White smoke diesel start up

What could make a diesel engine produce white smoke? Can bad diesel cause white smoke? Why does diesel engine produce black smoke on start-up? What makes a diesel blow blue or 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. White Smoke at Start-up and Short Term Driving Condensation that accumulates inside the exhaust pipes, converter and mufflers can produce a puff of white smoke upon diesel engine start-up. 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. On the other han thicker smoke is a pretty big issue. Since this is a boat and marine diesel forum, an white smoke seems to come with the territory, I’ll first start by giving you about twenty years of personal experience with white smoke. Diesel Engines Blowing White Smoke from Exhaust.

WHITE SMOKE occurs when raw diesel comes through the exhaust completely intact and unburned. Some causes of this include. I wondered about an oil leak into the engine, but the oil tank remains full.

The other possible is that I have been sold some crappy fuel or that there is water getting into the engine. In this case, bad seals or piston rings cause oil to leak into combustion chamber which then mixes with fuel and burns. The result is a white or light bluish smoke that comes out from exhaust manifold. Don’t restrict the exhaust, just attempt to coat your fingers with the smoke. When the engine is cold or has cooled back down I get a lot of white smoke at startup.

This typically occurs due to the engine being too cool to burn. Water entering combustion spaces will also create white smoke. Another possible issue is a worn-out injector, an injector with a cracked tip,. If your car has a diesel engine, then the white smoke might be indicating that there is a problem with the fuel pump injection. When the fuel pump injection timing is off, it is difficult to determine the root cause.

Normally, it would happen at startup in cold weather with lower compression engines and retarded timing. 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. White smoke : Caused by unburned fuel passing through the engine. The commonest cause of white smoke is likely injector pump timing.

In order to function properly, a diesel engine needs precise timing of the injector pump and high pressure. So, any decrease in the pressure or delay in the fuel delivery to the combustion chamber will result in incomplete combustion, leading to white smoke. As the engine warms up after a few minutes, this white smoke will not be reduced because condensation is dissipated. If there's a bunch of white smoke coming out from the valve cover, then you might be a cylinder down.

This is nothing but steam caused due to condensation. 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. It smokes a lot more than my ALH does on start up. I ran diesel purge through it before changing the IP and injectors. On the common rail Cummins, white smoke is more characteristic of an injector problem.

If the exhaust smells almost like bug spray, it is. This unburnt diesel contains minor toxins that may sting your eyes.