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Black smoke is caused by over-fuelling or excess fuel in the combustion chamber. It can also be caused by insufficient air during the combustion of the air/fuel mixture. Check your air filter, and check that none of the fuel injectors are leaking. If these are fine, the car needs a tune-up, preferably on a dyno. This applies t o a petrol engine. If its a diesel, black smoke is normal during acceleration. If the smoke is excessive, check the fuel injectors and pump timing. also check the fuel filters and water traps for blockages. Also check the operation of the EGR valve and clean it, making sure it seals properly.
Blue smoke in both petrol and diesel engines is caused by the burning of engine oil during the combustion phase. The oil could be entering the combustion chamber via the valve stem seals or the oil rings. Also check that the oil level is correct as too much oil can cause blue smoke Also check that there are no oil leaks that are allowing oil to enter the exhaust system. If all that is in working order, I suggest you pull out the engine and get it overhauled.
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What causes blue smoke to come from your tailpipe?
the engine is burning oil. blue smoke oil white smoke antifreeze black smoke excess fuel
What causes smoke to come out of engine?
blue smoke is oil. white smoke is water. black smoke is unburnt fuel
What causes an 1985 impala to smoke?
depends on the color of smoke... white=water black=fuel blue=oil
What causes blue smoke from a diesel engine?
Blue smoke is burning oil.
What causes grey smoke from your exhaust when idling?
Black smoke means you're burning fuel, blue smoke, you're burning oil, white smoke, you're burning coolant.
What causes blue smoke from a 1992 Nissan Maxima?
usually blue smoke is oil
What make a 2000 ford ranger 3.0 to smoke black or blue?
Black smoke is usually from excess fuel. Blue smoke is usually from excess oil.
What causes blue smoke in the morning on a diesel?
Blue smoke is burning oil. If the smoke stops after a moment, It's your valve guide seals.
What causes blue tailpipe smoke?
You are burning oil.
What causes blue smoke from exhaust?
Burning oil
WHY 1990 izuzu trooper 2.8 turbo black smoke?
black smoke= rich fuel mixture blue smoke is oil
Why does your exhaust smoke a lot?
Depends on the color of the smoke. Blue smoke-oil. Black smoke-unburnt fuel.
