White Smoke Coming Out Of Air Intake, What To Do ?

A clogged air filter is extremely unlikely to cause an engine to emit white smoke. White smoke usually indicates that water (or coolant) has entered the combustion chamber. This is a sign that the head gasket has blown.

Imagine u decided to travel on hills and suddenly white smoke coming out of air intake. Now, what to do? As a result, in today’s article, we’ll explain what produces white smoke, and how to get rid of it, as well as answer some other questions about it.

Causes Of Car Blowing White Smoke From Exhaust

One of the most common sources of white smoke is completely harmless. Although, there are times when you should actually listen to white smoke coming from your car’s exhaust since it could signify a significant problem.
If you start a gas-powered vehicle and find white smoke coming from the exhaust pipe, there are a few things that could be causing this.

1. Condensation

This is a common occurrence, mainly in cold regions. It’s usually nothing to be worried about when it’s cold outdoors and you notice white smoke when the computer boots up.

Whenever hot or warm emissions join cold surrounding air, condensation and steam are created. After a small time of driving, the white smoke should vanish.

It’s natural for drivers who have lived in a hot region, such as California, to be cautious about this, but it’s quite typical and safe.

2. Coolant Leak

Your coolant may be flowing inside if white smoke begins to emanate from the exhaust pipe after the engine has charged up or when accelerating.

The most visible indicator of interior coolant leaking is when white smoke billows from the exhaust pipe and releases a pleasant aroma in the air. If you notice white smoke and a sweet odor, you have a coolant leak.

A split in the cylinder head or maybe the engine block is the most typical cause of coolant leakage. Even if the split is minor, internal coolant can leak out and pollute your car’s oil.

The milky colour of the smoke is due to the mixture of coolant and engine oil. Allowing a modest quantity of coolant to reach the combustion chamber can produce white smoke.

If the coolant level is low and the cooling system isn’t maintained regularly, your machine will begin to heat. Your head gasket will fail as a result of this since it won’t be able to seal correctly when it’s overheated.

As a consequence, the structural parts of your engine will be affected, and it will wear out more quickly.

3. Piston Ring Or Valve Seal Leak

When it relates to smoke, failing valve seals or piston rings are another possibility. Due to malfunctioning seals or piston rings, oil spills into the combustion chamber, where it mixes with the gasoline and burns. As a result, the exhaust manifold produces white or light bluish smoke.

The easiest way to solve this issue of white smoke is to drive your car to the local auto body shop as soon as you see it. However, if you are attempting to repair this yourself, never remove the coolant reservoir cap while the car is still running, since the engine will be extremely hot and you will suffer a significant injury.

Examine the coolant quantity in the reservoir once the car has had time to cool down. If the coolant level looks to be normal, you’ll need to have your cooling system pressure examined so you can figure out where the leaks are coming from.

4. Bad Fuel Injector

A defective fuel injector will give too much fuel to the combustion chamber, either because it is stuck open or because the o-ring is leaking. Because the surplus fuel cannot burn effectively in the engine, it escapes through your tailpipe as white or grey smoke.

The answer is to replace the defective injector (or its o-ring).

Because determining which fuel injector is defective is difficult, many mechanics will recommend replacing all of the injectors, which are quite inexpensive in most situations, depending on vehicle usage.

5. Incorrect Injector Pump Timing (Diesel Engines)

A diesel engine necessitates precise injector pump timing and fuel pressure. When the timing is off, your engine will run rich, causing the fuel to not completely burn and instead exit the exhaust as white or grey smoke.

How Do You Fix White Smoke Coming Out Of Air Intake?

A diesel engine necessitates precise injector pump timing and fuel pressure. When the timing is off, your engine will run rich, causing the fuel to not completely burn and instead exit the exhaust as white or grey smoke.

1. Gasket For The Intake Manifold

Examine The Gasket On The Intake Manifold

When you observe white smoke coming from your exhaust, the first thing you should examine is the intake manifold gasket. As you may know, the gasket that seals the manifold not only transfers coolant but also oxygen to the engine. If the intake gasket fails, the engine will overheat owing to coolant, air, and gas leaks. Remember that most gaskets are made of rubber or plastic. As a result, it is vulnerable to damage from excessive heat. It can be broken or damaged, but if caught early enough, it can be easily fixed.

Examine The Head Gasket As Well

After you’ve checked the intake gasket, it’s time to examine the head gasket. The purpose of this gasket is to seal the head to the block. Its primary purpose is to keep coolant from going where it isn’t supposed to. If there is a problem with the head gasket, it must be repaired right away.

Look For Cracks In The Cylinder Head With A Magnifying Glass

The cylinder head is attached to the engine block and head gasket, as you may know. Because it’s composed of aluminum, it’s prone to warping or shattering if your automobile overheats, causing the white smoke to be released. As a result, it is vital to thoroughly inspect it and, if a crack is discovered, to replace it as soon as possible.

2. Coolant Level

Level Of Coolant Check The Level Of Coolant

The first step is to assess the coolant under the hood of your car. However, make sure the engine is completely cool before removing the radiator or reservoir lid. If the engine is hot, wait 30 minutes or so for it to cool down before checking the coolant.

The Coolant Reservoir Should Be Opened

Open the coolant reservoir after the engine has cooled to examine if the coolant level is the source of the white smoke. Look inside the coolant chamber or stick a stick into the reservoir to see how much coolant is present. Remember that the stick will tell you exactly how much coolant is left in your car, which is more precise than looking into the coolant chamber (what else are you going to look at it with?).

Examine The Engine’s Other Components

If the coolant level is sufficient, continue on to other parts of the engine, such as the cylinder head, head gasket, and even the engine block. Examine these components for any fractures or corrosion that could cause the coolant to mix with the oil or fuel. If it’s possible, you should also run a cooling system pressure test to figure out which part is producing the leak.

Frequently Asked Questions:

Here are some frequently asked questions about white smoke coming out of air intake:

1. Is It Possible For An Intake of Manifold To Produce White Smoke?

The intake manifold is leaking.

If the engine has coolant flowing via the intake manifold, a leaky intake manifold gasket might create white smoke from the exhaust. This symptom is not caused by a dry intake manifold.

2. Why Is It That Smoke Is Coming Out Of My Air Intake?

Smoke rising from the air intake

When the engine is cranked backward a little, it can produce smoke from the intake.

3. What’s The Best Way To Get Rid Of White Smoke?

A broken or leaking head gasket causes coolant to seep into your cylinders, causing this to happen. You may need to replace your head gasket in extreme circumstances. To seal the head gasket at the first hint of white smoke, use a head gasket repair treatment.

4. Is It Possible For Defective Valves To Create White Smoke?

Oil can seep into the combustion chamber if a valve seal loses its hold or piston rings get worn. This stray gasoline then combines with other engine components and burns, releasing white or blue smoke from the exhaust manifold.


I’m not sure there’s anything else we can say about white smoke coming out of air intake. White smoke, like black smoke and other sorts of smoke coming from your exhaust, is not something to disregard, as you have learned. Smoke not only causes problems (implied), but it can also cause problems for other automobiles traveling behind you.

It’s critical that you notice any white smoke coming from your car’s tailpipes right away. Meanwhile, if you notice any smoke, be sure it isn’t just steam or the result of the outside temperature. So, tell us whether you’ve recently observed any white smoke coming from your exhaust.

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