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Sounds like you have a head gasket blown. Check the oil to see if you have any water in the oil. If not that is good. You can also remove your spark plugs one by one to see which gasket is blown, whether it be your drivers side or passenger side. Hope this helps.

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โˆ™ 2008-07-15 20:24:49
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Q: Chevy truck water coming out tailpipe a little white smoke but it runs fine but if you let idle for about 1 hour it shuts down but it will crank right up help?
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