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Discussion Starter #1
I've heard of this before with this car but was curious what everyone else is experiencing. When I start my car each morning, especially if its been more then a day, my car initially blows blue tinted smake for about 15-20 seconds. I know thats oil but curious why so much with this car and is this something I should be concerned about
 

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What is your measured oil consumption = weekly dipstick checks ?

Oil
smoke for a few seconds after cold start is usually valve stem seals or, in your case, a possible PCV oil vapor overload. Do you regularly "exercise' the engine ? - If so the smoke should not be stuck rings.

Get the car up to 75 - 80 in D or high gear. Downshift one gear and let the engine slow the car down to <20 mph. Step on it again. Smoke? Rings.
 

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Discussion Starter #3
What is your measured oil consumption = weekly dipstick checks ?

Oil
smoke for a few seconds after cold start is usually valve stem seals or, in your case, a possible PCV oil vapor overload. Do you regularly "exercise' the engine ? - If so the smoke should not be stuck rings.

Get the car up to 75 - 80 in D or high gear. Downshift one gear and let the engine slow the car down to <20 mph. Step on it again. Smoke? Rings.
She gets exercised, mon-fri driven at 80mph for 2hr each day. No loss of oil, at least not noticeable.
 

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The title of this thread scared me. I hadn't even read it yet and was thinking that's why we havent tuned it yet, don't wanna lose that warranty.
 

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A bit of blue smoke at startup is often valve seals/guides or dripping turbo shaft seals, especially if it's worse after the car sits a couple of days as that gives more time for more oil to drip. Most likely valve guides though, as dripping valve guides put oil through the combustion chambers and will smoke first and clean up quickly. Dripping turbo seals will drip into the exhaust where it may take a little longer to get hot enough to make it smoke, and then it will persist a little longer before it clears up.

Ring issues usually show blue smoke along with excess oil consumption. Valve guides and turbo seals are usually very small drips and you won't notice excess oil consumption. The test mentioned above for rings is good; wind the engine up in RPM, and then let off and coast as long as possible in gear... if it puffs blue smoke as soon as you get back in the throttle that could indicate rings or possibly excessively worn intake valve seals/guides.

IIRC Hib has had the turbos and heads replaced on his cars for the same reason. I vaguely remember reading somewhere there was a revision to the valve guides for the 2017+ cars compared to the 2016s-- but I can't find that info at the moment.
 

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I second the turbo seals leaking. The car typically starts smoking a few seconds after startup, not immediately.
This issue is the number one reason I've kept the car stock, to see how it shakes out. I have not yet experienced it, but have seen numerous videos of this "phenomena".
 

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Discussion Starter #8
I second the turbo seals leaking. The car typically starts smoking a few seconds after startup, not immediately.
This issue is the number one reason I've kept the car stock, to see how it shakes out. I have not yet experienced it, but have seen numerous videos of this "phenomena".
Are turbo seals internal to the unit, otherwise meaning the fix is replacing turbos?

Would there be any other symptom because I hold solid boost.
 

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I would do or take the car somewhere and perform a leakdown test to verify if you have a problem and if you do, you'll be able to determine where the problem is coming from.

Good luck
Almtyscuzzy
 

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Are turbo seals internal to the unit, otherwise meaning the fix is replacing turbos?

Would there be any other symptom because I hold solid boost.
Yes, internal. Its a turbo replacement or a minor rebuild. But replacing the turbo with an oem unit would produce the same outcome 15k miles later. If found to be the problem on a tuned car, I think I would let it go. A slow leak can persist for the life of a car, without ill effects. I think.
 

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Mine did this exact thing for a fairly long time. Typically it was small amounts of smoke, but sometimes, after sitting for a few days, she'd really smoke up the garage.

Also, when getting on it for the first time out of the garage, I could definitely see a small puff of smoke in the mirror. After that though...not a thing.

This problem has seemed to correct itself for me. I haven't had a big smoke show for many months now. Oil loss was and still is non-existent. I even took it to the dealer and had it sit for a weekend before they started it. Of course, they couldn't replicate the issue.

At this point, I've done all I can. I still drive her hard and if something happens, it happens. Maybe take it to the dealer to get a record of it in writing, but otherwise, business as usual. That's my recommendation. Also, try not to stress about it as much as i did...

Sent from my SM-G975U using Tapatalk
 

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I get the smoky startups sporadically. I get them on every cold startup for awhile then they disappear completely for a period of time. I've never had to add fluids between dealer maintenance visits. If someone asks me about the smoke (I work in downtown snobbish Boca Raton), I just say it's a smokin' hot race car and there's nothing for it.
 

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Both my ATS-Vs have had that problem. Plus, about 18-months ago I've read of two other ATS-V owners' accounts of having this problem. The first one had its heads, then both turbos and finally, the complete engine replaced to fix the problem. It got so bad with the first ATS-V that one time, oil smoke filled our garage and another time it created a cloud of smoke in our front yard that was higher than the house's roof.

Our second ATS-V, went a year or so before it started doing the "oil-smoke-after-cold-start" thing, too. I've shot video of the problem and been to the dealer who's done great for me. The problem not my dealer. It is GM's Technical Assistance Center or "TAC". Right now they are telling the dealer to continue an oil use test with our second smoking ATS-V. Problem is, the oil-smoke-after-cold-start problem does not use very much oil, so it will take forever for TAC to admit there is a problem.

ATS-Vs are great cars to drive but they are quality nightmares. Add to that GM's reluctance to fix obvious warranty problems and you end up with a real fiasco when you need a problem solved. Not only was getting the first ATS-V oil smoke problem fixed, our second ATS-V (which now smokes after starts, too) is a six-speed manual. Right off the lot that car had a fifth-gear noise and vibration problem. GM was hesitant to repair the problem until I started posting about the issue on another site. After that, GM replaced the flywheel, clutch, transmission and driveshaft, but I digress....

I believe the oil-smoke-after-cold-start problem is caused by faulty turbocharger shaft seals.

I know I'm going to have to fight GM to get that problem fixed on our second ATS-V, but at this point, after all the battles I've had with GM over warranty repairs on ATS-Vs, its reluctance to repair problems is SOP for me. I can post links here to the articles I've written on that other site about warranty fights with GM our our two ATS-V's but if you google something like "a little v-blog" you'll probably land there.
 

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After reading all these problems I'm thankful all I seem to have is a little squeak under the car when I first drive it in the cold. Something like a body bushing or rubber grommet rubbing. That said I get a little mist on start up that smells slightly of oil but nothing like whats described here. Thats after nearly 40k miles, much of it beating on this thing like I'm trying to break it. It seems most of these problems are coming from 2016 owners. This makes me interested in conducting a little survey on which years and options seem to be the most problematic.
 

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Discussion Starter #18
After reading all these problems I'm thankful all I seem to have is a little squeak under the car when I first drive it in the cold..................
keep in mind my car has 50,000 miles and it's not as bad as some of the examples that have been posted here. I get some smoke at first start up and then after about 10 or 15 seconds it tapers off to nothing.
 

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After reading all these problems I'm thankful all I seem to have is a little squeak under the car when I first drive it in the cold..................

I think 95% of it is people over reacting about nothing to be honest lol

There was one dude that made youtube videos and a dozen posts about his transmission "was broke" because it would "clunk" when he dumped the clutch in and out at like no rpm and made it clunk, yet 3 yrs later it was still driving fine when he turned the leased car in?

Pretty sure things that are broke dont function perfectly for years.
 

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I've been driving my ATS-V Coupe as my daily driver. In DD service, that car works out pretty well. I still really like the looks of an ATS-V with the Track Package. I'm one of the people who likes the ATS-V's instrumentation. I've accepted the 2016 version of CUE–it is what it is. One thing I've grown to like are the fold down rear seats, which are standard on the Coupe but optional on the Sedan. The cheapskate I am, we didn't order them on our other ATS-V, a four-door. In the Coupe those folding seats have come in handy in bringing some purchases home form Home Depot or Costco and it's also been useful on a few road trips we've taken.

I have fun with the car's relatively low gearing, 3.73s and a 2.66 first gear. That makes the car a rocket ship in highway onramps which are two cars wide and there's a BMW, Audi, Benz or some millennial in a slammed ricer in the other lane.

But, then, as much as I like looking at and driving my ATS-V, the quality problems with the car and GM's poor response to warranty claims continue to making me and my little -V a "love-hate" relationship. A month ago, I had to have the CUE touch-screen replaced because it went "bonkers"–the radio preset display would start "vibrating" and would not respond to any touch. So, now the screen in both our ATS-Vs have needed replacement and there are lots of other cases where ATS touch screens have failed. That's ridiculous for a compact coupe costing upwards of 60-large.

Worse, yet, as I mentioned previously in this thread, the car has the same problem with oil smoke out the exhaust right after cold starts that the OP posted about. If you've ever read my Little V Blog, on another web site (this forum's rules prevent me from posting a link or the name of the site), you know my other ATS-V, an early production Sedan, had a long-standing problem with that which prompted GM to replace, first, the cylinder heads, then, both turbos and, finally, the complete engine.

Like the OPs car, my coupe is now doing the smoke-after-start "thing" on a regular basis. I've been to my dealer, Bunnin Cadillac in Santa Barbara CA, twice about this and GM has taken no action so far. This is not a problem with the people at Bunnin which have done their best for me. With today's GM, dealers have little discretion or decision-making power on warranty issues. It's GM's Technical Assistance Center (TAC) which is often bureaucratic and and regularly in denial that a problem exists and, all-too-often, in my opinion, deaf to customer satisfaction issues.

The problem which causes this short duration oil smoke after cold starts lies with the turbocharger shaft seals and I'm not making this stuff up, either. Go back in this Blog to the discussion of this oil smoke problem with our ATS-V Sedan. In post #251 of my blog, you'll find pictures which document the trouble. I also have video of the car blowing smoke.



A turbo-supercharger has a turbine wheel, which is driven by exhaust flow, and a compressor wheel, which compresses the intake charge, on a common shaft. On the turbine side of the turbo, when the engine is running, if the seal on that end of the shaft is faulty, exhaust pressure keeps oil from leaking. After engine shutdown, because the turbocharger shaft is one of the lowest parts of the engine's pressure lubrication system, oil remains in the cavities through which engine oil flows to the shaft bearings and oil above that creates a small amount of head pressure. If the turbine shaft seal is faulty, there will be gravity-flow of oil past that seal. From there, oil migrates to the turbine wheel and, if there's enough of it, drips off the turbine into the turbocharger compressor housing, then pools in the bottom of that housing–again, see the pictures referenced above.

The next time the engine is started, within seconds, exhaust heat burns that oil away and the customer, in this case, me, sees a cloud of oil smoke which blows out the exhaust pipes for several seconds. Depending on how much oil has leaked past the seal during the time the engine was not running, this can be a little oil smoke or a huge cloud of of it–trust me, I've seen both plenty of times.

When a dealer contacts TAC asking for its blessing on a warranty repair for this problem, TAC, which, IMO, seems to have a lot of people who don't know much about cars and/or just don't listen, usually responds, regardless of what details the dealer gives them about the customer's problem, by telling the dealer to begin a "Measurement of Oil Consumption" according to GM Information Bulletin 01-06-01-011J or whatever current revision of that bulletin which is in force at the time.

The problem with this type of oil use problem and GM's "Measurement of Oil Consumption" procedure is that, while the duration of the oil consumption might only be 10-20 seconds but can make a huge cloud of oil smoke, the actual oil consumption over the 2000-mi distance mandated by the procedure will be minimal because the only time oil is consumed is the 10-20 seconds after start-up. For the rest of that ignition cycle, oil use will be normal–which of course is minimal. In fact, you could have a car that blows oil smoke every time the engine is started but which GM would never fix because, given an engine that has only a start-up smoking problem due to a leaky turbo shaft seal, it would not use more than a quart of oil in that 2000-mi test which is the minimum oil use for which GM will normally take action.

Back to my Coupe's smoking cold start problem: GM told TAC to start an oil consumption test which means, unless I take some other kind of action, the wizards at the Technical Assistance Center will never do anything to fix the freakin' car.

Some might suggest: get the dealer to contact their GM "Rep". Problem with that is: long-gone are the days when the GM representatives who work in the field with dealers had a lot of discretion in matters of warranty administration and customer satisfaction. The way things work between GM Reps and dealers nowadays isn't much better than how things work between dealers and TAC.

So where does that leave ATS-V owners? Well...we're stuck with cars we love to drive but suffer from a lot of quality issues and are warranted by a company which has lost sight of what makes up good customer satisfaction.

Crappy quality and a arduous process customers have to endure in getting GM to process warranty claims is one reason Cadillac has become a second tier luxury brand behind Mercedes, BMW and Lexus.
 
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