Question about 2002 Chevrolet Malibu

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A lot of vapor comes out htrough the repirator from the water tan

A lot of vapor comes out through the water tank and all of a sudden i am driving and out comes all this smmoke from the repirator and it runs well and fast it just starts to blow a lot of vapor

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  • yadayada
    yadayada May 11, 2010

    what water tank?



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I think you mean 'radiator' and if you do, you probably have a leaking core or tank although it could be something as simple as a pressure cap that isn't screwed on correctly. 
Once it starts, you need to stick your head under the hood (open it carefully, you might get a face full of steam or hot water) and search for the source of the leak. 

Posted on Feb 20, 2009


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Well, this definitely sounds like you have a blown head gasket, and maybe a busted heater core (water vapor out of air vents). Both were probably caused by the car overheating creating a lot of pressure in the cooling system and blowing the head gasket(s) and maybe the heater core. The vapor out of the vents could also be caused by external coolant leakage of the head gasket on the hot engine bringing the vapor inside the cab via the heater fan...

I'd get that checked before any major engine damage happens...

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