Emissions and Exhaust Systems
Head Gaskets and Valve Covers
Mufflers and Tailpipes

What is wrong if your car is blowing blue smoke from the exhaust?

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Answer

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Wiki User
08/23/2012

you have a dead baby in the gas tank

The above answer is unlikely as it would not fit through the fill spout. However, This means the engine is burning oil. It is usually worn piston rings or valve stem seals.

Sometimes there could be a problem with the emission system.