Engine smoke
Thread Starter
Racer
Joined: Feb 2017
Posts: 432
Likes: 188
From: powder springs georgia
Engine smoke
I have a 2017 stingray with standard 6.2 l engine..I have noticed for a while now that sometimes when i start or just going down the road it will emit a huge...like 8 ft. diameter ball of blue/black smoke?? Then nothing for weeks..
I asked my dealer about it but got no good answers..It runs fine, no engine codes are anything. Not losing oil to my knowledge.and still good gas millage..My buddy says I need to wring her out now and then..The exhausts are black and always have been. I clean them to let the chrome shine....
Do i need to add some type of fuel additive to clean her out??
I am a little concerned but not really...Just curious..It has 11,000 miles on her and just used around town and rarely interstate..So max 55mph...
There is a lot knowledge out there and i figure you guys would be able to give me some good advice.
thanks
I asked my dealer about it but got no good answers..It runs fine, no engine codes are anything. Not losing oil to my knowledge.and still good gas millage..My buddy says I need to wring her out now and then..The exhausts are black and always have been. I clean them to let the chrome shine....
Do i need to add some type of fuel additive to clean her out??
I am a little concerned but not really...Just curious..It has 11,000 miles on her and just used around town and rarely interstate..So max 55mph...
There is a lot knowledge out there and i figure you guys would be able to give me some good advice.
thanks
Race Director
Joined: Jan 2014
Posts: 10,709
Likes: 7,101
From: Fulshear, TX
Make sure you're using a TopTier premium fuel, and yes, get on 'er now and again to really clear those pipes! The black soot covered exhaust tips are normal for a direct injection engine.
Drifting
Joined: Feb 2005
Posts: 1,445
Likes: 173
From: San Jose Ca
Is the smoke coming from the exhaust, or somewhere else? I'd think it would be a good thing to wind it up a bit now and then, but not totally necessary. Regardless of how you drive, that much smoke, from wherever, can't be good.
Intermediate
Joined: Jul 2019
Posts: 49
Likes: 10
From: Near the Chesapeake
This happened to me on my 2019 model after my first oil change. Evidently, dealer managed to overfill by at least a quart. Good news was they did another oil change and no damage caused.
Drifting
Joined: Feb 2005
Posts: 1,445
Likes: 173
From: San Jose Ca
Yeah but what do the tops of the valves look like? I'll bet the dealer didn't look at them.
Team Owner
Joined: Jan 2007
Posts: 29,063
Likes: 1,839
From: cookeville tennessee
ttt
I agree a few short WOT if you are afraid to really get into the car. It was made for this to a point not going to hurt it. Robert
Racer
Joined: Oct 2010
Posts: 301
Likes: 156
From: Houston Texas
I've not experienced the same symptoms you're describing, but I'd be suspicious that maybe your catalytic converter catalyst might be "dead" and not getting hot enough to burn off deposits. On occasion, the depots build up and begin plugging off. Eventually, the backpressure blows the deposits from the exhaust.
Just a guess, but what I can tell you is that what you're experiencing isn't the norm.
Good luck with finding the problem
Just a guess, but what I can tell you is that what you're experiencing isn't the norm.
Good luck with finding the problem
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Thread Starter
Racer
Joined: Feb 2017
Posts: 432
Likes: 188
From: powder springs georgia
Thanks for all the responses...I have only seen black smoke, but my neighbor said he saw blue...
Just the exhaust tips black........
Like i said before it runs fine and i guess that is what matters...Still got 2 more yrs. warrenty on power train...
I am useing 93 octain but from Kroger ??
Just the exhaust tips black........
Like i said before it runs fine and i guess that is what matters...Still got 2 more yrs. warrenty on power train...
I am useing 93 octain but from Kroger ??
Last edited by sanman55; Mar 22, 2020 at 09:29 AM.
Race Director
Joined: Jan 2014
Posts: 10,709
Likes: 7,101
From: Fulshear, TX
Although it's 93, Kroger is not a TopTier fuel. Oddly enough, I had some issues with their fuel in another car; no way I'd put it through a performance engine. Save your fuel points for your daily, wife's car, or use them at Shell.
You really want something like Exxon, Mobil, Chevron, Texaco, BP, Valero, Marathon, Sinclair, Shell, etc.
TopTier brands: https://www.toptiergas.com/licensed-brands/
You really want something like Exxon, Mobil, Chevron, Texaco, BP, Valero, Marathon, Sinclair, Shell, etc.
TopTier brands: https://www.toptiergas.com/licensed-brands/
Last edited by Kracka; Mar 22, 2020 at 09:29 AM.
Thread Starter
Racer
Joined: Feb 2017
Posts: 432
Likes: 188
From: powder springs georgia
Thanks....Upon further cking. the oil fill might be the issue...Its really hard to see...but after cking it cold a lot of times it seems the oil is on the wire about one quarter inch above the top mark....???
Will ck. with my dealer....Any other way to ck. oil level to be sure???
Will ck. with my dealer....Any other way to ck. oil level to be sure???
Race Director
Joined: Jan 2014
Posts: 10,709
Likes: 7,101
From: Fulshear, TX
Over-filled, but doesn't sound critically so. Can you post a picture of the dipstick laying on a white paper towel?
Just to confirm: your car is on a flat level surface?
Just to confirm: your car is on a flat level surface?
Last edited by Kracka; Mar 22, 2020 at 09:41 AM.
Thread Starter
Racer
Joined: Feb 2017
Posts: 432
Likes: 188
From: powder springs georgia
I tried to take a photo but no go..I can barely see it and its level...I might try it warm engine...this is a cold engine.
I did a lot of google but no one mentions OCCASIONAL smoke.....like once every 2 weeks or so....Others say that even a quart overfill is not too bad...I would be a lot more worried if it emitted all the time...Its like a cough once in a while...
Just do not know...I will talk to dealer again...I did just have a #1 spark plug replaced...it went dead after only 11,000 miles.. gave me an engine warning and it shook like hell.Guy says that rare but things happen...
thanks
I did a lot of google but no one mentions OCCASIONAL smoke.....like once every 2 weeks or so....Others say that even a quart overfill is not too bad...I would be a lot more worried if it emitted all the time...Its like a cough once in a while...
Just do not know...I will talk to dealer again...I did just have a #1 spark plug replaced...it went dead after only 11,000 miles.. gave me an engine warning and it shook like hell.Guy says that rare but things happen...
thanks
Last edited by sanman55; Mar 22, 2020 at 10:05 AM.
Cruising
Joined: Jul 2011
Posts: 11
Likes: 0
engine smoke
I have noticed a white smoke from my 14 with 5k miles. had for 2 months. After driving thru town at slower speed then on gas I get a white tan exhaust for a hew seconds. No waning lights.happened twice.
Safety Car
Joined: Dec 2012
Posts: 3,841
Likes: 1,856
From: St. Louis Metro East IL
Thanks....Upon further cking. the oil fill might be the issue...Its really hard to see...but after cking it cold a lot of times it seems the oil is on the wire about one quarter inch above the top mark....???
Will ck. with my dealer....Any other way to ck. oil level to be sure???
Will ck. with my dealer....Any other way to ck. oil level to be sure???
Never saw any smoke in 30K miles on my 2014 Z51 or 2019 GS. However, I do get on it occasionally after the engine is warmed up.
Ron
Thread Starter
Racer
Joined: Feb 2017
Posts: 432
Likes: 188
From: powder springs georgia
could be, mine would smoke after starting up but I just sold mine to the dealer so no more worries...Waiting for my 2021 convertable............................* *********************
Race Director
Joined: Apr 2007
Posts: 16,023
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From: Toronto, Canada
C7 of the Year - Unmodified Finalist 2021