Black smoke that is coming out of an exhaust pipe is usually because something inside of the fuel injection system is dirty; it can also be the result of dirt somewhere in the exhaust system. Black smoke is a normal and harmless occurrence in vehicles that are powered by diesel fuel.Know More
When black smoke is present only when the vehicle is first started, it is generally harmless. It simply means that the engine is working harder to burn the fuel and the result is dirtier smoke coming out of the back.
Gray smoke is often a more concerning issue when it is coming out of the exhaust pipe. Gray smoke is a symbol of oil burning and may be cause for concern because the oil can easily cause a fire to start within the car. Even if the oil is not burning yet, it is often in the combustion chamber when there is gray smoke present.
Thick white smoke is a cause of serious concern when it is coming out of the tailpipe. Thick white smoke usually means that coolant is burning and the vehicle is likely suffering from some type of damage.
Thin white smoke is a normal occurrence and means the vehicle is functioning properly.Learn more about Car Parts & Maintenance
White exhaust smoke is usually the result of condensation and moisture buildup in the exhaust system; it can also be the result of burning coolant within the engine. When white exhaust smoke is thin and vaporous, it usually does not signify a problem within the car.Full Answer >
White puffs of smoke when starting a car with a cold engine on a cool, damp morning are normal. They are due to water condensation in the exhaust system and engine. As the condensation warms, it creates a white vapor similar in nature to that formed by human breath on a cold day. It disappears as soon as the condensation evaporates.Full Answer >
The cost to repair or replace an automobile's muffler and exhaust system can range from $75 to $2,500, as of May 2015. Many factors affect the total price of the repair or replacement of a muffler and exhaust system.Full Answer >
White smoke coming from a car's exhaust can stem from a variety of causes, the most common being condensation. Because of condensation, which occurs naturally as engines cool, water can become trapped in the exhaust pipes. Steam forms as the car heats up, escaping through the tail pipe.Full Answer >