what does it mean when your engine blows white smoke out of your tail pipe and no acceleration at all?

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  • RC
    Lv 4
    9 years ago
    Best answer

    Yep, as the others have said, it means a blown head gasket. Basically, think of the engine as two pieces of a clam shell, one on top of the other, with all of the innards (cylinders, and pistons) sealed up between them. The gasket is a piece of rubber-like material that sits squeezed between the two halves of the clamshell and seals them up. If the gasket gets a small hole in it, then antifreeze leaks into the cylinders.

    It's been a while since I've had to have one replaced, but it's basically about a $500 job. The part--a new gasket--will cost maybe $20, because it's just a few ounces of a rubber-like material. But the other $480 is labor, because it basically entails taking the whole engine apart and putting it back together.

    So if the car is worth more than $500, then you need to stop driving it IMMEDIATELY as soon as you see the white smoke. Don't drive it home--stop and have it towed. If you keep driving in this condition, it can basically destroy the engine completely.

    If the car is a beater that's worth less than $500, then MAYBE you can find some product that you pour into the antifreeze that will seal up the little hole, and maybe get a few more miles out of the car. It probably won't work, but it's probably worth a try, if the car is an old beater. If it doesn't work, just buy a new $500 car.

    But if you can't replace the car for $500, then the only thing to do is get the new head gasket. Call around, since prices will vary. A dealer will charge much more than $500. Some friendly shadetree mechanic might be able to do it for less. When you call around, tell them you need a new head gasket for a (year) (make) (model) with a (size) engine. The more you sound like you know what you're talking about (even if you don't), the better chance you'll have of getting an honest estimate from the small shop. (The dealer will quote a high price, no matter what.)

  • 9 years ago

    You've got a blown head gasket. Do not continue to run the engine or you will ruin it. Coolant will seep into the combustion chamber decreasing it's volume. The piston won't be able to complete the stroke and something must give, usually a rod, sometimes the crankshaft. The biggest danger is after you turn off the engine and the coolant is not being evaporated or passed through as white smoke. As the car is still hot and cooling, liquid is accumulating into the combustion chamber. If your piston normally has a 4" stroke but an inch of coolant has accumulated it's room to stroke has diminished by an inch and when you start the engine..BAM .. something breaks.

  • 9 years ago

    I agree with the other answers. A bad head gasket allows coolant into your cylinders and causes white smoke from the exhaust. Check your coolant reservoir and see if it is low which will be a good clue that you have a bad head gasket.

  • 9 years ago

    serious issues. You could have a blown head gasket, cracked engine block, or some other serious engine issues... check the oil and see what it looks like, also look in the cap where you add oil, if it looks brown, and thick like peanut butter, or milky you need to take it to a mechanic.

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  • 9 years ago

    head gasket is leaking anti-freeze into the combustion chamber and going out the tail pipe.

  • Megan
    Lv 4
    4 years ago

    blower motor, motor regulator (resistant) , AC compressor or the belt

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