How do I stop my diesel from going blue smoke?
There are a few low-cost solutions you can try to find the cause of the blue smoke and stop it from coming back. If you suspect you might be burning oil, Stiction Eliminator is an excellent place to start. It’s an efficient oil treatment for both gasoline and diesel engines.
What causes a diesel to smoke blue?
Blue exhaust smoke in a diesel vehicle could still mean oil is being burned, but it could also mean the engine oil is being atomized. This could be caused by: High engine oil levels. Worn out piston rings.
Can a faulty injector cause blue smoke?
This can be caused by worn/leaking injectors or restrictions in the air intake system. Blue smoke is normally the result of engine oil entering & burning inside the combustion chamber. This is most often caused by low compression, or worn piston rings.
What causes blue smoke on cold start?
Blue smoke coming from the tailpipe is usually an indication that the engine is burning oil. If the engine is burning oil, the piston rings or valve guide seals may be causing this to happen. The piston rings and valve guide seals are intended to prevent oil from reaching the combustion chamber.
Can diesel injectors cause 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.
Can EGR cause blue smoke?
Yes, a bad exhaust gas recirculation (EGR) valve can cause blue smoke to be produced from a car’s exhaust. Sometimes the EGR system may be clogged up, and at other times, it may stick open, thereby allowing spent gases from the exhaust to enter the combustion system.
Can too much oil cause blue smoke?
Yes, there’s a possibility of blue smoke being caused by the overfilled engine oil. This can occur when the crankcase is over-pressurized due to the sump being overfilled. Consequently, the additional oil will be forced up the cylinder wall and into the combustion chamber.
Can a blocked DPF cause blue smoke?
Blue smoke is oil. Even a small amount getting into the DPF will clog it up, forcing more regular regens and working harder… taking life out of it as well. Confused that no oil level issues, but has the oil usage increased at all?
Is blue smoke normal on diesel cold start?
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. Cold temperatures can cause older more worn rings to unseat just a bit due to deposits found around the rings or cylinders.
Is it normal for a diesel to smoke on startup?
As a general rule, some smoke upon initial startup for a few moments is common, Urso notes. “Black smoke is traditionally associated with a rich combustion process or an overload (abnormal mechanical resistance),” he continues. “White smoke (contingent on its odor) signifies insufficient temperature.
Can overfilling oil cause blue smoke?
Can Overfilling Oil Cause Blue Smoke? Yes, there’s a possibility of blue smoke being caused by the overfilled engine oil. This can occur when the crankcase is over-pressurized due to the sump being overfilled. Consequently, the additional oil will be forced up the cylinder wall and into the combustion chamber.
Is white smoke normal for a diesel on a cold start?
According to Zack Ellison at Cummins, “White smoke is an indication of unburned diesel fuel. Normally, it would happen at startup in cold weather with lower compression engines and retarded timing. You get an incomplete combustion during startup and it causes raw diesel fuel to come out of the stack.”
Is it normal for a diesel to smoke when cold?
A plume of white smoke is generally most noticeable at diesel startup, particularly when it’s cold. This is due to the fact that colder air, which is more dense than warm air, lowers temperatures in engine cylinders at the end of the compression stroke.
Is it normal for a diesel engine to smoke blue?
No amount of blue smoke is normal. A new engine may burn oil without any evidence of blue smoke because of the good compression it can burn oil cleanly. However, it is not acceptable for any engine to burn large amounts of lubricating oil. A great thing to do as a preventive for your diesel engine is an oil and fuel additive.
Why is my diesel engine smoke black?
There is a delicate mixture of air and fuel that needs to be achieved in order to have a clean burn from your diesel engine. When you are having black smoke, the balance has not happened. Air restriction is the most common cause of black smoke. So, where is the restriction?
Why is my car blowing Blue Smoke?
Keep an eye out for clogs or debris in the tube. If blue smoke is only happening on a cold start, it is likely that it is a piston/cylinder problem. With so many different causes of blue smoke, it can be a daunting task to begin to diagnose the issue. I decided to give you a little nudge in the right direction. Take a look at the list to follow.
Why does my car smoke when running at idle?
As you start running the engine at idle (around 650 or 750 rpm), you will achieve a more effective compression ratio, and the smoke clears. White smoke has a lot to do with the temperature in the combustion chamber.