Common questions

What does Blue smoke indicate and what could be the cause for a diesel vehicle emitting blue smoke?

What does Blue smoke indicate and what could be the cause for a diesel vehicle emitting blue smoke?

Blue smoke from diesel engines normally means engine wear or damage. Black and grey smoke results from incomplete combustion and may be caused by many factors that can usually be rectified during routine maintenance.

Why does my diesel engine have blue smoke?

Blue engine smoke is the rarest type of smoke emanating from a diesel engine. The presence of blue smoke is an indication of burning oil. Blue smoke should not be ignored but is common when starting an engine in a cold weather. The oil thins out when it is cold and some could escape into the cylinder and be burnt.

What kind of smoke comes from a diesel engine?

Blue Smoke: Blue engine smoke is the rarest type of smoke emanating from a diesel engine. The presence of blue smoke is an indication of burning oil. Blue smoke should not be ignored but is common when starting an engine in a cold weather.

When to shut down a diesel engine with smoke?

No matter the color of the smoke it is not something you should ignore. A properly working and maintained diesel engine should produce no visible smoke. Make sure to shut down the engine immediately if you encounter excessive smoke as further heat or load could severely damage the engine further.

Why is there white smoke coming out of my exhaust?

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. If white smoke occurs during a startup in freezing temperatures, then goes away,…

Blue engine smoke is the rarest type of smoke emanating from a diesel engine. The presence of blue smoke is an indication of burning oil. Blue smoke should not be ignored but is common when starting an engine in a cold weather. The oil thins out when it is cold and some could escape into the cylinder and be burnt.

Why is there white smoke coming from my Cummins Engine?

Water or oil in the fuel: Clean fuel will burn properly, but if there is anything added in, it can prevent the fuel from burning as it should. If water or oil is in the mix, it may be the cause of white smoke coming from the engine. Water can cause major disruption, so it needs to be taken care of promptly.

What can go wrong with a Cummins diesel engine?

What Can Go Wrong With Cummins Diesel Engines? 1 1. Engine Not Starting or Hard to Start. In some cases, diesel engines will flat-out refuse to start. When an engine experiences difficulties starting 2 2. Running Rough at a Lower RPM. 3 3. Lack of Power. 4 4. Black Smoke. 5 5. White Smoke.

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Ruth Doyle