After all, regular maintenance is key to keeping an older car running smoothly and safely.

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StAdriel
10/12/25 8:18am

As someone who frequently tinkers with cars, I find acceleration vibrations quite annoying. There are many potential causes, so start with simple checks. For example, unbalanced or worn tires can cause shaking, especially at high speeds. If the issue persists after replacing tires, it might be due to engine carbon buildup causing uneven fuel injection - time to clean the injectors. Alternatively, check the ignition system as aging cables can affect performance. I've learned to do some maintenance myself, like changing spark plugs to save money, but for complex issues, it's better to visit a shop. Never ignore severe vibrations as they can damage chassis components. Safe driving is paramount, and regular inspections can prevent such problems.

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SanDaisy
11/26/25 2:33am

For commuters, experiencing acceleration shaking on the road is a major hazard. Common causes include a faulty suspension system, such as failed shock absorbers, which becomes more noticeable when turning or going over bumps. Another possibility is underinflated or deformed tires, so regularly check tire pressure and wear. Additionally, engine-related issues like insufficient fuel supply, clogged fuel lines, or faulty spark plugs can also be culprits. Ignoring these problems may lead to loss of control. After stopping, promptly contact a technician for inspection to ensure driving safety. Don't ignore minor signs to save money.

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