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It means that the engine is running too "rich"; that is, there is too much fuel in the air/fuel mixture.
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∙ 11y ago
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What does black smoke from the exhaust mean?
Unburnt fuel.
Hot get rid of black smoke from tailpipe?
how can i get black exhaust smoke stuck on my dual exhaust
What is black smoke from exhaust?
emissions and exhaust
Why is black smoke coming out the exhaust?
It is buring oil this is a wrong answer whe engine burn oil to the exhaust smoke is a heavy white smoke no black
What is the cause of white smoke from the exhaust of a marine diesel engine?
White smoke means water, blue/black smoke means oil, black smoke can also mean the fuel mixture is too rich.
Black exhaust smoke?
Service engine
What does it mean when black smoke comes from lawn mower?
If its black smoke you are burning oil possibly due to oil getting in your exhaust by tilting the lawnmower on its side or your rings are allowing oil by.
Why does your exhaust blow black smoke?
Black smoke from the exhaust it a symptom of an overly rich fuel/air mixture. Have this repaired or it will destroy your O2 sensor and catalytic converter.
What would cause backfire and exhaust smoke?
It could be timing is off. Need more info. Is it Fuel injected or Carburated? Exhaust smoke? Is it black? Black indicates alot of carbon built up. May mean the fuel is burning way to rich.
Why does your exhaust smoke a lot?
Depends on the color of the smoke. Blue smoke-oil. Black smoke-unburnt fuel.
Why does your truck have black smoke coming from the exhaust?
Could be a diesel? If not then replace your oxygen sensor on your exhaust. A bad oxygen sensor causes the exhaust smoke to be dark in color.
What color exhaust smoke is caused by carbon?
black,grey
