If only when cold--normal. Condensation being burned as vehicle warms up.
If all the time or when vehicle is at normal operating temperature--could be a leaking head gasket--allowing coolant into the combustion chamber
You may have a blown head gasket.
your car is burning oil.
Yes the white smoke is really steam from the cooling system a seal or gasket has failed.
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.
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
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!!
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.
Bad piston rings, oil level is too high, check the oil level and adjust
blown head gasket much?
If you see a lot of white smoke coming out of the muffler , that is the sign.
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.
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.