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Anyone ever get a puff of black smoke on takeoff?

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Old 08-31-2009, 01:34 PM
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Anyone ever get a puff of black smoke on takeoff?
My 09 is an auto and the other day I got in it and when it hit second,it shot out a puff of black smoke. A friend saw it happen. Happen to anyone else?
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Old 08-31-2009, 01:54 PM
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Originally Posted by gmdealerguy
My 09 is an auto and the other day I got in it and when it hit second,it shot out a puff of black smoke. A friend saw it happen. Happen to anyone else?
I think it's pretty common. Something to do with the direct injection I think. I know you will see a puff of smoke upon startup if you look closely.
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Old 08-31-2009, 03:21 PM
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it happens when it gets overly rich its "normal" for our cars....dont worry
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Old 08-31-2009, 03:49 PM
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Okay. Thanks guys.
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Old 08-31-2009, 03:59 PM
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Its especially noticeable if its cold on take off, let your car warm up a bit before flogging it.
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Old 08-31-2009, 04:39 PM
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Yes I saw the same thing happen when what looked like a 2LT try to merge on the Merritt Pkwy in CT. The kid gunned it (he must've been a lot jockey swapping cars w/ another dealer, the HHR had dealer plates on it and the OEM sticker in the window still) and you saw a big cloud of black smoke come out of the tailpipie.
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Old 09-01-2009, 07:42 AM
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It happens on my 87 5l occassionally. No big deal
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Old 09-01-2009, 10:06 PM
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I do see a "puff" sometimes when it's cold, but never something that could be characterized as a "cloud".
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Old 09-02-2009, 06:45 PM
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Originally Posted by gmdealerguy
My 09 is an auto and the other day I got in it and when it hit second,it shot out a puff of black smoke. A friend saw it happen. Happen to anyone else?
Well, I would have to say it is normal; my exhaust tip is BLACK after just a few hours of drivin' What about you? Turbo has a lot do with that along with direct injectors.
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Old 09-06-2009, 01:24 PM
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yeah, that's pretty normal LNF behavior. run rich on start-up, plus being DI, nothing to be concerned about.
Last edited by SindyDix; 09-08-2009 at 07:59 PM. Reason: fixed problem
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