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2016 High Country SMOKING, Shame on GM Switching to Ford

gilles81

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scott19677 Senior Enthusiast

scott19677

Posted
Posted

Something isn't passing the smell test here. No pun intended. Go email the vid to Mary Barra, contact GM and open a case number on it, then go see the general manager at the dealership. If that doesn't get you anywhere just trade it in on a good day. Yeah you will loose your ass but life's too short to be putting up with that crap. And if you park that furnace in your garage life might really be too short.

tenscourts Enthusiast

tenscourts

Posted
Posted

I have a 2016 LTZ 5.3 and we recently had some really cold weather. Mine produced a lot of what I will call visible exhaust. So much that I didn't like walking near the back of the truck. I have a carport so no issues with it getting in the house but it was bad enough it prompted me to consider some kind of ventilation should I close in the carport. If I had remote started it in a garage I can see how it would have fogged up the entire garage. I wondered if an engine block heater would help but I found out they don't kick in above 0 degrees and we don't get that cold here.

 

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ralph.townsend.iii Enthusiast

ralph.townsend.iii

Posted
Posted

I would definitely try to determine if it is oil or gas and then see if you can figure out how to reproduce the issue. If it is oil the will it only do it when parked at a certain angle?

 

They can't tell you this but I'm sure they don't know what to do and hope the issue either gets worse or goes away.

 

 

 

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gilles81 Enthusiast

gilles81

Posted
  • Author
Posted

My wife works for a law firm so we might look into that if they don't do anything... I should not have to lose thousands of dollars to unload this truck cause they cant find or fix the issue... I would even step down a model if it meant not losing my ass on it and i could stay with GM. I really enjoy the the tuck but as other have said should not have to keep it outside due to this issue if i was told that is normal when i bought it i simply would not have bought such a nice model to keep outside. If it was normal can you imagine one starting on their lot and trying to tell customers nothing to see here that's normal... come on .

'17 Sierra Enthusiast

'17 Sierra

Posted
Posted

I have a 2016 LTZ 5.3 and we recently had some really cold weather. Mine produced a lot of what I will call visible exhaust. So much that I didn't like walking near the back of the truck. I have a carport so no issues with it getting in the house but it was bad enough it prompted me to consider some kind of ventilation should I close in the carport. If I had remote started it in a garage I can see how it would have fogged up the entire garage. I wondered if an engine block heater would help but I found out they don't kick in above 0 degrees and we don't get that cold here.

 

Sent from my Pixel XL using Tapatalk. My build thread: http://www.gm-trucks.com/forums/topic/192614-tenscourts-2016-ltzz71-ccsb-4wd-silverado/

Sounds like what you're seeing there is vapor from condensation in the exhaust system and visible only in cold weather. It will smell only like exhaust; not oil or fuel.

gilles81 Enthusiast

gilles81

Posted
  • Author
Posted

17 sierra if you read above this has happened after being driven and parked for only 10 min on a 85 degree afternoon in july.... It also happened last month when it was like 5 degrees out one morning its very random... Aslo Vapor evaps alot faster then this fog sticks around usually.

tenscourts Enthusiast

tenscourts

Posted
Posted

Sounds like what you're seeing there is vapor from condensation in the exhaust system and visible only in cold weather. It will smell only like exhaust; not oil or fuel.

Just reading back through and I'm not seeing where he said what it smelled like. I see other people comment but not the OP unless I missed it. I'm also curious of the temperature at the time of the videos.

 

Sent from my Pixel XL using Tapatalk. My build thread: http://www.gm-trucks.com/forums/topic/192614-tenscourts-2016-ltzz71-ccsb-4wd-silverado/

Horacio Enthusiast

Horacio

Posted
Posted

It sure wouldn't hurt GM to put an oil catch can on these motors. I've pulled out a significant amount of oil that otherwise would have made it into the intake. I have to wonder if this is part of your problem.

'17 Sierra Enthusiast

'17 Sierra

Posted
Posted

17 sierra if you read above this has happened after being driven and parked for only 10 min on a 85 degree afternoon in july.... It also happened last month when it was like 5 degrees out one morning its very random... Aslo Vapor evaps alot faster then this fog sticks around usually.

 

Just reading back through and I'm not seeing where he said what it smelled like. I see other people comment but not the OP unless I missed it. I'm also curious of the temperature at the time of the videos.

Sent from my Pixel XL using Tapatalk. My build thread: http://www.gm-trucks.com/forums/topic/192614-tenscourts-2016-ltzz71-ccsb-4wd-silverado/

I wasn't quoting the OP, I was quoting "tenscourts" who said he started his truck in cold weather.
diyer2 Senior Enthusiast

diyer2

Posted
Posted

I just thought

Doesn't use oil?

Coolant either?

Then must be fuel, right.

gilles81 Enthusiast

gilles81

Posted
  • Author
Posted

Yea it's fuel. The dual pulse injection dumps extra fuel to reduce heating time for the catalytic system. But I think it's dumping way to much fuel to make so much smoke. They say during this process the computer will block out any check engine codes is why there is no code and it's totally normal just deal with it.

pickmeup Enthusiast

pickmeup

Posted
Posted

looks like white condensation vapor. Its either weather related or head gaskets . Simple pressure test by dealer can confirm if head gaskets are o'k or not.


looks like white condensation vapor. Its either weather related or head gaskets . Simple pressure test by dealer can confirm if head gaskets are o'k or not.

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