Is it true that the slightest bit of white smoke from a tail pipe means a cracked engine block?

12 Answers

  • Anonymous
    1 decade ago
    Best answer

    It's possible, but not absolute.

    If the engine is good and warm and it's not cold outside....possibly. If the smoke is white in that situation.....possibly.

    Have you looked in the radiator? If not, do so, but do so ONLY when the engine is completely cold! If you can see oil in the radiator have problems.

    Pull out the dispstick (used to check the engine oil) and wipe it it and then check it again. It should NOT look frothy, like a chocolate milkshake. If have problems.

    A car won't run on a cracked block for very long, if at all.

    The white smoke coming from the tail pipe means there is water leaking into the combustion chamber. Blue smoke is not as clearly could mean you have oil getting into the combustion chamber, but it could mean other (normal) things too.

    Hope this helps, and good luck.

  • Tom H
    Lv 6
    1 decade ago

    No, possibility's are cracked head or block or leaking head gasket, or its cold out any of the first three would cause a lot of white smoke that would not go away as the car warmed up. its normal for a car to have a little plume of white smoke until its warmed up and then it should stop. If it doesn't stop and your loosing coolant that would indicate a problem.

  • 1 decade ago

    A cracked engine block would be catastrophic to your vehicle's safety.

    White smoke is symptomatic of a coolant leak of some sort. Have your mechanic check it out, it's probably a cracked cylinder head or a leaky head gasket.

  • 1 decade ago

    lord no, it just means perhaps youre motor isnt burning all the fuel in the combustion chambers, or that there is a little bit of oil seepage into the cylinders, just have engine gaskets rebuilt, its fairly inexpensive, and will boost enginge power and life...

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  • it can mean that the head may be blown, best to get it checked out ASAP, this is when water/collant gets into the engine and causes a mild combustion, hense blowing the head gasket !! but to be safe bring it to a mechanic.

  • webman
    Lv 4
    1 decade ago

    no,there actually is quite a bit of water vapour in an engines exhaust. just think of what you see coming out when its real cold out.

  • 1 decade ago

    No, your car could emit white smoke for several reasons, not all of them are critical.

  • 1 decade ago

    no it means your engine may still be cold, you have bad fuel, fuel mix is wrong!! could mean lots of things!!

  • 1 decade ago

    No. It can be lots of much-less-serious things.

  • 1 decade ago


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