Does your car smoke?Tell me the color and you will know the breakdown, sign our newsletter ;-)!

two fotos ¿Tu coche echa humo? Dime el color y sabrás la avería ¡Apúntate a nuestra newsletter ;-)!  ¿Tu coche echa humo? Dime el color y sabrás la avería ¡Apúntate a nuestra newsletter ;-)!

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Rubén Fidalgo 0two December, two017

Diesel produces more smoke than gasoline when burn, so it is normal for all diesel cars to generate some emissions.However, not all fumes are the same and some of them can be giving us clues about possible mechanical problems, here you will see why.

Surely you've ever seen how the front car expels strange color smoke.Have you stopped to look at your car also happens to your car?Much eye, because it is a symptom that something can go wrong.We could even make a kind of saying: Does your car smoke?Tell me the color and you will know the breakdown.

 ¿Tu coche echa humo? Dime el color y sabrás la avería ¡Apúntate a nuestra newsletter ;-)!

It is clear that the smoke is known where the fire is ... and, depending on the type of smoke that comes out of the escape of our car, we can find out what is happening inside the engine and take appropriate measures to avoid major problems.

White and thick smoke when turning the engine

Does your car cost to light?Once in progress, it is a lot of white smoke and this is quite thick (it takes a while to disperse)?As soon as the engine is heated, stop throwing it?Normally, it is due to a bad set -up of the diesel injection system.That white smoke is actually diesel vapor: if the injection pump is out of point and injects the fuel too soon or too late, instead of burning for the compression in the cylinder, only one part is burned;The rest evaporates.If your vehicle does not have a injection pump because it is a rail or bomb -injector common.

Cold and hot white smoke

A little white and not very thick smoke (it is quickly dispersed) is normal when lighting the engine, especially in winter.By burning a hydrocarbon - gasoline or gasoline - water vapor is generated.When the propeller turns off, the cold of the exterior condenses said steam and makes water in the exhaust tube..When we start the mechanics and raise the temperature, we evaporate the water from the escape and that white smoke comes out, which is not usually much.If you persist, we will normally have a cooling problem: part of the antifreeze enters the cylinder and mixes with fuel.This smoke has a very peculiar smell and is usually accompanied by temperature failures;Most likely, the butt joint is wrong and you have to replace it.It is not a cheap repair;about 6 hours of labor plus the planned of the cylinder head, etc., oscillates between 600 and 1.two00 euros.However, if we take to solve it or we are not careful and "we pass" by temperature, we can deform both the cylinder head that cannot be planned and we need a new.Usually around 3.000 euros.

Bluish and odorous smoke

If a somewhat bluish smoke comes out of the escape and it smells a little to roasted, what happens is that oil is entering the combustion chamber.There are four possible reasons for this to happen:

1.- That the Board of Cy is in poor condition and pass distribution oil to cylinder number 1.In that case, smoke usually always appears.

two.- That the turbo is spent and the oil that lubricates its axis is sneaked into the intake circuit.The smoke will come above all by accelerating strong and when we are standing at the idle.

3.- That the seals of the valve guides are spent: the smoke comes out by the exhaust when we release the accelerator and the car retains.It is due to the fact that empty is generated in the cylinders and absorb the oil that oozes through the valves.

4.- That the engine is spent (normally, the piston segments).In this case, smoke is usually always coming out, but more when accelerating.What happens is that there is no airtight closure between the piston and the cylinder wall and lubrication oil passes to the combustion chamber.

Black smoke to accelerate

Black smoke is due to a bad combustion of diesel, normally due to excess fuel (or lack of oxygen) or a bad spraying of injectors.It usually occurs when accelerating thoroughly;If you do it only for an instant to "stomp.".Most of the time it is due to a problem with the exhaust gas recirculator valve (the famous EGR): when stepping on the accelerator should be closed so that it only enters the clean air cylinder and rich in oxygen, so thatBurn the excess fuel that we inject when accelerating.If it does not close, the fuel will continue to mix with the recirculated exhaust gas;By having less oxygen, diesel does not burn completely and that's why smoke comes out.It may also be that we have an air intake in the intake collector or the flowmeter in poor condition.An too dirty air filter can also cause this problem, not letting the admission air into correctly.If all that is perfect, the failure is in an injector that does not spray the fuel well: if the drops injecting into the cylinder are too large, they do not mix with oxygen optimally and do not burn well.