Emissions and Exhaust Systems
Head Gaskets and Valve Covers
Mufflers and Tailpipes

Why does white smoke come out of your muffler?

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2014-08-25 17:04:42
2014-08-25 17:04:42
AnswerOne potential cause is too much gas. It may be running "rich". Your car may also be burning a little oil.

White smoke is usually water or antifreeze. If you are loosing coolant from the radiator, it's probably a blown head gasket. If not, it is just condensation in the exhaust pipe that is evaporating as the pipes heat up. If the car is running too rich, the unburned gas will cause black smoke and burning oil smoke will be blue.

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Yes the white smoke is really steam from the cooling system a seal or gasket has failed.


You may have a blown head gasket.



if its cold outside your muffler starts to smoke or it just started up or something im not sure


white smoke is usually due to large amounts of oil in the muffler. if the mower was turned on its side for a period of time the oil will run into the muffler and when you start it it burns the oil out. after the large cloud starts to dissipate the smoke should start to change to a normal blue color and then disappear as it clears out


Just having a hole in the muffler won't cause smoke to form. Any smoke coming from an engine is caused by either environment changes (white smoke while engine is warming up), or an engine burning oil (blue smoke). Sometimes even a bad catalytic converter can cause smoke. The hole in the muffler simply gives the smoke a way out. Trying looking for external oil leaks or checking he oil level occasionally to see if it is burning oil. You may see water vapor is there is a hole in the muffler but it wouldn't last long once the muffler warms up and the moisture is burned off. She shouldn't see actual smoke unless there is a problem with the engine.


NO!! White smoke indicates the burning of oil. The law says, "ANY smoke coming from the engine during any part of the test is grounds for failure." I've been an Emissions guy in Denver for 23 years. White smoke is oil. Black is gas (too rich). Black smoke can get pricey. White smoke is always pricey!!


Your headgasket is bad, coolant is getting into the combustion chamber, hence the thick white smoke and fluid. had that happen to my dads thunderbird a few years ago


You have described the classic symptoms of a blown head gasket or cracked cylinder head or both. In either case, there is a loss compression and "get up and go". Also, coolant leaks into the combustion chamber (also affects "get up and go" and the steam comes out of the muffler/tail pipe as "white" smoke.


White smoke means head gasket, cracked head or equivelant.


blue smoke is oil. white smoke is water. black smoke is unburnt fuel


Bad piston rings, oil level is too high, check the oil level and adjust


The smoke from your muffler has a smell because what is coming out of the muffler is the products of the incomplete combustion of your fuel. Some of those products are gases and vapors that have color and some are dark but small particles - that is what you call smoke. But some of what comes out are various chemicals that your nose detects as odors.




If you see a lot of white smoke coming out of the muffler , that is the sign.



There are three types of smoke that will exhust from your gasoline engine: White smoke, actually is steam from condensation of water within the muffler and exhust system. Number two is Black smoke, this is from unburned fuel. The engine is running far richer that it needs to be. Number three is blue smoke. This is usually associated with oil comsumption.


Cars pollute the environment because smoke comes out of their muffler and smoke is bad


Usually means trouble. White smoke is caused by coolant / antifreeze getting into the combustion chamber. Take it to your local professional.Most probably, your head gasket had blown, or the block is cracked. Which means that collant is getting into the cylinders, causing the exhaust to be white.


the engine is burning oil. blue smoke oil white smoke antifreeze black smoke excess fuel


White smoke from the exhaust is a symptom of coolant entering the combustion chamber. Most likely cause is a blown head gasket, cracked heard, or both. STOP driving this car until you can have it repaired or you will destroy the engine.


Coolant is getting into the combustion chamber. Sounds like a head gasket problem.




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