Burnoff at CT4VBW Engine Start?

[Tabman]

Hello, All.

Is anyone else experiencing significant burnoff at engine start??

It seems to happen if I started the vehicle and quickly turn it off (for example, if I started it to move it quickly to another spot); which I know is a no-no. The next start produces enough white smoke to fill a small garage.

Thought it was cold weather months and condensation, but happening at 90 degrees outside caused me to seek assistance from the gurus here.

Coolant is fine, no overheating, smoke stops within 5 seconds of turning it over. No standing pools or stain evidence of any fluid leaks.

Never seen this before - any thoughts or suggestions, please? Overreacting?

Thank you.

 

[Joespenard]

What is the smell ? Like the boilers first light up after a long non-usage ? or oil, coolant ,automotive stuff. ??

 

[CaptHugemeat]

I had something very similar with my '16 ATS-V. Would fill up my big garage with white smoke. Dealer could never figure it out. Finally I found some service bulletin regarding some kind of contamination that got into a batch of heads that would cause a lot of smoke. Ended up having to replace my motor completely.

Now before you freak out, it was allegedly limited to '16 and '17MY and has since been corrected. However, look through the following thread because this is where I first saw it all documented and I think the service bulletin is in this thread too.

A Little-V Blog: The ATS-V purchase and ownership experience

Back in the middle of November '14, I wrote an article for the V-Net about the technical side of the coming ATS-V. I got about a third of the way into researching that story and had one of those "come to Jesus moments" where I was, like...damn, this is going to be one f'ing bad-ass of an...

www.cadillacvnet.com

 

[Tabman]

What is the smell ? Like the boilers first light up after a long non-usage ? or oil, coolant ,automotive stuff. ??

Smells like oil burnoff... but that wouldn't stop if it was right?

 

[Tabman]

I had something very similar with my '16 ATS-V. Would fill up my big garage with white smoke. Dealer could never figure it out. Finally I found some service bulletin regarding some kind of contamination that got into a batch of heads that would cause a lot of smoke. Ended up having to replace my motor completely.

Now before you freak out, it was allegedly limited to '16 and '17MY and has since been corrected. However, look through the following thread because this is where I first saw it all documented and I think the service bulletin is in this thread too.

A Little-V Blog: The ATS-V purchase and ownership experience

Back in the middle of November '14, I wrote an article for the V-Net about the technical side of the coming ATS-V. I got about a third of the way into researching that story and had one of those "come to Jesus moments" where I was, like...damn, this is going to be one f'ing bad-ass of an...

www.cadillacvnet.com

Thank you for the lead... I'll do some research. Much appreciated.

 

[Joespenard]

Thank you for the lead... I'll do some research. Much appreciated.

What was the determination / origin of ur burnoff - startup fumes?