We Buy All Cars, Running or Not!

Car Hesitates When Accelerating: 10 Potential Causes

Symptoms of a failing transmission.

If your car hesitates when accelerating, here are the 10 common causes:

  1. Problems with the throttle position sensor
  2. Troubles with a vacuum leak
  3. Issues with the fuel system
  4. Problems with the ignition system
  5. Issues with the fuel injectors
  6. Damages in the oxygen sensor
  7. Problems in that mass airflow sensor
  8. Malfunction in the manifold absolute pressure sensor
  9. Troubles in the exhaust gas recirculation valve
  10. Low-quality fuel 

Have you ever noticed that your engine stops for a little bit and then moves? That's called vehicle hesitation when acceleration. This is noticeable and can be very stressful for inexperienced drivers. However, understanding the main causes is extremely important for every driver.

⚠️ If It's Broken, Don't Fix It - Get Paid Cash for Your Vehicle ⚠️

Since your vehicle consists of hundreds of interacting components, sometimes it can be overwhelming to determine the real cause behind your vehicle's hesitation when accelerating. That's why Automotive Experts put together a summary of the common causes for this issue. Once you familiarize yourself with these causes, you should narrow down the list and get an idea immediately about what's going on wrong.

With the different causes resulting in hesitation when accelerating, sometimes repair costs might be as simple as things you can do yourself. However, there are some instances where the issue might be related to a significant problem that requires thousands of dollars on repairs.

Car hesitates when accelerating: 10 potential causes

Many inexperienced drivers might take the wrong actions whenever they deal with a vehicle that has a patient during acceleration. For example, some of them might continuously keep hitting the gas pedal, holding for the vehicle to accelerate, making things worse rather than fixing.

When your car hesitates when accelerating, it shouldn't be a big deal if this happens once in a while. However, if you notice that the issue continues to happen regularly, it means that you won't be able to drive your vehicle safely, and you might get involved in major car accidents that could be extremely dangerous.

In these instances, it is best to understand the common causes for vehicle hesitation when accelerating. Let's take a closer look below at what Automotive Experts recommend:

1.       Problem with the throttle position sensor

The first and most common problem that might lead to vehicle hesitation when accelerating is a problem with the throttle position sensor. The sensor is responsible for monitoring the behavior of the throttle valve and its position when it doesn't work well. It leads to an imbalance in the air-fuel mixture that impacts your vehicle's performance when the engine doesn't receive the right amount of air to fuel mixture; it leads to issues with the efficiency of this engine, and that's why you'll notice it in the form of vehicle hesitation when accelerating.

When this sensor goes bad, the only solution is to replace it.

2.       The trouble with a vacuum leak

The hoses around the engine last forever, and there will be a point in time where you have to replace them. If there are any cracks or damage and one of those hoses, it leads to what's known as a vacuum leak. A vacuum leak is not a good thing, and it can simply result in problems in your engine performance, which you'll notice in the form of a car hesitating when accelerating.

Fixing the problem needs your mechanics to check all these hoses to determine which hose is not working properly. In some instances, your mechanic can fix some of them but in most scenarios. First, you'll need to replace any broken hose.

3.       Issues with the fuel system

The fuel system consists of many interactive components, and if there is any problem with one of those components, it impacts the flow of fuel to the engine. Since the engine relies on you and is at work and generates energy, it will hesitate when you accelerate, especially if you try to add more stress on the engine by pressing the gas pedal to accelerate more.

It's hard to tell what can happen with your fuel system, but it needs to be replaced. Whatever is causing the problem needs to be replaced. He should have certain tools that help him identify the root culprits Within the fuel system.

4.      Problems with the ignition system

When the air-fuel mixture gets inside the cylinders, it needs a source of ignition to generate the required amount of energy. When there's a problem with the ignition system, the air-fuel mixture won't be ignited, and therefore, your engine will not generate any energy. Sometimes the issues with the ignition system might not be continuous, and that's when you'll still have some power. Still, as you press on the gas pedal, your vehicle will hesitate because it's not producing the right amount of energy you were trying to achieve.

In What scenario has, the ignition switch or some other components might go wrong, and that's why we recommend that you follow the recommendations on your vehicles or manual to inspect and replace some of those components as recommended. Failing to do so leads to beyond the vehicle's hesitation when accelerating. So those, no matter what's preventing you from doing this repair, should not be worth it because you don't want to deal with issues that could cost you thousands of dollars on repair.

5.      Issues with the fuel injectors

As the name suggests, the fuel injectors are responsible for sending the required amount of fuel from the fuel tanks to your engine cylinders. When there's any problem with these injectors, you'll notice that they just performance is different than what it used to be before.

That's why I don't want experts to recommend inspecting these injectors regularly and learning when to replace them. But, unfortunately, they don't deal with this situation.

6.      Damages in the oxygen sensor

Your engine contains a very important sensor that is responsible for detecting how much oxygen is Burns and coming out of the exhaust system here this information is very critical for your engine to determine how much fuel to mix with the air, and that's why when the oxygen sensor is not working properly, your engine's performance will be impacted.

One of the very common consequences when dealing with a bad oxygen sensor is troubles with your vehicle's performance, especially when you accelerate. However, a bad oxygen sensor also leads to other types of troubles, and that's why even if the sensor is very small, you must maintain it in a very good condition to prevent dealing with major complications that you never want to deal with.

7.      Problems in that mass airflow sensor

Your vehicle's engine system contains a specific sensor responsible for monitoring The amount of air getting inside the cylinders. Your engine takes this information and translates it into a specific amount of fuel that has to be mixed with the air. When the sensors are not working properly, it's since full see information, and your engine might consume more fuel than it should, impacting how your engine performs.

8.      Malfunction in the manifold absolute pressure sensor

Another important sensor in your engine that you need to maintain is the manifold absolute pressure sensor, referred to as the map sensor. You've probably heard about the map sensor previously, but maybe you're not aware of what this sensor is doing?

It does a complicated job, but if we want to put it in simple words, it tells your vehicle's engine about how much load is put towards the engine, so the engine adjusts the air-fuel mixture and performs accordingly. Therefore, any problem with the sensor leads to major issues in the engine performance, and that's why every single component around the engine compartment must work properly to achieve the best results of your engine and never deal with situations where your car hesitates when accelerating.

9.      Troubles in the exhaust gas recirculation valve

There is a valve cold at the exhaust gas recirculation valve within your engine compartments. It is responsible for recirculating the gases and bringing them back to be used again in the end. If this valve is broken, it leads to a severe vacuum leak inside your vehicle that could damage the engine. Therefore, you must familiarize yourself with the common symptoms indicating that the exhaust gas recirculation valve is not working properly so you can fix it before dealing with major complications.

10.  Low-quality fuel 

Finally, did you know that your vehicle's fuel quality has to do with your engine performance? Yes! If you're using the wrong fuel, it leads to contamination building up inside the engine and leading to situations where your car hesitates when accelerating.

Of course, you don't have to go with the highest quality type of fuel in your gas station because that might not be needed.  In other, you should follow what's recommended in your vehicle's owner's manual. If Manuel is asking you to use a specific type of fuel, you should not use one lower quality than this fuel. However, you can still go with a little higher quality fuel depending on your needs, but it is critical to understand that this is not required for a new vehicle to perform just fine as long as you choose but a respite in your vehicle's owner's manual.

How to repair a car hesitating when accelerating?

As we indicated earlier, your vehicle might deal with issues related to hesitation when accelerating because of any of the mentioned problems. Therefore, you need to understand first what causes the issue before discussing repair costs and repair options.

For example, if you confirm that whatever you're dealing with has to do with the low quality, all we need to do is replace the fuel and use a better quality. However, if you've confirmed that the problem is internal sensors, you must replace them immediately before dealing with other complications.

And that also translates to different repair costs that could range from as low as whatever the better fuel would cost you to as high as replacing the entire engine in cases of major damages. So you must keep an eye out for any vehicle hesitation and take it seriously before it becomes a major problem beyond repair.


When your car hesitates when accelerating, it can be a very stressful situation, especially if you're driving in traffic. Unfortunately, the problem might be linked to a major internal tissue around your engine compartment, which means that you should not ignore it, and you should summarize yourself with all the potential causes that could lead to vehicle hesitation when accelerating.

This article provided you with 10 common causes of this stressful situation. These cases require immediate attention, and sometimes repair costs might Pi law, which means that you'll need to evaluate your situation carefully before spending a penny. On the other hand, if you realize that your vehicle's cost is close to the repair total, it might be worth selling it instead of wasting your time and energy trying to make it run.

If you're planning to sell a vehicle with vehicle station problems, you might find it a little bit challenging to convince a potential buyer to purchase your vehicle. That's why we recommend that you get in touch with cash cars buyer who guarantees to buy a vehicle and remove it in no time!

Cash Cars Buyer is one of the top-rated car removal companies in the nation that guarantees to pay you the top dollars and provide you with free towing despite your living location around the United States.

Our process is very straightforward and doesn't take more than a couple of days to get your car removed safely and for the most money.

All it takes you is to:

  • Describe your car’s type and condition
  • Receive our instant free quote
  • Accept the quote
  • Get your car removed and receive your cash payment on the spot!

To learn more about our process and our teen, you can reach out to us by giving us a call at 866-924-4608 or visit our home page click on the free instant online offer.

© 2022 Cash Cars Buyer. All Rights Reserved. Terms & Conditions | Privacy Policy | Sitemap