4 Reasons Your Diesel Engine Is Emitting Black Smoke

It can be very alarming to find out that your car is emitting black smoke. This is because it can mean that you have serious engine trouble. However, there is no need to panic when faced with this situation. Various factors can cause the black smoke. Below are some reasons why your diesel engine is emitting black smoke.

The exhaust system can have some oil leaks

The leaking of oil can be caused by the poor conditions of the valve seals. These are meant to keep the oil separate from the areas where combustion takes place. However, when it is in poor condition, it will allow oil into the combustion area. This leads to the emission of black smoke. To ensure that this does not happen again, you should replace the valve seals.

Poor fuel quality

Have you fuelled at a new station recently? If the answer is yes, then it can provide some answers why your car is emitting black smoke. The diesel fuel sold at the station might be contaminated and this leads to incomplete combustion, which causes the black smoke. The best way to protect yourself from these incidences is to always travel with a full tank of fuel if you are going to remote areas.

Problems with the injector system

It is recommended that you should change the fuel injector of your diesel vehicle regularly. Failure to change the fuel injector leads to persistent wear, which leads to various problems. As the fuel injector wears, the nozzle hole becomes bigger, and this leads to an excessive flow of fuel to the combustion chamber. Most of the excess fuel will not be burned efficiently. The black smoke from your car, therefore, arises because of the incomplete combustion of excess fuel. Make sure that the fuel injector is checked every time you take your car for service.

Overheating of the engine

Many people fail to check the coolant level regularly. As such, when the coolant runs out, the engine will overheat, and this causes the head gasket to blow up. When this occurs, it creates a direct path into the combustion chambers. Coolant in the head gasket will then flow into these chambers, and this can be evident by the emission of the black smoke.

While some of these problems can be easily solved using DIY solutions, the best approach is to take your car to a mechanic who has the experience and skills required to service diesel engines.

410 Words

About Me

Top Auto Advice The car was probably the most successful invention of the modern era. There are now billions of cars in use around the globe. Unfortunately, not all of these cars are properly maintained. In this blog, I plan to give you the inside track on buying, modifying and accessorising your car. My name is Damian and although I don't work in an auto repair shop, I spend most of my free time in my garage working on my cars. Over the years, I have learnt an awful lot of stuff about every aspect of automobile ownership so I would like to share some of my wisdom with you.




Latest Posts

Operation Guidelines to Promote Safety when Using Your End Tipper Trailer
30 October 2019
The size of end tipper trailers has been increasing. Unfortunately, the increased length of the trailers has also led to an increased risk of the rigs

What to Do If Your Four-Wheel-Drive Vehicle Won't Engage Properly
21 August 2018
Strangely enough, most people do not buy a four-wheel-drive vehicle for its four-wheel-drive capability. In the wonderful world of marketing, this typ

Should You Import a Car to Australia?
16 April 2018
While there are a wide variety of new and used cars available in Australia, you may have your heart set on a particular vehicle that you would actuall