answersLogoWhite

0


Best Answer

Black smoke is caused by the engine ~not~ burning all of its fuel. The most common cause of incomplete fuel burn is a clogged air filter, exhaust system (muffler) or injectors covered with carbon build-up. Another cause is too much fuel entering the engine to be burned due to either bad calibration or too heavy a load.

User Avatar

Wiki User

7y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: What cause black smoke in the exhaust?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Related questions

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.


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.