If Black Smoke Comes Out from the Exhaust

 

Black smoke coming out of the exhaust, which is a nightmare for car drivers, is not a positive sign. So why does black smoke come out of the exhaust? There are many different reasons for this situation. In this article, we explained in detail the main reasons for smoke coming out of the exhaust. In short, overloading the car is among the reasons for smoke coming out of the exhaust. In such a case, there is no need to worry. Now let's look at the important reasons for black smoke...

Other Causes of Black Smoke from Exhaust

One of the clearest answers to the question 'Why does a car emit black smoke?' There will be a blockage in the engine's air filter. Since the air cannot come out at a sufficient rate, the engine becomes difficult and this is reflected outside as black smoke. Unbalanced injection pressure is another reason for black smoke. More or less injection pressure, it will turn into black smoke. If oil gets into the gasoline you use in your vehicle, the exhaust will emit black smoke. What we have explained are just a few of the options; if you are experiencing such a situation, you can get technical help. So you can find out the real cause of the problem. There are other reasons for smoke coming out of the exhaust. Let's take a look at them now:

 

Weather

Weather is also among the external factors that cause black smoke. In cold weather, black smoke may rise when you start your car. This situation occurs frequently during the winter months. Because fuel combustion quality decreases in cold weather.

 

EGR Failure

Another reason for smoke coming out of the exhaust is EGR failure. This malfunction, which causes the vehicle to emit black smoke, causes the car to operate unstable. It would be great to get technical support.

 

Sudden acceleration of the vehicle

Excessive driving of the vehicle is also among the causes of black smoke. Sudden acceleration of the car or excessive acceleration is not a good thing in terms of driving technique and car health. The cause of this black smoke is not due to malfunction and is seen as user error.

 

What Do Colored Smoke Coming Out of Exhaust Symbolize?

Cars emit not only black smoke, but also smoke in different color tones indicating malfunctions. Now let's explain the reasons for these one by one:

 

White Smoke: It is thought that white smoke is caused by cold weather. But in fact, this is generally due to the coolant evaporating or leaking into the combustion chamber. If you experience such a situation, it would be beneficial to get technical support immediately.

 

Blue Smoke: It is the most common condition after black smoke. If your car is producing blue smoke, it is because engine oil in the pistons has entered the combustion chambers. For this reason, the engine burns the leaked oil and releases it as blue smoke.

 

Black Smoke: We have given extensive information above about smoke coming from the exhaust. We stated that there are many reasons for black smoke. In summary, the vehicle's excessive fuel consumption and some malfunctions cause this situation.

 

Gray Smoke: Just like black smoke, gray smoke has many different causes. The oil burning of the turbo appears as a gray color. You can detect this situation by looking at whether the car oil is running out.

 

Why Does a Diesel Vehicle Emit Black Smoke?

Black smoke occurs most often in diesel cars. The main reason for this situation is user error, not the mechanics of the vehicle. Let's look at the reasons for black smoke in diesel cars.

 

Sudden Acceleration and High RPM

The car adjusts the air-fuel mixture with the reactions it receives from the accelerator pedal. Black smoke that appears after sudden acceleration or excessive acceleration is a typical fuel combustion problem. Some of the sudden excess fuel and air are expelled before they are fully burned and are released as black smoke.

 

Fuel System Malfunctions

Possible malfunctions in fuel system parts such as the car's pump system and injections reduce the fuel combustion quality of the vehicle. This situation causes loss of performance in the car, stalling, idle disturbances and smoke problems. Checking all fuel system parts will correct the problem.

 

EGR Faults and Weather

We have explained these two external factors in detail above. While the malfunction in EGR causes problems such as black smoke and unstable operation in vehicles, cold weather reduces the fuel combustion quality and causes black smoke.

 

Quality of Diesel Used

If black smoke comes out of the exhaust, it is useful to review the fuel you use. If the diesel used is of poor quality and contains some additives, it causes black smoke. In such a case, it would be beneficial to change the place where fuel is purchased. If a diesel engine emits black smoke, it is important to have it checked.