Why does white smoke come out at low revs?
White smoke is usually unburnt fuel. One common reason for this at low revs (but no white smoke at high revs) is dribbling injectors. This is called low speed hosing, as they don’t cut off cleanly and cause smoke from the unburnt fuel.
What does white smoke from a diesel engine mean?
White Smoke: White smoke coming from the exhaust usually points to one point of failure: the injectors. Usually, white smoke indicates that the diesel fuel is not burning correctly. Unburned diesel fuel will make its way through the exhaust completely unused. Be careful of white smoke as it will irritate your eyes and skin.
Why do I have white smoke coming out of my exhaust?
White smoke occurs as a result of combustion temperature being so low that only partial combustion occurs and the partially burned fuel that exits the exhaust is in the form of a white vapory smoke. Technically, the white color is caused by the light-scattering characteristics of the re-condensed droplets of fuel…
Which is worse white smoke or yellow smoke?
It doesn’t matter if the engine’s yellow, green,silver-gray, or white. They all can suffer the same, and YES, some individual engines are worse than others.
White smoke is usually unburnt fuel. One common reason for this at low revs (but no white smoke at high revs) is dribbling injectors. This is called low speed hosing, as they don’t cut off cleanly and cause smoke from the unburnt fuel.
What does white smoke do to an engine?
You’ll still get improved start-up and oil circulation, less moisture build up in the engine room spaces, and a much nicer environment for the engine to live in (warm and cozy). So, as you can see, white smoke is an issue with many of the engines today that are in perfect mechanical condition.
What does black smoke mean on a PowerStroke?
Smoke is the easiest way to tell what is wrong with a PowerStroke fuel injector. White smoke is normal on startup, but excessive white smoke could mean a loose injector or low compression. Black smoke is normal on hard accelerations, but excessive black smoke means the fuel-to-air ratio is too high.
It doesn’t matter if the engine’s yellow, green,silver-gray, or white. They all can suffer the same, and YES, some individual engines are worse than others.