What causes blue smoke from tailpipe?
Blue or gray exhaust smoke 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.
Why does my Saab 9-3 have blue smoke coming from the exhaust?
Here are the most common causes of blue smoke coming from your 9-3’s exhaust: Your Saab 9-3’s valves let both air and fuel into the combustion chamber. They are lubricated like the rest of the motor.
What does Blue Smoke mean in a 9-3?
Blue smoke indicates that your 9-3’s engine is burning oil. The question is how is oil getting into the combustion chamber? Here are the most common causes of blue smoke coming from your 9-3’s exhaust:
Why does my Audi A4 have blue smoke?
When a turbocharger goes bad, it will allow oil to get sucked into the combustion chamber. Usually it’ll be a big plume of blue smoke as this happens. Glow plugs warm up the engine enough for the combustion of diesel fuel when a diesel engine is cold.
Why does my Saab 9-3 have blue smoke coming from the intake?
Your 9-3’s PCV system is responsible for taking the pressure that builds up in the oil pan and moving it to the intake side of the engine. It opens and closes, which keeps the intake free of oil. If it stays open, oil will build up in the intake, and you’ll end up with blue smoke coming from the exhaust as this oil is burnt.
What does it mean when your car has blue smoke coming from the tailpipe?
Blue-gray or gray-white smoke. Blue-gray or gray-white smoke usually means the engine is burning oil. If you have a turbocharged engine, a faulty turbo seal could be causing this, but if you have a more common engine, it’s likely one or more of the following problems:
Blue smoke indicates that your 9-3’s engine is burning oil. The question is how is oil getting into the combustion chamber? Here are the most common causes of blue smoke coming from your 9-3’s exhaust:
Why do I get blue smoke from my PCV valve?
White/Black/Blue Smoke from the Exhaust If the PCV valve or the hoses are blocked, the crankcase will push up oil into the combustion chambers, which will cause oil to burn inside the engine and go out through the exhaust pipe. This will cause a lot of blue smoke from the exhaust pipe.