Why Is There Smoke Coming Out Of My Car's Exhaust?

Is the weather cold and did you just start your car?

Is the smoke coming out when you start the car and is white?

Is the smoke coming out when you accelerate and is white?

Is there white smoke coming out as well as a liquid dripping from the exhaust?

Is there black smoke coming out of the car's exhaust?

Is there grey smoke coming out of the exhaust?

The smoke will be normal as it will mostly comprise of mist which is due to the low temperature.

One of the most common causes could be a leak of coolant due to a crack in the engine block. There could be some other cause as well so it is better to get it checked.

The cause could be a leak of transmission fluid which is being burnt by the engine. There will also be a burnt oil smell. It is better to get it checked as it could lead to further problems.

This might be due to the engine misfiring and pushing out raw fuel. You will also smell raw fuel fumes. Get the car checked as there could be many reasons for the car to misfire such as faulty spark plugs .

The problem could be as small as the exhaust being dirty and carbon getting stuck to the exhaust which is being blown outward or the the car could be burning too much fuel due to a bad air filter or some other intake components such as fuel injectors or air sensors. It is better to get the car checked in case there is a serious fault.

Grey smoke is hard to diagnose as it could mean the car is burning excess oil, the turbocharger being faulty (if any) or something else. Take the car to a mechanic and get it checked.

If there is some other problem, contact your local mechanic and get a full check up of the car.