While driving its not smoking but on idle and at stopping it starts black smoking
Your engine would smoke if you are running at too high RPM or have had
your RPM at a high level before. The engine is getting overheated. When
you say it only smokes until about one mile it sounds like a problem
with the engine. starter.
Source here ...
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SOURCE: Idle speed rough black smoke
More information needed, what model vehicle and what engine? Fuel injected or caburettor? That sort of info.
Terry
SOURCE: my truck blows white smoke
Hello!
There are two differnt reasons for black and white smoke coming from the tail pipe.
Black smoke means fuel runs rich (car getting to much gas). Check fuel pressure/air filter.
In some cases the white smoke means car is burning oil or transmittion fluid. Have tem checked/replaced.
If you can feel a smelly smoke it can be catalytic converter.
In a worsest scenario if car blowing white smoke it can be engine coolant is getting into an engine cylinder from a bad head gasket ,or a warped/cracked head. So you need to keep your eye on coolant level and check your engine for overheat. Also might be good to check your oil for traces of coolant (on a dipstick it would be a milky substance mixture of oil and coolant).
Good Luck
SOURCE: 5.8L just started will not idle, black smoke
possibly a fuel pressure regulator letting too much fuel in the engine
SOURCE: bmw 330d ...black smoke when idleing
Valve stem oil seal is worn. It doesn't smoke when injector disconnected because no compression as cylinder not firing with no fuel.
SOURCE: 1998, gmc,K2500, 5.7l, 250,000km, starts
A bad coolant temp sensor for the ECM will cause that problem ... they are cheap and easy to replace. One other possibility is a piece of carbon stuck in the EGR causing an internal vacuum leak ..
Good luck.
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