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That is called condensation. When you start the engine the exhaust system/pipes are cold. When the heat from the engine exhaust passes through the exhaust it makes it sweat. That is normal.
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What causes black soot from exhaust?
burning oil
What is black exhaust soot?
Exhaust soot is Carbon based molecules that have not reacted to completion in the combustion chamber.We input Hydrocarbon, Air, and Exhaust gas (EGR), and hope that we burn all the hydrocarbon into carbon dioxide and water. If there is not enough oxygen in the combustionchamber for the amount of fuel (through over allowance of EGR or otherwise) then we get soot paticles forming.
Why is there soot exhaust?
burning oil
Leaking oil from muffler?
I would suspect that you're actually leaking "soot". If the engine is running reasonably well and you're getting black liquid when the engine is cold, it's soot. Engines have to run a little "rich' (extra fuel) when they're cold and that sometimes produces a little carbon in the exhaust. Another thing that happens when an engine is cold, the EXHAUST and muffler are also cold. that causes some of the exhaust gasses to condense on the side of the exhaust system. Since automotive fuels are nothing more than complex hydrocarbons, a good portion of the exhaust gas becomes an oxide of hydrogen that we lovingly call "water". Once the water vapor cools on the exhaust system it condenses and picks up the soot and it all drips out, sometimes out of the back of the exhaust pipe, other times out of the "weep hole" of the muffler. If you feel that you're getting too much soot it might be a good idea to give the vehicle a good "tune-up", other than that, there isn't much to do about it. On the other hand, if it truly IS oil, that's leaking out, you have serious oil burning and it's amazing that the engine even runs.
What is diesel particulate pollution?
A running Diesel engine releases soot in its exhaust. Another word for soot is particulate pollution - as soot consists of small particles.
Is it normal for black soot to be around exhaust manifold for a 2004 trailblazer LS?
No. This means that the manifold has an exhaust leak.
Why is the furnace blowing black soot on the ceilings?
If you have an issue with furnace exhaust in your home and soot is exhaust. Please stop wasting your time here. That is dangerous. Call somebody! Nobody here can tell you what it is with out looking at it.
What causes extreme black soot and smoke to come from the exhaust of a 1993 Grand Am when it's running fine and the fluid levels are normal?
In some cases blocked catalic converter
What substance are found exhaust gas?
The exhaust gas is made up of water, carbon dioxide, carbon monoxide, nitrogen, hydrocarbons, nitrogen oxides, ozone and soot. There are rules as to how much of these a car can output too.
How can you stop black soot from coming out of your exhaust?
engine tune just a major service then maybe a new exhaust system
What are tiny pieces of solid found in exhaust fume called?
The name is soot.
What are the function of soot doors?
soot doors is provide to clean the outside of the water tubes and to remove the soot.
