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03-11-2013, 12:22 PM | #1 |
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Occasional White Smoke...
After i had my Active Downpipes installed Occasionally white smoke will dump out my exhaust shortly after starting up and while warming up sometimes then goes away once engine is at operating temps... Should i be worried? is the Turbo going? Gasket? Could this be because the rest of my exhaust is still stock and carbons building up in the other cats, res, muffler?
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03-11-2013, 12:36 PM | #2 | |
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03-11-2013, 12:48 PM | #3 |
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Thanks that's exactly when mine smokes and it's only for a few seconds as well seemed to be normal to me
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03-11-2013, 03:28 PM | #4 |
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My bet is a bit of oil is slipping past your seals.
I used to drive a Mazdaspeed which are notorious for this issue. a large % of the k04 turbo seals would go out around 40k miles causing the infamous idle smoke. Engine cold or warm after a min or two of idle at one point mine would pour white smoke out. (eventually fixed with better oil and upgraded oil restrictor bolt) just fyi i wouldn't worry about it, like Pats said FBO on any car smokes |
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03-11-2013, 06:28 PM | #5 |
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Does it smell? If it smells sweet and is very white it might be coolant. If it's darker greyish white it may be oil.
If there's only a little bit of smoke it's really nothing to worry about; just try to monitor oil levels the best you can (yea, it sucks not having a real dipstick). You might be losing just a bit of oil. My last idea is that it's condensation (water) building up a little in the exhaust overnight, and then burning off into steam once you start up the car. You mentioned it happens on startup, so I assume it gets just barely cool enough overnight in palm beach county for some dew to form, and then you start up the car to go to work and as the exhaust heats up enough to evaporate all of the water you start seeing the smoke tapering off.. I get white smoke once in a while shortly after startup once in a while... pretty rarely, maybe randomly once every few weeks. I don't really think anything of it, I just assume a little bit of gas or oil made it past the engine without combusting and just vaporized up in the exhaust somewhere. Either that or the water idea. If the smoke isn't billowing out, though, I wouldn't worry too much about it.
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03-11-2013, 07:20 PM | #6 |
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I get greyish smoke every now and then when I come to a full stop. It only lasts for a split second, but it's a heavy burning oil smell. It started doing this as soon as I went with a straight through exhaust, to the day. Since it only happens when I come to a stop, I just attribute it to unspent fuel or whatever cooking off as I stop. It happens pretty rarely though, maybe once a day, sometimes less. I'm not concerned about it at all, catless cars just smoke/smell more.
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03-12-2013, 03:56 PM | #7 | |
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03-12-2013, 04:12 PM | #8 |
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It's just condensation. If you have secondary cats, you shouldn't see the smoke.
If you have a full straight pipe exhaust, you'll be puffing smoke like mad. It's still going to have a burnt smell to it because it is coming from the engine after all.
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03-12-2013, 04:35 PM | #9 |
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My car is FBO, and I have never had a single smoking exhaust, at idle or otherwise. Neither were any of my other cars I've boosted.
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03-12-2013, 05:29 PM | #10 |
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Thanks for the response, that's interesting. Does your car have any cats at all? From what I can tell you're in a minority (FBO guys with zero smoke at any point), then again most of us could well be driving around on crappy seals
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03-12-2013, 05:37 PM | #11 | |
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Have you had someone drive behind you to verify that? The amount of smoke and time it smokes is ever so small. Unless you have someone driving behind you - you would not know your car is smoking.
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03-12-2013, 06:01 PM | #12 | |
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of course... |
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