The fix for this is to add a detergent additive to your diesel fuel on a regular basis . A multifunctional treatment like Dee-Zol will clean out the deposits, reduce the amount of fuel burned incompletely burned, and can even extend the life of your DPF (because less soot are being produced at any one time).
How do I stop my diesel engine from smoking?
- Always ask a specialist. The Motor Company’s authorized service can help you with any problems with your diesel car.
- Clean the air system. ...
- Check your engine rings. ...
- Check the fuel supply. ...
- Use fuel additives.
What causes diesel engine to smoke?
From worn cylinders and piston rings to faulty injectors and valves, there are many reasons a diesel engine may emit excessive smoke. ... This type of smoke can be caused by a low quality fuel, a dirty air filter , an overabundance of fuel amongst, or other, similar possibilities.
How do I stop my diesel from blowing black smoke?
Black exhaust smoke is often caused by fouled injectors. Diesel Injector Cleaner (DIC), Diesel Fuel System Cleaner (DFSC) and Pro-Strength Diesel Fuel System Extreme Clean can remove injector deposits and help reduce black exhaust smoke.
How do you stop white smoke from a diesel engine?
If the white smoke comes with significant performance loss, consider having the engine undergo a pressure test to determine if it’s caused by a leak at the valve stem or piston. In such cases, the top half of the engine will be dismantled, and the damaged valve and/or piston rings removed and replaced.
What color should diesel smoke be?
Black smoke is the most common smoke color coming from a diesel engine and most likely indicates something is wrong during the combustion of the diesel fuel. When diagnosing the problem the first place to look at is the mixture of air and fuel flow into the cylinders.
What does GREY smoke from a diesel mean?
Grey smoke from the exhaust: This could be excess oil, a PCV valve failure or a transmission fluid leak on automatic cars. ... In diesel cars it’s more likely to be soot build-up or the diesel particulate filter cleaning itself.
Can a turbo cause black smoke?
An oil leak in the combustion chamber, resulting from a cracked turbo housing, may lead to blue smoke shooting out of your exhaust pipe. Black smoke, on the other hand, may be caused by a burnt engine, clogged air filter, obstructed air intake duct to the turbo compressor, or defect in your engine’s fuel injectors .
What does it mean when a diesel engine is blowing white smoke?
If you truck is blowing white smoke, then there’s either too much fuel getting injected into the combustion chamber or there’s not enough heat to burn the fuel . Other causes include low compression and residual coolant in the combustion chamber, but these are less prevalent.
How do I fix white smoke from exhaust?
This generally happens because of a cracked or leaking head gasket , which allows coolant to seep into your cylinders. In extreme cases, you will need to replace your head gasket. At the first sign of white smoke you can try head gasket repair treatment to seal the leak before you do serious damage to your engine.
Can faulty injector cause white smoke?
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 happens when a diesel turbo fails?
Usually when a turbo fails the pieces go into the intercooler along with a good amount of engine lube oil . If you do not shut it down quickly, smaller pieces get into the engine, again with engine oil. ... The turbo may not even cause damage, it may just stop for other reasons. No boost = no acceleration!
Is black smoke bad for a diesel?
Black smoke is partially-burned fuel . An engine that’s running properly will burn all of the diesel fuel completely, making CO2 and water. So black smoke means something is causing the fuel to not burn completely. ... Not enough air means incomplete fuel combustion.
Is it normal for a diesel to smoke on startup?
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.” Typically, white smoke clears up very quickly. ... A low cetane rating can also cause white smoke.
What does blue smoke in diesel engine indicate?
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.
What does it mean when GREY smoke comes out of your 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.
