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2013 Chevrolet Suburban
Platform: GMT 400, 800, 900

White exhaust smoke

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Old December 18th, 2013, 10:23 PM
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It might be oil burning from the valve covers but I'm not to sure how its getting to exhaust.

My brother has this problem but it just smokes in the engine. All he needs is to replace the valve cover gaskets.
Old December 18th, 2013, 10:32 PM
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I don't know why it's smoking like that. Like I said I replaced the intake manifold gasket and it's holding antifreeze now.
Old December 18th, 2013, 10:33 PM
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I'm trying to upload the video now
Old December 18th, 2013, 10:37 PM
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Old December 19th, 2013, 12:03 AM
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Any suggestion on what that some can be???
Old December 19th, 2013, 7:19 AM
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Head gasket maybe.
Old December 19th, 2013, 9:26 AM
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I was thinking that. But wouldent I be losing antifreeze ?
Old December 19th, 2013, 8:26 PM
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It doesn't take much liquid to make a lot of white smoke. It could be that the radiator pressure is putting antifreeze in a cylinder overnight and then burning off on the first start. Does it continue to smoke white or just on start up?
Old December 20th, 2013, 7:23 AM
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It's just at start up, then the rest of the day it's fine..
Old December 20th, 2013, 9:25 AM
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Then it almost has to be a head gasket or cracked head.


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