Man fixing a car

Have you ever experienced the unsettling sensation of your car shaking when you accelerate, only for the shaking to disappear when you release the gas pedal and coast? If so, you’re not alone. Many drivers have encountered this issue and wondered what could be causing it. This article will explore the possible reasons behind a car shaking during acceleration but not when coasting.

Before we dive into the potential causes, it’s important to note that any irregularities or abnormalities in your vehicle’s performance should be addressed promptly. Ignoring the issue or postponing necessary repairs could lead to further damage and potentially compromise your safety on the road. Always consult a qualified mechanic to diagnose and resolve the problem.

  1. Engine Misfire: An engine misfire is one common culprit behind a shaking car during acceleration. When the combustion process in one or more cylinders fails to occur properly, it can result in uneven power delivery and vibrations. Other symptoms, such as a loss of power, rough idling, or a blinking check engine light, often accompany a misfire. Faulty spark plugs, ignition coils, or fuel injectors are some potential causes of an engine misfire.
  2. Worn or Damaged Engine Mounts: Engine mounts are designed to secure the engine firmly to the chassis and minimize vibrations. Over time, these mounts can wear out or become damaged, leading to excessive engine movement and increased shaking during acceleration. Inspecting the engine mounts for signs of wear, such as cracks, sagging, or excessive movement, can help identify if they are the source of the problem.
  3. Driveshaft Issues: The driveshaft transfers power from the transmission to the wheels. If the driveshaft is damaged or unbalanced, it can cause vibrations and shake during acceleration. This issue is more commonly observed in rear-wheel or all-wheel drive vehicles. A damaged or worn-out universal joint (U-joint) or a bent driveshaft are potential causes of this problem.
  4. Wheel and Tire Problems: Uneven tire wear or out-of-balance wheels can cause vibrations, especially during acceleration. Tires that are improperly balanced or have bulges, flat spots, or other defects may contribute to the shaking sensation. It’s crucial to regularly inspect and maintain your tires, ensuring they are properly inflated and balanced and have sufficient tread depth.
  5. Suspension Components: Faulty suspension components, such as worn-out bushings, ball joints, or tie rods, can lead to vibrations and shaking when accelerating. A compromised suspension system affects the vehicle’s overall stability and may result in uneven weight distribution, contributing to the shaking sensation. Regular suspension maintenance and inspections are vital to promptly identify and rectify any issues.
  6. Transmission Problems: A malfunctioning transmission can cause shaking during acceleration. Issues such as worn-out gears, low transmission fluid, or a faulty torque converter can affect power delivery and result in vibrations. If you suspect a transmission problem, it’s essential to have it diagnosed and repaired by a qualified technician.
  7. Other Factors: In some cases, the shaking sensation during acceleration may be caused by other factors, such as a clogged fuel filter, a malfunctioning mass air flow sensor (MAF), or a problem with the exhaust system. These components play a crucial role in the vehicle’s performance and combustion process, and any irregularities can lead to vibrations.

It’s important to remember that the above list is not exhaustive, and there may be other reasons for your car shaking during acceleration. Additionally, multiple factors can contribute to the issue simultaneously. Consulting a professional mechanic and providing them with detailed information about the symptoms and circumstances surrounding the problem will aid in a more accurate diagnosis.

Is this a common problem?

Many drivers have experienced the unsettling sensation of their car shaking when accelerating. But is this a common problem? The answer is yes, it can be.

This issue has several potential causes, ranging from minor to more severe problems. One possible reason could be an unbalanced tire or wheels that need alignment. Another cause might be worn-out engine mounts or damaged suspension components.

While this may not seem a significant issue, addressing any irregularities with your vehicle as soon as possible is essential. Not only can driving with an unsteady car affect your safety on the road, but ignoring these symptoms could result in further damage and costly repairs.

If you’re experiencing shaking while accelerating in your car, don’t panic – but don’t ignore it. Consult a mechanic or research online to diagnose the cause and act accordingly.

What are some possible solutions?

If your car shakes when accelerating but not coasting, several possible solutions can help solve the problem.

Firstly, check if your tires have enough air pressure and are correctly aligned. Misaligned tires or worn-out suspension components can be a culprit for car shaking during acceleration.

Secondly, ensuring that the engine’s air filter is clean and in good condition is essential. A dirty or clogged air filter restricts airflow into the engine, causing a reduction in power output which could cause vibrations during acceleration.

Thirdly, issues with the fuel system, such as bad spark plugs or clogged fuel injectors, might be causing your car to shake when accelerating. Replacing these faulty parts will improve engine performance and prevent shaking.

Regular tune-ups from a certified mechanic ensure that all systems of your vehicle continue functioning optimally, preventing any future occurrences of this issue.

How can I prevent this from happening in the future?

Preventing your car from shaking when accelerating is an achievable goal, and there are several ways to make it happen.

Firstly, it’s essential to maintain your vehicle regularly. This includes checking the engine oil level, tire pressure, and alignment. A well-maintained car will perform better and avoid unnecessary wear and tear on parts that can lead to shaking or vibration.

Secondly, make sure you’re using high-quality fuel. Poor quality gasoline can cause engine combustion issues, resulting in a rough ride. Stick with trusted gas stations and always use premium gasoline if possible.

Thirdly, be mindful of how you drive your car. Avoid sudden accelerations or hard braking, as this can put extra stress on the suspension system leading to damage over time.

If you notice any unusual sounds or vibrations while driving – don’t ignore them! Addressing any problems before they become more significant issues that could compromise your safety on the road is essential. Regular maintenance checks by a qualified mechanic are crucial for keeping your vehicle in top shape and preventing future problems.


Experiencing a car shake when accelerating but not coasting can be alarming and uncomfortable. However, it is a common problem many car owners face, and several potential solutions exist. Issues with the tires, wheels, suspension system, or engine components could cause it. It’s essential to diagnose the underlying cause of the issue before attempting any repairs or replacements.

Regular maintenance of your vehicle can prevent problems from occurring in the future. Sticking to your manufacturer’s recommended service schedule and watching for any signs of trouble. Continue to experience shaking while accelerating despite trying out various solutions. It may be best to seek help from a professional mechanic with specialized knowledge about cars and their systems.