What does Blue smoke mean?
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 causes light blue smoke?
Blue Smoke From Tailpipe A blue or grey colored smoke is typically caused by an engine that’s burning a significant amount of oil. If you’re lucky, this can be caused by a blocked PCV valve, which can start sucking oil into the engine. Fixing this problem is typically as easy as replacing that valve with a new one.
Why does white smoke come out of my diesel engine?
In diesel engines, white smoke may signify fuel not being burned well enough due to an injection problem, air delivery problem, or any of the problems noted above. Black smoke coming out of your car probably means that the engine is getting either too much fuel or too little oil.
What does it mean when you have blue smoke coming from your exhaust?
In diesel engines, a pale blue smoke may mean that you have air in the fuel system, which would also mean you have a problem with your fuel pump or the fuel pipes. Blue smoke is generally bad news – the repairs are quite tricky and not a basic DIY job. Instead, a visit to a garage will likely be necessary.
What’s the difference between Blue Smoke and white smoke?
Blue smoke is generally bad news – the repairs are quite tricky and not a basic DIY job. Instead, a visit to a garage will likely be necessary. White smoke from the exhaust system is usually not an issue. In fact, what at first appears to be white smoke may not actually be white smoke in the first place.
Why do I have different colors of smoke in my car?
Different colors of smoke can indicate different problems with your engine. This is generally caused by an issue in the carburetor and fuel systems. The usual cause is a fuel-to-air mixture that is too rich, meaning it has more gasoline in the mix than it should.