Car Jerks When Accelerating: Solutions & How To Fix?

Did your car keep jerking when accelerating? You are confused and don’t know what to do? Car jerks can be the sign that shows your car has some problems.

This can be the symptom of insufficient internal combustion or something is wrong with the fuel pipe. 

By acknowledge this symptom and quickly solve it, you can avoid more serious issues in the future. This article will give you information about why car jerks occurs, as well as how to solve it.

1. Why Does Car Jerks Happen?

There are many reasons for why does your car keep jerking. These are normally small problems, however, it can lead to a much bigger problem if not treat properly

  • Fuel Pipes

​Bad fuel pipe is probably one of the most common problems that makes your car jerking or hesitating.

Sometimes, rats can break into your garage and chew out some of the fuel pipes. Therefore, the fuel will disrupt when it goes to the engine and cause jerks to your car.

  • Clogged Catalytic Converter

Another reason for why your car jerks is a block catalyst. A catalytic converter is an important part in your emissions control system.

If your fuel mixture is too rich, it can cause the catalytic converter to clog. Therefore, your car cannot eject gasses properly, which cause jerks.

  • Dirty Fuel Filter, Tank and Injectors

​These are three common reasons that makes your car operates improperly. The easiest thing to check the fuel filter.

If you haven’t cleaned it in such a long time, consider cleaning it immediately. A dirty filter will cause insufficient fuel supply to the car’s engine. This is why your car jerks when accelerating.

Similarly, a dirty fuel tank will also affect your car’s performance. The algae is constantly growing inside the tank.

After a period of time, they will eventually turn black and plug up your tank. The situation is even worse if you are using SVO or biodiesel.​

In addition, just like fuel tank, sooner or later, eventually, your fuel injector system will also get all clogged up. Therefore, fuel cannot travel smoothly and sufficiently to the car engine.

You also may be interested in: Best Fuel Injector Cleaner

  • Faulty Spark Plug & Spark Plug Wires

​Spark plugs are important parts of your car. They ignites the air and the fuel mixture in the cylinders. Your car can move due to this ignition.

Therefore, you need to clean or check it regularly, as well as change it if needed. If your spark plug is still new but your car still jerking, the problem might be in the wires.

  • Drained Acceleration Cable

​If the acceleration cable is worn out, it can make your car jerk. Therefore, make sure to do checkup for your car regularly, in order to replace any needed components. You can take the car to a mechanic. A professional will handle these issues more properly.

  • Motor Winding

​The wear out of motor winding can also make the car jerks. You should bring your car to a professional if any of the motor winding breaks.

  • Engine Tuning

​If you do not find any problem with other parts, you should take your car to a mechanic in order to tune the engine. After tuning the engine, your car will have a better performance.

  • Imbalance Carburetor

​If your car use mixtures of fuel and air to operate, the malfunction carburetor might have problem in blending a balance mixture. You should take your car to a professional to find out and solve any problem.

​2. Solutions To Car Jerks

So, what should you do next after find out the reason why your car keeps jerking when accelerating? Depends on the problem, you can have different solutions.

If the jerking happens because of any dirty components, what you just do is just to clean it. You can also replace any parts that had been there for too long.

If the problem is much more complicated, taking your car to the mechanic is a wise solution. A professional will know exactly what to do with your car. Don’t try to solve everything by yourself, you may make everything worse. Leave the job to the professional.

Moreover, from the beginning, when buying a car, you should consider car that use diesel as fuel. Of course, it can still clog up your tank. However, it is still better than SVO or biodiesel.

Another thing that you should do is to tune the engine annually, in order to increase the performance of your vehicle. You should let a professional mechanic do this job.

In addition, if you leave your car outside in the coldness or rain, it will jerk when accelerating. Therefore, remember to keep your car inside the garage when it is raining or cold outside.

Take your car to maintenance service is also a great solution. By this, you can prevent your car from jerking while accelerating. Your car will get oil change or replace any broken components.

3. How Inspection Service Works?

The best way to know exactly why your engine hesitated when accelerating is to have inspection service.

Basically, an inspector will examine your car to find out the problems and solve them. Getting a professional inspection for your car will give you a piece of mind.​

The inspector will give you a detailed report stating what cause your car to hesitate. He or she will also give you the expected costs to repair any needed parts.

In order to know the issue, the inspector will use a code reader (or also called a scanner) for better identification of the issue.

This scanner will provide a trouble code as well as the intake information of oxygen and fuel. By using these information, the inspector will be able to fix your car properly.​

Depending on what the inspector believes to be the issue, he or she will have different solutions for you. For example, the mechanic will clean or replace your fuel injectors and fuel filter if they are dirty, faulty or if there is any leakage happened.

The inspector will ensure that all of the new components work properly in any situations. This is why you should go to an inspection service instead of trying to fix everything by yourself. Inspectors will properly replace any broken parts. They will also ensure that your car is already safe to drive.

4. How To fix It By Yourself

Go to the mechanic may cost you a lot. They can charge you highly for simple works such as cleaning a tank or anything like that. Therefore, if you want to save costs, you can still try to fix it yourself. Here is a guide on how to clean a flow meter sensor.

Initially, what you will need is a screwdriver and a spray can of sensor cleaner. You can consider the brand “CRC”, which is one of the best electrical parts cleaner brands.

Next, you need to take two screws out by using the screwdriver. Be careful not to drop them. Then, pull the Mass flow sensor out.

After that, you need to disconnect the wiring harness by pushing a plastic clip as well as pulling the plug away as the same time.​

The next job is just to clean the sensor by using the cleaner spray. Just spray it directly on the sensor.

Don’t forget to wear eye protection as well as stay away from open flames or any heaters. Spray it carefully from inside out. Make sure that you clean every dust and debris inside the sensor.​

The final step is to put the sensor upside down to eliminate any excess liquid. Then, allow the sensor to dry completely before attaching it into your engine.


If a vehicle jerking or hesitating when accelerating, it is dangerous to drive. Therefore, it is important to fix your car properly before driving it.

You can choose to go to a mechanic or fix it by yourself. However, you should only do it yourself if the problem is just because a dirty component inside the engine. If it is more complicated than that, hire a mechanic is a wise solution.

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