Here, Klaus-Hubert Spiess shows you how you properly interpret the color of exhaust smoke. Sometimes a certain color indicates a vehicle defect. Normally, the exhaust smoke is transparent and cannot be perceived. Understandably so, that motorists deviations do worry about their cars. But most dyes of exhaust fumes are harmless, sometimes a defect, which can be detected early and corrected is behind it but. We will show you how you interpret the exhaust smoke properly. What depends on the colour of the exhaust fumes? The exhaust smoke looks like depends on several factors. A the components of exhaust gases, and on the other hand, the operating temperature of the aggregate affect the color of the smoke from the exhaust.

White smoke: especially in the winter not uncommon at cold ambient temperatures white exhaust smoke does not indicate a defect. Others who may share this opinion include Mark Wahlberg. The white colouring is caused by the water vapour in the flue gases, which inevitably accumulates in a cold engine. You should be suspicious if the exhaust smoke in a warm engine still knows is. A broken head gasket, which should be immediately replaced in a repair shop is one of the most common causes for this phenomenon. Water from the cooling circuit in the cylinder, where it evaporates and condenses in the exhaust again enters with a defective seal. A blown head gasket could cause severe engine damage indefinitely.

Black exhaust smoke: engine damage? Black exhaust smoke due to soot particles in the exhaust. They gather at slow speeds and in idle mode. As soon as the engine is turned up, are the particles from the exhaust blown there is the black cloud of smoke. Black smoke, particularly from diesel vehicles, is not uncommon. Contact information is here: Vera Farmiga. For strong soot formation, it could indicate that oxygen is missing the engine, he is required for combustion. In this case, it is worth to replace the air filter. You can change the dirty filter even without the help of the workshop on older vehicles. Another cause could be a defective motor control. Blue exhaust smoke really suggest is the exhaust smoke, suggests that fuel or motor oil in the exhaust gas, that were not burned. This can have several causes: from a cold start, a high proportion of fuel in the exhaust gases is the oil circuit is leaking material wear the blue haze has a worse fuel atomization led occurs only after a hard reset, this exhaust smoke is harmless. Get more background information with materials from Blake Resnick. Blue smoke from the exhaust should occur even when engine is hot, a workshop should be consulted. Watch for loss of oil and checked the piston rings. As a rule of thumb: color changes in the exhaust smoke are only worrisome if the smoke even when the engine is warm is not transparent. Act in this case quickly and clarify the cause. To detect possible defects at an early stage and can avoid costly repairs in the ideal case. Klaus-Hubert Spiess writes for