Why my car accelerates alone

Cars are one of the most comfortable devices that can make our lives. We use them in many situations, whether to go to work, to go on a trip or, simply, to move from one place to another within our own city. However, whether they are old or new vehicles, it is important that the cars pass the corresponding revisions if we want to avoid that they break down and may end up giving us a dislike. In this sense, some of the most common problems are usually those related to acceleration, which may be due to idling and failure to control the acceleration of the vehicle when the accelerator is not pressed. If you are asking yourself the question of why my car speeds up by itself, read on and we'll help you solve it.

Why the car accelerates only in gear

When a car accelerates on its own, especially when we are at rest, the most common is that the failure is related to idling . To speak of idling is to refer to the minimum revolutions per minute that the engine has to give to keep going. That is, when we are in motion, the vehicle's own action allows the engine to keep running smoothly.

My car accelerates only at idle

However, when we are parked with the engine running or waiting at a red light, it is necessary that the engine continues running so that, when the throttle is activated again, the vehicle moves without the need to restart it.

This is achieved by an internal activity of the car engine, which maintains a minimum number of revolutions per minute in the engine even with the vehicle stopped. These minimum revolutions are known as idling.

You may also be interested How to clean the car engine.

If the car is revolutionized only in progress ...

Although it is important to bear in mind that this failure can be due to different faults, the most common is that it has its origin in a bad control or idle operation by the vehicle itself. However, to make sure of it, the most appropriate thing will be to take the car to the workshop so that a qualified mechanic supervises it and can specify what the exact problem is.

If the problem is in the idle ...

In the cases in which the problem is due to a bad idle operation, the most common will be that the problem is in the part that controls the passage of air inside the engine. This piece is responsible for controlling the engine revolutions and, when it does not work properly, it is when the vehicle accelerates excessively and improperly.

The best way to prevent this from happening is to clean this valve every so often, or approximately every 40, 000 kilometers traveled, as it can accumulate traces of dirt and dust that cause it to fail and can not perform its work properly.

If the problem is in the sensor ...

On the other hand, although the most common is that the faults related to the automatic acceleration of a car are due to this piece that regulates the operation of the idle, another possibility, also quite common, is that the fault is located in the sensor that indicates the position of the accelerator.

In these cases, the sensor can not correctly locate the position of the accelerator and, consequently, does not send the signals correctly to the vehicle and can not adequately control the car's idle speed.

My car goes up revolutions alone - SOLUTION

The first thing that must be done to solve a fault related to an inadequate acceleration in a vehicle will be to be sure of the type of fault in question. As we have said, the most common is that it is due to problems related to idling and some of the parts of the vehicle that are responsible for its proper control and operation.

However, whether these types of breakdowns are different or different, it will be necessary for the car to be checked by a professional and properly qualified mechanic, who will be the right person to locate the fault and then be able to solve it.

How to repair the idle of a car

Usually, when the problem is in the valve that controls the passage of air inside the engine, it is usually enough to clean the piece correctly so that the car can work again without problems.

In cases where the piece is too damaged, the only solution will be to replace it with a new one, which may be more expensive, but it will be the most effective way to repair the fault.

How to repair a car's sensor

Finally, when the fault is in the sensor that locates the position of the accelerator, the most common will be to repair this fault by recalibrating the sensor, which is usually a simple task if the equipment is in good condition.

Now that you know why my car accelerates on its own, you may also be interested in this other article about why my car emits black smoke.