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. The oil thins out when it is cold and some could escape into the cylinder and be burnt.

1. Can a bad diesel injector cause blue smoke?
2. Can a bad turbo cause blue smoke?
3. Is Blue smoke bad?
4. Can thin oil cause blue smoke?
5. Can fuel additives cause blue smoke?
6. Can a blown head gasket cause blue smoke?
7. How much does it cost to fix blue smoke from exhaust?
8. How do you diagnose blue smoke from exhaust?
9. What does Blue smoke indicate?
10. What color smoke is fuel?
11. What color smoke is a blown head gasket?
12. Can bad valve seals cause blue smoke?
13. Can a bad EGR valve cause blue smoke?
14. Can a bad valve cover gasket cause blue smoke?

Can a bad diesel injector cause blue smoke?

No, blue smoke is caused by oil, your engine is burning oil, fuel injectors work or they don't work, there is no intermittent on injection modules.

Can a bad turbo cause blue smoke?

If your car has a turbocharger, a blown-out turbo may be causing the blue cloud behind your car. A blown-out turbo can be identified by a broken or damaged oil seal. In this case, oil gets sucked into your engine's combustion chamber. There, oil mixes with fuel and leads to blue smoke.

Is Blue smoke bad?

While smoke from the exhaust isn't always bad, blue smoke most definitely is. How bad exactly? Blue smoke indicates your car engine is burning oil. And at the very least, there's likely a problem with the PCV (Positive Crankcase Ventilation) valve.

Can thin oil cause blue smoke?

It only requires a very small amount of oil leaking into the cylinders to cause excessive blue exhaust smoke. Blue exhaust smoke only at start-up can indicate worn piston seals or damaged or worn valve guides which may also cause a rattling noise.

Can fuel additives cause blue smoke?

Any of these could be letting oil through when they should be lubricating the moving part causing the coloured smoke. There are some other potential causes too. Fuel additives like Seafoam can also cause coloured smoke because the liquid is eating away at the built up carbon in your engine leading to blue tinted smoke.

Can a blown head gasket cause blue smoke?

The most common sign of a blown head gasket is exhaust smoke. White smoke indicates that your car is burning coolant that is leaking into the cylinders. A similar problem is indicated by blue exhaust smoke, though this is a sign of oil leaking from the gasket.

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!

How do you diagnose blue smoke from exhaust?

If you are noticing blue smoke from the exhaust, it means your engine is burning oil due to an oil leak. This symptom could be the result of a leaking valve seal or a problem with a piston ring. What is happening is that the engine seals are not effectively sealing the oil from getting into the cylinders.

What does Blue smoke indicate?

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 color smoke is fuel?

White smoke can often mean material is off-gassing moisture and water vapor, meaning the fire is just starting to consume material. White smoke can also indicate light and flashy fuels such as grass or twigs. Thick, black smoke indicates heavy fuels that are not being fully consumed.

What color smoke is a blown head gasket?

White Exhaust Smoke

White smoke billowing out of your exhaust means that coolant is likely leaking into the cylinders. This usually happens when there has been a breach in the head gasket, which makes the coolant create this white steam. Have it taken care of before the breach gets bigger and bigger.

Can bad valve seals cause blue smoke?

Bad Valve Stem Seals

Worn valve guides and valves, will also cause this issue. There are valve seals, to prevent this oil from flowing into the engine. If these seals are worn or broken, the oil will come down into the engine; then is burnt along with the air and fuel, causing blue smoke.

Can a bad EGR valve cause blue smoke?

The exhaust gas recirculation (EGR) valve might be sticking occasionally and ti can give you blue smoke, when it sticks open it allows in spent exhaust gases which interfere with the combustion process but usually gives other symptoms like rough idle and possible EML warnings.

Can a bad valve cover gasket cause blue smoke?

Yes it can. If the valve cover is leaking bad enough the oil is going to drip down the engine and hit the hot exhaust manifold. When that happens the oil is going to burn which will make smoke. Yes it can.