White Fog from 18 wheeler…

[GeoHorn]

I was helping a little ol’ lady from church get her car washed… and just as I was about to return it to her… Accelerating away from a traffic-light… was an 18 wheeler with dual stacks… emitting a HUGE CLOUD of White Smoke… so BIG that it became a Huge Cloud of FOG…. and coated all of us sitting next to him with a fine mist!
I had to drive thru the car wash again.

I”ve never seen such a thing.… I”ve seen an occasional white “puff” of smoke from a diesel…but This was amazing… It literally created a cloud of FOG which enveloped the entire city block!

He drove on away onto Hwy 281 northbound from Burnet, Tx.

Sooo… what causes that ?? and what would you do about that if you saw it..??

 

[beckmurph]

Blown turbo would be my guess.

 

[North Idaho Wolfman]

He's got a bad tune on it.
He's just dumping fuel.
There is a rat line for Texas Emissions rules violations.

 

[mcmxi]

I was helping a little ol’ lady from church get her car washed… and just as I was about to return it to her… Accelerating away from a traffic-light… was an 18 wheeler with dual stacks… emitting a HUGE CLOUD of White Smoke… so BIG that it became a Huge Cloud of FOG…. and coated all of us sitting next to him with a fine mist!
I had to drive thru the car wash again.

I”ve never seen such a thing.… I”ve seen an occasional white “puff” of smoke from a diesel…but This was amazing… It literally created a cloud of FOG which enveloped the entire city block!

He drove on away onto Hwy 281 northbound from Burnet, Tx.

Sooo… what causes that ?? and what would you do about that if you saw it..??

Wouldn't white smoke indicate water in the fuel or water in the engine oil? Could be a head gasket issue. I have a chip and programmer and if I get on it I can blow lots of black, sooty smoke!

 

[Fordtech86]

Wouldn't white smoke indicate water in the fuel or water in the engine oil? Could be a head gasket issue. I have a chip and programmer and if I get on it I can blow lots of black, sooty smoke!

 

[BigG]

One of my Dura Maxes started blowing white "smoke". It ended up being a bad injector.

 

[North Idaho Wolfman]

Wouldn't white smoke indicate water in the fuel or water in the engine oil? Could be a head gasket issue. I have a chip and programmer and if I get on it I can blow lots of black, sooty smoke!

Black smoke if it's burning the fuel, white smoke if it's not.
If it was white smoke out of one stack I would think failed injector or water/ coolant issue.

There is one other possibility is that it's got a DEF issue, or if it picked that moment to go into a regen, all of which can cause white smoke.

 

[mcmxi]

Black smoke if it's burning the fuel, white smoke if it's not.
If it was white smoke out of one stack I would think failed injector or water/ coolant issue.

There is one other possibility is that it's got a DEF issue, or if it picked that moment to go into a regen, all of which can cause white smoke.

Interesting. I have two glow plugs that need replacing and it takes a while to start the truck when it's below 50F. When I eventually get the truck to start I often see lots of white smoke coming out of the exhaust which I figured was unburned fuel.

 

[North Idaho Wolfman]

Interesting. I have two glow plugs that need replacing and it takes a while to start the truck when it's below 50F. When I eventually get the truck to start I often see lots of white smoke coming out of the exhaust which I figured was unburned fuel.

Bingo, that is exactly what it is. unburnt or poorly burnt fuel.

 

[GeoHorn]

It was Both Stacks… and it was not just momentary…it was persistent. I”ve seen neighborhood Mosquito-Fogging trucks which couldn’t come NEAR to what this 18-wheeler emitted. It truly enveloped the entire intersection and continued down the highway developing into a large cloud of Fog. Pretty amazing and disturbing…. it was almost traffic-stopping.

 

[CGMKCM]

https://www.xtremediesel.com/blog/2021/04/06/diesel-smoke-diagnosis-xdp-tech-talk/

 

[lugbolt]

failed turbocharger is the likely culprit, although there are other possibilities.

AAA Cooper had one do that a number of years ago. I just had a car painted, was out in it and got behind cooper, dumped oil all over the new paint. I knew the driver and asked him the next week when he dropped our stock order off and he said that the mechanics told him that the turbo failed.