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White Smoke From Exhaust: Know Everything



Any change in the color of the smoke, white smoke from exhaust, for example, is undoubtedly a sign that your beloved car is difficult. The severity could be changing depending on the type of smoke. Condensation gathering might cause the problem and may not have any apparent implications. However, drivers need to understand, what does white smoke mean? In this article, Car From Indian experts will give you a definite answer about the leading causes of the white smoke problem and the correct way to eradicate these disturbing queries. In the end, we also discuss some frequently asked issues that are closely related to this issue. Now, let’s go!

What Does White Smoke Mean?

White smoke is the problem when your car releases white smoke from the exhaust pipe. White smoke can be a big query or not, depending on the thickness. The white smoke is the issue of normal condensation which creates up inside the exhaust system. So if it is thin like vapor, there is nothing to worry about since it will disappear quickly. On the other hand, thicker smoke is a pretty big issue.

Thick smoke usually comes from the faulty in engine coolant, which could lead to many problems like severely damaged cylinder head, blown head gasket, cracked engine block which might cost drivers quite a lot. In this situation, we suggest not to ignore it. A coolant leak, even small, can lead to the severe risk of damage to your dear vehicles.

What Your Car Tell You By White Smoke From Exhaust

White smoke from the exhaust that looks like a thin wisp is the topic for today. And not as scary as it seems, white smoke should not be a matter of concern. The accumulated condensation is merely finding a way out of the pipe.

Broken Fuel Pumping Injection

Does your car run on diesel? If the answer is definite and if lots of white smoke comes out when starting the engine, it means the fuel pumping injection timing has stopped working.
Checking the injection or changing it on your own is not a recommendation from us since this task requires many skills which beginner drivers should not try. Instead of that, without wasting any time have your car checked by a mechanic.

Leaking Coolant

Royal Enfield engine

Another white smoke problem is the leaking coolant. The indication is apparent when white smoke arises while the car is running, but not when you start your vehicle.
The reason for this kind of white smoke is due to burning coolant that somehow got mixed up. Alternatively, else, when your car is lacking coolant, the car may heat up and exhaust white smoke. For that reason, understanding car’s temperature is also critical. Don’t run the car when it’s low on coolant – as that may cause something severer.

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Problems From Other Parts

white smoke

Often, a lot of white smoke exhaustion, when the car is running, could be an indicator of expensive and complicated issues. When the cylinder head, head gasket, the fuel filter is damaged, or the engine is clogged or cracked, white gas exhausts in a tremendous amount. Fixing or replacing these parts may be costly.

The query with such an issue is that you cannot be dilly-dallying. As time goes by, it takes a severer shape, and the cost of repair goes up outright. Regular maintenance helps you to trace out such a problem at the soonest and saves you some valuable cash.

How To Fix White Smoke From Exhaust Issue

To fix white smoke from exhaust difficulty, besides from taking it to the repair shop, you can do it at the house:

Step 1: Inspect The Intake Gasket


Intake gasket is the first section to check when you have white smoke from the exhaust

Inside the car, there is a gasket that seals the manifold to the head. These sections take the role of distribution in the combustion mixture, onward with the coolant to the separated intake port. These ports will be located in the cylinder heads. You must have understood this now: If it gets damaged, the coolant will get into the port and combustion chamber, creating white smoke while driving.

To fix it, drivers have to exclude the intake manifold and examine the intake gasket. If there is any leakage or rust, you know where to repair. If it is okay, we move to step number 2.

Step 2: Examine Further To Check The Head Gasket

car engine

Remember only to perform this step when the intake gasket is working fine. After that, we will come to the head gasket. It is a car part that seals the cylinder head to prevent the coolant from getting to the cylinder. Any leak or damage in this part creates an opportunity for the coolant to enter the chamber. Long story short, it will produce white smoke from the exhaust pipe.

If this part is still excellent, we will check the cylinder.

Step 3: Look For Any Splintering In The Cylinder Head

The cylinder head is the vehicle part that built of aluminum, which is prone to breaking in overheated conditions. This part is essential since it connects to the engine block and head gasket. Sad news for car owners: If this part is broken or damaged in any way, you have to change it.

Frequently Asked Question about White Smoke From Exhaust

Why My Car Has White Smoke From Exhaust When Starting?

Many reasons can cause white smoke. However, if you get white smoke from the exhaust at startup, it might be for these reasons:

  • A cracked or warped cylinder head.
  • Head gasket failure
  • Cracked engine block

One of the most common cause, the cracked engine block may pass coolant to leak inside the engine combustion container and cylinders, which is very dangerous and requires particular attention.

What Effects White Smoke From Exhaust When Accelerating?

The answer is either transmission fluid or burning coolant.

In transmission fluid case, the engine is sucking the fluid through a vacuum hose, which leads to the color white from the smoke. The exhaust will also have a heated oil smell. If the white smoke is coolant, your car is having a break in the cylinder head or a cracked head gasket, along with a sweet aroma.

In this situation, you can press test the cooling system if the coolant is moody or the engine has been heating. If it does not, your vehicle mostly has a leaking gasket. You need to replace it to work usually again.

When the fluid is the difficulty, drivers can fix by replacing the transmission vacuum modulator valve. Also, notice its level: If it is under, you can add the necessary type of fluid to restore the level.

What Effects White Smoke From Exhaust Smells Similar Gas?

Drivers must know the concept of smoke from cars. Usually, it is water vapor or steam, since it introduced into the chamber. For that purpose, you will have the water dripping from the tailpipe. Drivers can also see the water in the fuel or a drop in the head gasket.

You might recall it is normal, but that is the engine misfiring and pushing raw fuel out. In those situations, the car will be running rough, and drivers can smell a fresh fuel smell.
To fix this, check the fuel and replace if necessary.

What Effects White Smoke From Exhaust When Idle?

If you have white smoke from exhaust when stopping or idling, your combustion chambers engine might get oil inside, which cause them to burn off the exhaust. It will produce white smoke, along with the idle problem. It is straightforward to recognize since there is a difference between burning gasoline explosion and a burning oil explosion.
This query should be fixed soon since the longer the oil stays inside, the more damage it causes for the spark plugs, which might require replacement.
What Breeds White Smoke From Exhaust When Cold?

In the cold weather, the white smoke can be quite reasonable, but in some conditions, it is not. Consecutive white smoke while driving is one of them. If you have a diesel, white smoke may be unburned fuel or coolant going through the engine. However, mostly, it is the incorrect injector timing in the cylinders.


There is no room for overlooking the white smoke issue. Not only white smoke affected other vehicles, but it also means your car is in trouble that needs particular attention. It may cause queries for you and the other drivers if you don’t fix this before driving.

Again, all car owners require to do is to keep calm to cure their dear vehicles. For that cause, always taking care of your engine is highly recommended.
To understand more about the car smoking problem, check this video

Most significant of the cars from Japanese brands like Honda, Suzuki, Toyota, Mitsubishi, Nissan, BMW,… are provided with good engines and high-quality accessories to avoid white smoke from exhaust. Go for a Japanese car to prevent this dangerous situation.

I hope guys this post is helpful for you to understand the reason of White Smoke. If you love this post then support us by share this post with your friends and relatives.

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About author

Hello Guys, My name is Sandeep Gautam. I am the founder of Indiatechmoney. I have done my masters from IIT Roorkee. My interest is in Business, technology, and blogging. I want to give the best information about the business, technology and blogging through this blog.
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