Clean The Engine.
A clogged cylinder head can cause blue smoke. To clean it, remove the valve cover, and do the necessary cleaning. Also, clean the drain back holes carefully and recheck and reassemble them. After all of this, wait for 2 or 4 more days for the remaining oils to clean away.
What does it mean when a diesel engine is blowing 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 causes blue smoke on a diesel engine?
Blue smoke from diesel generator occurs because of oil being burnt in the cylinders . It isn’t normal for oil to get into the combustion chamber and so blue smoke is a sure sign that something is wrong with your engine. You should contact someone qualified to have a look at it.
What causes blue smoke from exhaust?
Blue/gray exhaust smoke means there’s likely an oil leak and your engine is burning oil. Time to have a qualified technician check things out. The leak could be caused by several issues like leaking valve seals, damaged piston rings, or worn cylinder walls.
What causes a diesel engine to smoke?
Over-fueling is the primary cause of black smoke from the exhaust of a heavy duty diesel engine. Over-fueling can be caused by diesel fuel injector wear that enlarges the nozzle hole or erodes the injector needle and allows excess fuel to flow into the combustion chamber.
Can diesel injectors cause blue smoke?
Constant blue smoke on a turbocharged diesel is unlikely to be caused by worn valve stem seals. Instead, the problem is more likely to be: ... Diesel fuel contaminating the oil . This may be caused by faulty injector pump and/or lift pump (which allows engine lubricating oil to mix with the diesel).
Can a bad 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 . ... But what we see more often than not are issues related to worn injectors.
Should a diesel smoke on startup?
It is acceptable for all but the most modern diesels to experience white smoke at startup . But this should disappear after the engine warms up.
How much does it cost to fix blue smoke from exhaust?
The Cost of Fixing your Blue Smoke Problem
If you aren’t that handy with a wrench, the part will probably cost $80 from a shop , then factor in $500 +/- for labor. It’s pretty expensive, but cheaper than a totaled car or a new engine!
What does blue smoke from exhaust look like?
Blue smoke can often look like grey smoke at first . But if you notice a distinctive bluish tint, it may signal that the engine is burning lots of oil. This could be due to worn engine components like piston rings, valve seals, or PCV (Positive Crankcase Ventilation) valves.
What does blue smoke from a lawn mower mean?
Blue or white smoke coming from your engine usually indicates burning oil , which can be caused by: Overfilling the crankcase with oil. Incorrect oil grades. Operating engine at greater than a 15 degree angle.
What can cause white smoke on diesel engine?
This smoke is caused by damp condensation inside the exhaust pipes, muffler, and catalytic converter. Once the engine begins to heat up, the condensation evaporates and mixes with the exhaust gas, creating a tell-tale thin white smoke. ... A common cause of white smoke in diesel engines is faulty injection timing .
How do I make my diesel smoke?
Install a smoke switch and start rolling coal like a pro . A smoke switch is the key to fooling your engine into thinking it needs more fuel, which lets out the excessive amount of diesel needed to belch clouds of black smoke.
Can faulty injector cause white smoke?
A Faulty Fuel Injector
Without getting too technical, the injectors that deliver the fuel to the combustion chamber can leak or become stuck in the open position . This means too much fuel in the engine that needs to burn off and be expelled. This is seen as gray or white smoke from the exhaust.
What are the signs of a bad fuel injector?
- The Engine Misfires. Dirty fuel injectors may cause your vehicle’s engine to misfire. ...
- Idling Gets Rough. ...
- Your Gas Mileage Tanks. ...
- The RPM Needle Starts to Dance. ...
- Your Car Won’t Start.
