Smoke from exhaust

What causes white smoke from exhaust? Why does exhaust smoke come out of exhaust? Blue smoke from your exhaust. Grey smoke from an exhaust.

In fact, what at first appears to be white smoke may not actually be white smoke in the first place. Instea it could in fact be steam from condensated water that evaporates in the hot exhaust system.

This will often happen when the engine is still cold. Any smoke coming from your car ’s exhaust pipe is a sign that your car is in distress.

Pay attention to what it needs to ensure more miles for your vehicle. Become an AutoGuide insider. Smoke from car exhaust can be of various types and can be because of a variety of reasons and situations.

Ranging from blue, grey, white and blue, every type directly or indirectly is because of a distinct phenomenon. On cold winter days, it is common to see white smoke from exhaust pipe as soon as you start the car.

This is nothing but steam caused due to condensation. White Smoke from Exhaust on Startup.

As the engine warms up after a few minutes, this white smoke will not be reduced because condensation is dissipated. Inside the vehicle, there is a gasket that seals the manifold to the head.

If you are in the unfortunate situation where white smoke continues to come out of your exhaust after you’ve let your car warm up for more than a couple of minutes, then you could have some internal problems taking place. This means the engin e might be overheating and the result is white smoke from the tailpipe.

Black smoke from exhaust can result from excessive intervals between oil drains, contaminated oil, wrong oil for application, improper maintenance of proper levels of oil in the engine etc. Ensuring regular maintenance with the right lubricant will minimize deposits and wear to prevent black smoke.

When it happens, the leaking oil from piston rings or valve seals flow to the combustion chamber where it gets mixed with the fuel. If the positive crankcase ventilation valve gets stuck, the oil, air, and gas will continue to mix inside the engine. This is very bad and will cause blue smoke to come out of the exhaust.

Worn Engine: Another common cause of blue smoke is a worn engine. Every engine has pistons that move up and down the cylinder. Several things are causing the blue smoke coming out of the exhaust. Bad Valve Seals (Not diesel cars).

If you are not driving a diesel car, and you see blue smoke coming out of the exhaust, then the cause could be bad valve seals. Every vehicle has valves that open and close. These valves are designed to open mechanically by pressure from a Rocker Arm. Smoke rarely emerges from the engine bay, but if it is, there is a critical issue within your engine that needs immediate attention.

On the other han smoke from the engine is not a source to determine what the malady is under the hood of your car.

In both cases, the white smoke is just steam, which is water vapor that has accumulated in the exhaust system, and heat is changing it to steam. When the engine is fully warmed and you see the smoke dissipating, you know it’s only steam.

Normally, the smoke that comes from the exhaust is a grey, thin fume. The engine itself is cold. On cold mornings, the smoke may be white and will eventually dissipate.

One of the main causes of white exhaust smoke is engine coolant leaking to different parts of the engine. If this is the cause, then the exhaust smoke may come with a sweet smell. There may also be a low level of coolant reserve.

Unusual smoke from your exhaust is rarely a good sign, so here is a round-up of the possible diagnosis, be it goo bad or seriously ugly. Smoke coming from a motorcycle exhaust indicates the engine is not running correctly.

Typical problems include fuel not being completely burne too much oil or coolant evaporating. If ignore such problems can result in significant engine damage, and being able to identify the origin of the smoke, as quickly as possible, can reduce the risk of a costly repair.