As a car owner you expect something to come from the tailpipe. The smoke coming from the exhaust pipe of your car may be due to an accumulation of condensation and may not have any negative implications.

It could also be a sign that there has been some kind of fault in your vehicle and there could be serious consequences if you don't act quickly.

Smoke is definitely a cause of concern and may hint of a number of problems that are happening underneath the hood of the car. You know how much you should be concerned the more you know about the emissions of smoke.

Black Smoke

Black exhaust smoke is an indication of a rich fuel condition. These are possible causes:

Fuel Injectors: A leaking or dripping fuel injector will cause a rich fuel condition.

Fuel Pressure Regulator: A stuck closed fuel pressure regulator will cause a rich fuel condition.

Fuel Return: A restricted fuel return line will cause a rich fuel condition.

White/Gray Smoke

White exhaust smoke is an indication that coolant is burning in the combustion chamber. These
are possible causes:

Cylinder Head: A crack in the cylinder head (around the coolant jacket) will cause coolant to
enter the combustion chamber.

Engine Block: A crack in the deck of an engine block near the coolant jacket will cause coolant to
enter the combustion chamber.

Head Gasket: A damaged or blown head gasket will cause coolant to enter the combustion
chamber resulting in white/gray smoke coming from the tailpipe.

Gray Smoke

Gray exhaust smoke is an indication of oil burning in the combustion chamber. These are possible symptoms and causes:

Valve Seals: Leaking valve seals will cause gray exhaust smoke.

Valve Guides: Excessive clearance between the valve stem and the valve guide allows oil to leak
past the gap into the cylinder.

Piston Rings: Worn or damaged piston rings will cause blow-by, resulting in gray smoke.

Worn Cylinder Walls: Worn cylinder walls cause blow-by, resulting in gray smoke.
PCV System: A stuck closed PCV valve causes excessive crankcase pressure, resulting in gray
smoke.

Do You Know there is also Blue Smoke?


If your car is blowing blue smoke, it’s a clear sign that the engine is burning oil. What happens is that the valve guide seals or piston rings are worn out, and oil is leaking past from where it should be lubricating the moving parts, to the combustion chamber where it’s being burned up
with the fuel.

If you’re seeing this kind of smoke, check your oil regularly and watch for consumption issues.

While an issue that normally should require immediate attention and expensive repairs, including some internal replacement parts, if your vehicle is old and the leak is minimal, it can be carefully managed by topping up the oil on a regular basis.

Along with environmental damage, burning oil can cause rough starts, as the process can ruin the car’s spark plugs.

There is another reason for blue smoke, and that’s if the car is turbocharged; the smoke being a sign that the blower is in need of rebuilding or replacement.

Burning oil and gasoline also suggests that there are very hot leaks somewhere in the area of the engine. It is not out of the question to say that you could be badly burned by drops of hot oil or gasoline. This is honestly a situation where professionals ought to be called in. You are making a serious mistake by waiting


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Bookmarked till I'll have my own wheels

very informative.
thanks op.

seems its only in the morning that the mods brain used to work that we see useful topic on fp and not curvy busty hip on fp

No doubt! Fumes from the exhaust say alot about your engine. O recall when my dad would tell me to Rev the engine of his car just to see the color of the fume from it's exhaust.

True

nice info, but I think mine is still OK for now

Noted

Noted before the Mechanic becomes a your family friend

What about a kind of gas( steam like from boiling water) that comes out first thing in the morning when you start your car engine or in a very cold weather condition there's a steam gas kind of that comes out for some min and then stops, what do we call that ?

So if the car is in good condition what should be the color of the smoke?

What about okada ?

So which colour of smoke should I ignore then

op White smoke do come out from my car in the morning and the it comes with water from the exhaust ....is that not vapour ?

oluwashegunfunm:
What about a kind of gas( steam like from boiling water) that comes out first thing in the morning when you start your car engine or in a very cold weather condition there's a steam gas kind of that comes out for some min and then stops, what do we call that ?

Its called steaming, and shows the Engine is in top notch condition

nedu2000:
So if the car is in good condition what should be the color of the smoke?

Copy and paste op won't answer that.

Good, but op, you failed to mention the normal steam seen more in the morning and during cold weather mostly from heavy engines like V6, V8, V12. You also failed to mention your source.

AutofactorNG, we are asking which color of smoke us okay then? If it's copy and paste thing, those asking my kind of question are on a long thing.

H

good

Educating...
Mine steams especial at mornings/ cold weathers

so what is the ideal color of smoke

kk

Stealthideals24:


Copy and paste op won't answer that.

lol,is it a crime to c/p?

oluwashegunfunm:
What about a kind of gas( steam like from boiling water) that comes out first thing in the morning when you start your car engine or in a very cold weather condition there's a steam gas kind of that comes out for some min and then stops, what do we call that ?

That's condensation burning up

Afterall: exhaust pipe is suppose to emit smoke.

what conditions will cause your tailpipe to drip water?

Today is my birthday, I'm so happy and grateful to God Almighty. tho no job and all, Nairalanders pls give me 500 likes as prayers and good wishes!

Water coming out of an exhaust after starting the car is perfectly normal and its caused by the combustion in the engine. If water still drips from the exhaust after the engine has been running for a few minutes, it may be the sign of a serious problem. you should have your engine checked.

one common cause if water still leaks out of your exhaust when the car is properly warmed up or after a long drive is bad head gasket.

TheAlchemist:
what conditions will cause your tailpipe to drip water?

Uchihaitaci:


Its called steaming, and shows the Engine is in top notch condition

yipee, my car na Aja 7, Lagos to Abuja na 1hr

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nice