Posted on 12/23/2022
When you see a car emitting colored exhaust smoke, it's easy to assume something is wrong. But what does this smoke indicate? To answer this question, it's essential to understand the different shades of smoke and what they mean. As such, we're going to explore the various signs that colored exhaust smoke can give you about the state of your vehicle. Black Smoke Black smoke is one of the most common types of exhaust smoke and generally indicates an issue with fuel delivery or combustion. This could result from too much fuel being delivered compared to air or something blocking the airflow into the engine, such as a faulty mass airflow sensor. Black smoke could also signify worn piston rings or valves, causing oil to enter the combustion chamber and be burned off along with fuel. Blue Smoke If blue-colored exhaust is observed, the cause is usually an oil leak from another part of the engine. This could result from worn piston rings, valve stem seals, or gaskets and ca ... read more