Your oil is probably leaking.
If the car is old, then it's likely to be scrap!
It is buring oil this is a wrong answer whe engine burn oil to the exhaust smoke is a heavy white smoke no black
it would cause overheating but the smoke is probally coming from some sort of water or antifreeze in combustion chamber
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.
Black smoke coming out of the exhaust of a car is usually due to oil being burned in the engine's cylinders. This can be caused by a worn piston ring or rings.
White smoke from the exhaust indicates you have a blown head gasket or cracked head. Stop driving the car until this is repaired or you will do serious damage to the engine.
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.
white smoke is coming from my exhaust why?
how can i get black exhaust smoke stuck on my dual exhaust
Due head gasket worn out
emissions and exhaust
the smoke that comes out of a exhaust pipe is supposed to be white
Black smoke is a sign of an overly rich fuel/air mixture, unlike blue smoke which is a sign of oil burning. Seek professional help.