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Black smoke from diesel engines on starting and/or running tends to mean there is fuel leaking into the engine, or the fuel mix is incorrect and not atomised correctly. The main causes are normally a nakered air filter that isn't letting enough clean air into the engine to mix with the diesel, a blocked fuel filter, which is either not letting enough fuel in, or in some cases, a faulty fuel filter which is letting too much diesel into the engine, and causing black smoke due to excess burning. The last cause could be the engine's fuel injector which should normally create a fine mist spray of diesel to be burnt. if its faulty it could either not be spraying enough fuel into the chamber, or too much.
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Why does black smoke come out the exhaust on starting my 1986 Ford Ranger?
If black smoke is coming out of the exhaust of a 1986 Ford Ranger, it is likely burning oil. It's possible that a seal is leaking in the engine.
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
Will a bad valve cover gasket cause smoke from exhaust?
No, it will not cause smoke from the exhaust pipe. However the leaking oil can drip on the exhaust manifold where it will be burnt and smoke.
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.
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 might cause back smoke from exshaust and bad smell 94 Ford Explorer?
what might cause black smoke from exhaust and a bad smell from a 94 ford explorer
What could cause a diesel car to give black smoke and not accelerate?
blown turbo - worn turbo bearing causing oil to suck through and into exhaust manifold - results in no power and neat oil burning in the exhaust - major black smoke
Black exhaust smoke?
Service engine
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.
What cause white smoke from exhaust it turns black acceleration on a 1994 international 7.3 diesel?
White smoke is water vapor (or coolant) in the exhaust, the black smoke is the (normal) over-rich condition at WOT (full acceleration) White smoke can also be unburned fuel, generally seen on earlier, non-electronic engines that are mistimed.
What does black smoke from the exhaust mean?
Unburnt fuel.
