Under normal conditions, the smoke comes out of any exhaust system. It is a consequence of internal combustion. However, there can be a situation where a white haze or cloud is trailing behind. There can be many causes of excessive white smoke from the exhaust, as well as solutions to this problem.
Causes of white smoke from exhaust
Leaky exhaust system
The first cause of white smoke is a leaky exhaust system. Probably the simplest fault in this situation. It is characterized by an increase in white smoke during wet weather - rain, humidity, or immediately after it. This means that in your car there is a leak through which water collects in the exhaust system, which heated to a very high-temperature act like a kettle. Then, in addition to exhaust fumes, water vapor escapes into the pipes. This is dangerous insofar as when this water collects too much it can lead to too strong a load on the mount, which eventually leads to its falling off. In this situation, unfortunately, you are not able to do anything on your own. You need to take your car to a mechanic, who will find the leak and fix it with special mortar available in automotive stores. In the worse case, it may be necessary to replace the exhaust system.
Combustion chamber leak
The second reason for white smoke is a leak in the combustion chamber. If you are sure that there are no leaks in the cooling system and at the same time the coolant magically disappears, then the leak may be in the combustion chamber. Unfortunately, this can result in high repair costs. The solution to this problem is to frequently observe the level of coolant and the condition of the coolant pipes (sometimes they fry and need to be replaced). However, you must not neglect this topic, because prolonging such a defect can only result in even higher repair costs.
The third reason is the usual water vapor. In this situation, you do not need to panic. When temperatures outside drop (e.g. in winter), it will be the only natural to see white smoke coming from the exhaust pipe. Of course, this smoke will only occur in small amounts. However, if you are not sure whether it is just water vapor, it is better to consult a mechanic. You can go to a vehicle inspection center where you can obtain information on what is coming out of the exhaust system for a small fee.