Whitish blue smoke.

Duramax_JP

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Jul 3, 2008
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I was sitting idleing at a stoplight today and noticed a whitish blue colored haze coming out of my exhaust. Is somethin wrong with my truck? I have heard of this happened before but im still not sure what it means. Any ideas on whats goin on? Also i may have out this in the wrong place. If i did mods please move it to the correct spot. Thanks

James
 

Duramax_JP

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Jul 3, 2008
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Well im not sure how blue it was now that i think of it. It was primarily white and a light haze
 

slowlmm

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Mar 2, 2008
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how cold out side was it when its starts getting in the low 30s and below they will smoke white simular to a gasser. thtats normal if it wasent cold out or aboove tht white is usally water from a head gasket or something.
 

03 D-max

Honorary "Tosser"
Apr 29, 2008
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any smoke or haze is usualy not a good thing unless it was burning water in the exhaust or something like that but if it did it after you had been driving it then it prolly isnt good:(
 

sillyboyrs4

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Aug 19, 2008
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mine looked and sounded normal to me today, just a little puff and cleared right up!!!

we might be doing a compression test on mine in the next few weeks, might as well do yours too if your worried. Are you anywhere near Florida:joker:
 
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Duramax_JP

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Jul 3, 2008
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mine looked and sounded normal to me today, just a little puff and cleared right up!!!

we might be doing a compression test on mine in the next few weeks, might as well do yours too if your worried. Are you anywhere near Florida:joker:

Hah nope, Texas. I hope my truck is fine, it only has 43,000 miles on it and im only runnin a 90 horse tune.
 

TrentNell

Finally underway !!!!!
Jul 7, 2008
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slc tuah
mine does this along with a slightly ruff idle when its below thirty degree's and i havnt plugged it in but i have a injector sticking i think . dont know on your lbz if its running smoothly just smoking , maybe post a video or picture of the smoke color .
 

Duramax_JP

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Jul 3, 2008
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mine does this along with a slightly ruff idle when its below thirty degree's and i havnt plugged it in but i have a injector sticking i think . dont know on your lbz if its running smoothly just smoking , maybe post a video or picture of the smoke color .

Now that you mention it its been kinda shakin the truck at idle and is alot more rumbly rather than smooth at idle. I guess i can make a video of it tomorow. Its not very noticeable but its enough to make me worried.
 

TrentNell

Finally underway !!!!!
Jul 7, 2008
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Now that you mention it its been kinda shakin the truck at idle and is alot more rumbly rather than smooth at idle. I guess i can make a video of it tomorow. Its not very noticeable but its enough to make me worried.

mine only does it for 20 secounds or so on cold start up and then runs perfect post the vid and im sure we can help .
 
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Duramax_JP

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mine only does it for 20 secounds or so on cold start up and then runs perfect post the vid and im sure we can help .

Ill post up a vid sometime tomorow evening when im free. I dont think it will do much good trying to make one tonight since its already dark.
 

SteveFord

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May 8, 2008
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Mine has done this before when it is cold out. After truck warms up it goes away for the most part. It did it when it was stock after I put the exhaust on it atleast that's when I noticed it. Check your balancing rates. Maybe it's just the fuel if it's winter fuel. Smell it.
 
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radvans

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Jun 4, 2007
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SoCal
Mine started going blue before 3 injectors were bad. I thought blue normally meant fuel in oil? It was in my case.