Drivers may not realize the color of the exhaust coming from their tailpipes can indicate a mechanical issue. Honestly, how many people take the time, especially during winter to look at their exhaust color? The answer would be not very many. At Lombardi Auto Body in Pittsburgh, PA, we want to share some exhaust repair information to help keep your vehicle running smoothly. 

Why do vehicles emit smoke when drivers first start them up?

A cold vehicle emits white, gray or black smoke when first started due to condensation, but not after the vehicle is warmed up.  When a vehicle is started, water is emitted in the form of a vapor.  By the time the vapor hits the exhaust system it condenses, and becomes visible.  This chain reaction is also the reason drivers see water dripping from the tailpipe. 

Seeing blue, black, gray or white smoke after a vehicle is warmed-up, could indicate a mechanical issue. Here are just a few mechanical issues to watch for:  

Blue Smoke

Blue Smoke in your exhaust is a result of engine oil being burned and is caused by an oil leak into the combustion chamber or worn piston rings, valves or cylinders. 

Black or Grey Smoke

Black or Grey Smoke in your exhaust results from incomplete fuel combustion caused by a clogged air filter; carburetor, choke, fuel injection or emission system malfunction; ignition timing off; or a blocked manifold. 

White Smoke

White Smoke in your exhaust indicates that coolant and or water is being vaporized in the combustion chamber and could mean the head gasket is leaking, the vehicle has a cracked block or cylinder or the engine is cold.

Stop by Lombardi Auto Body today or click here to schedule an appointment. Don’t forget, we will pick up your vehicle and return it to your home or office.