White smoke on cold start diesel

Can bad diesel cause white smoke? What can cause white smoke from a diesel? Why does my diesel engine have white smoke? Can a bad fuel injector cause white smoke? The white smoke is due to unburnt fuel caused by improper heating.

Diesel engines need high compression and heat for fuel combustion. It can be especially difficult to start a diesel engine during cold weather. Diesels with an engine temperature below about F. The content of white smoke is finely atomized raw fuel and water vapor. If I have been driving it and the engine is warm it does not occur. It will occasionally also give it a rough idle while warming up.

WHITE SMOKE occurs when raw diesel comes through the exhaust completely intact and unburned. Some causes of this include. Ford Scorpio MkGhia 2. Why Does My Diesel Smoke So Badly Part 1:. In very cold temperatures , the heated exhaust can freeze into minute fuel droplets when exiting the exhaust and produce a more prolonged emission of white smoke for a very short period of driving time.

As already pointed out white exhaust could be condensation but it could indicate something nasty like a head gasket or similar leaking coolant into the combustion system (hopefully least likely ). This typically occurs due to the engine being too cool to burn the fuel , often resulting from low compression in one cylinder, problems with the fuel injection timing or a defective fuel injector. The truck started pouring out white smoke cold starts in the winter. Excessive smoke , I am the original owner and it is not just the typical diesel haze.

Smoke smells of raw diesel and completely goes away after a few minutes of driving. But it is always a good idea to keep an eye on your oil and coolant levels on any car, smoke or no smoke. Even in a hot and humid climate , there will be some condensation in the exhaust system overnight.

In very cold temperatures, the heated exhaust can freeze into minute fuel droplets when exiting the exhaust and produce a more prolonged emission of white. Re: Puff of white smoke upon cold start means. White smoke will cover the road. I would worry about this.

The reason I’m posting today is that even though the engine in this rabbit has under 10k miles on it, when I start it cold (around degrees not arctic temps) it starts spewing white smoke about seconds after it gets turning. When it’s cold outside and you notice white smoke at startup, then you probably have nothing to worry about. When the warm or hot exhaust gases meet cold outside air, condensation and steam is a result. After a short amount of driving, the white smoke should lessen.

Continuous white smoke while driving is one of them. If you are having a diesel , white smoke may be unburned fuel or coolant going through the engine. Excessive white smoke could be an indication of inoperative glow plugs, loose injectors, low compression from worn rings or bent connecting rods, or coolant leak into the cylinders.