Diesel white smoke cold start

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?

Sometimes diesel engines emit a white smoke while starting. 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. 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. Use of our Flushing Oil Concentrate and FTC Decarbonizer address these respective problems. Water entering combustion spaces will also create white smoke. Ford Scorpio MkGhia 2. Why Does My Diesel Smoke So Badly Part 1:. White smoke on cold start.

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. When this occurs, it is typically due to deposits around the piston rings. Products designed to flush carbon away from the pistons often cures this problem. 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. 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.

Or maybe an injector or two issue not atomising quite right. Carbon build up etc preventing ignition. Unburnt diesel in the exhaust will show as white smoke so any of these things can cause it.

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. But mostly, it is the incorrect injector timing in the cylinders. 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. 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. You may have to register before you can post: click the register link above to proceed.

Some white smoke is normal on cold start -ups. 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.