2009 honda odyssey blue12/9/2023 ![]() Your Odyssey’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. This is most common in high mileage engines and is a sign that the bottom end has worn out. When the piston rings fail, oil passes through them and into the combustion chamber, and you’ll get blue smoke from your exhaust. This keep oil out of your Odyssey’s combustion chamber. On top of this, piston rings are wrapped around the piston for an even tighter fit. ![]() The gap between the cylinder wall and the piston is so tiny that you can’t get a piece of paper in-between them. But, it’ll be at its worst when the engine is starting up, as oil has had time to seep past the valve seals while it’s sitting.Įach piston in the vehicle’s engine is responsible for compressing the air and fuel mixture into a smaller and smaller space before the spark plug fires. If your Odyssey’s valves are worn, you’ll see a hint of blue smoke while the engine is running. Valve seals are utilized to keep the oil from riding down the valve stem and into the combustion chamber while the valves are letting air and fuel into the cylinder. They are lubricated like the rest of the motor. Your Honda Odyssey’s valves let both air and fuel into the combustion chamber. Here are the most common causes of blue smoke coming from your Odyssey’s exhaust: The question is how is oil getting into the combustion chamber?īlue Smoke From Exhaust Causes: Honda Odyssey Reasons for blue exhaust smoke include bad valve seals, valve train wear in general, the PCV valve, burning transmission fluid and more.īlue smoke indicates that your Odyssey’s engine is burning oil. A very common problem that affects all vehicles (including the Honda Odyssey) is blue smoke coming from the exhaust.
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