What Does the Smoke from My Exhaust Mean? - Chevy Cobalt SS Forum : Chevrolet Cobalt SS Forums
 
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post #1 of 1 (permalink) Old 02-01-2013, 08:56 AM Thread Starter
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What Does the Smoke from My Exhaust Mean?



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If you see different colored exhaust fumes itís time to pay attention to your car. Even if your vehicle isnít flashing any warning lights, the smoke coming from your exhaust is a signal that something might not be working properly.


What does BLUE smoke from my exhaust mean?
If your car is blowing blue smoke, itís a clear sign that the engine is burning oil. What happens is that the valve guide seals or piston rings are worn out, and oil is leaking past from where it should be lubricating the moving parts, to the combustion chamber where itís being burned up with the fuel.

If youíre seeing this kind of smoke, check your oil regularly and watch for consumption issues. While an issue that normally should require immediate attention and expensive repairs, including some internal replacement parts, if youíre vehicle is old and the leak is minimal, it can be carefully managed by topping up the oil on a regular basis.

Along with environmental damage, burning oil can cause rough starts, as the process can ruin the carís spark plugs.

There is another reason for blue smoke, and thatís if the car is turbocharged; the smoke being a sign that the blower is in need of rebuilding or replacement.
There is a diagnosis of your blue,gray,white and black smoke. Read more at AutoGuide.com
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