Smoking during cold idle?

[whitelmmmax]

i think its the fuel, biodiesel blend

X2

 

[paint94979]

i dont run biodiesel... just shitty CA #2

 

[LBZrcks]

i dont run biodiesel... just shitty CA #2

What's so bad about it? We have a higher Cetane# compared to other states

 

[GMC_2002_Dmax]

incomplete combustion, advance pilot timing at idle or raise pilot quantity at idle a little bit.

Or see where the add-on tables come into play for timing and fuel pressure in relation to ECT.




Just saw your other post.........that sucks !!!!

 

[04D_MAX]

its all got up to 5% bio blend here in ga, check the pump next time you fill up may be different in other states

 

[Harbin_22]

incomplete combustion, advance pilot timing at idle or raise pilot quantity at idle a little bit.

Or see where the add-on tables come into play for timing and fuel pressure in relation to ECT.

When the motor goes back together, if is still smoking might look into, thanks

 

[JDPlowboy]

You all are putting too much thought into it lol... Every diesel I've ever been around has always blue hazed in the winter till warmed up.


Sold all my 6.6's and bout a 97 6.5... Life is good haha

 

[Andrew]

My lbz has always hazed at a idle even warm when i first got it an she was bone stock

 

[NC-smokinlmm]

Mines does the same thing, I don't worry about it. Diesels haze when cold it's just the nature of the beast. That's one of the reassons why the manufacturers added egr and intake air grid heaters...

 

[TLyons90]

Love when threads get re commented on after over a year of being dead :roflmao:

 

[JDPlowboy]

Yep, cold air, cold fuel, cold cyl walls. Start a big block deere in the cold and she will blow white and gray till it builds some heat, then starts blue haze till it gets to operating temp.


1997 chevy 6.5 turboo diesel

 

[mike diesel]

30% nozzles in my lly on my 602 horse tune cold start at 25 degrees i get zero haze and smells like normal diesel exhaust.

 

[Harbin_22]

You all are putting too much thought into it lol... Every diesel I've ever been around has always blue hazed in the winter till warmed up.


Sold all my 6.6's and bout a 97 6.5... Life is good haha

Well I definitely hard short rods that were causing the smoke at idle. One exited the block and when the new motor went in, it quit smoking.

 

[workin' diesel]

I have found out that my truck is actually kinda fun to drive if you just ignore all sounds, types of smoke and fluid puddles. Mine does a little of the first two and I used to get all worried now I just check once in awhile.

 

[NC-smokinlmm]

Well I definitely hard short rods that were causing the smoke at idle. One exited the block and when the new motor went in, it quit smoking.

That sucks. But you were pushing the hell out of yours, mine is still running stock fuel. So I doubt that is the cause of the little bit mine hazes when cold, yours was pouring some smoke. I would have been suspect as well...

 

[brandon06dmax]

Is it just cold start blow by like it needs to get to operateing temp before it will stop

 

[Devon]

Mine hazes slightly blue when it's real cold out when she is warming up. Probably normal. Every duramax I've owns has alittle but when it's freezing out. Only for a few minutes upon start up really.


Sent from my iPhone using Tapatalk

 

[High Voltage]

block is cold, fuel is cold. Heat helps combustion. Without some heat its not going to get complete combustion. Tony is Right, you can try to retune for this or put it back to stock if you cant deal with it.

 

[ThebigGids]

block is cold, fuel is cold. Heat helps combustion. Without some heat its not going to get complete combustion. Tony is Right, you can try to retune for this or put it back to stock if you cant deal with it.

Thanks for telling us everything we already knew. Now if you had read through each post...this thread is over a year old and the ops motor threw a rod. His new motor doesn't have issues...

But thanks for playing.

 

[Duramaxduner]

Mine also does that when it is cold for a min but then it goes away. I wouldn't worry about it. My whole motor is stock with stock injectors.