Posts Tagged: Blue smoke from the exhaust

Blue smoke from the exhaust — what does it mean?

Blue smoke from the exhaust is a serious problem When you see blue smoke from the exhaust, it means the engine is burning oil. The problem could be worn piston rings, worn valve guides or worn/cracked valve stem seals. In older vehicle (pre-catalytic converter days), you could see blue smoke from the exhaust the entire time the engine was running. However, if the vehicle is equipped with a catalytic converter, you may only see blue smoke at startup. Once the catalytic converter warms up to operating temperature, it acts like … Read More