Smoking from takeoff

[superdutyman97]

I haven't ruled out a turbo issue but a lot it has cleared up with oil treatment and running the hell out of it. There's a sensor related to exhaust back pressure that I believe may br the culprit. Got one donated by a buddy that does fleet maintenance to switch out and see what happens. Just haven't had the time to do it yet. 60 hours a week at the kenworth plant takes its toll lol

 

[superdutyman97]

Bump- here's an update: the smoking actually cleared up for a while but it's back and now it's doing it at idle also. Only change is I added a tuner with Matt's tunes and it's running perfect but smokes a bunch. I'm being told it could be my charger on its way out, has anybody had this problem??? The only notable thing I can add is it only does this crap when the weather gets cold here so far. Any help would be great

 

[superdutyman97]

The three issues that I'm looking at right now are: Possible egr problem, injector issues, or a turbo related problem. If it's the egr I'm going for a delete, if its an injector I'll replace it or buy 155's, but I'm unsure about what to do about a turbo issue. Are the seals replaceable, or could it be dumping oil directly into the exhaust and letting the charger run dry? The smoke is whitish grey, and smells of raw fuel but not like the smell I was used to out of my 7.3 with bad injector seals. It runs great but every now and again it'll stumble and miss a little. It done it a few times on a road trip from gatlinburg, tn back to the house and fresh fuel seemed to clear that up, but occasionally under WOT it'll hesitate on top end sometimes. I know it's a bunch and probably erratic but I didn't want to miss anything. I think I covered it all this time. Also; I tuned it back to stock and it made no difference in the density or amount of smoke. The only other thing that comes to mind is it only does this crap when it gets down in the 30's or colder. Anything y'all can offer me would be appreciated.

 

[Lassie]

Since you have lingering smoke, it's going to be fuel or oil. Turbo issues could cause both.

1. If your turbo vanes are sticking, you could be overfueling causing smoke.
2. If your main seal is blown in the turbo, oil could be leaking into exhaust and smoking. This seal can leak inside or outside.
3. If a turbo boot has blown a hole, it will cause smoke under load.
3. An injector could be overfueling or FICM causing it to overfuel.

Since you have an EBP code, start there. The turbo vanes could be commanded to operate incorrectly due to that sensor. Some say that the 6.0 startegy doesnt use the EBP, but correcting it has fixed many trucks.
The EBP sensing tube is connected to the driver side exhaust manifold and is routed to the front of the engine. The sensor is mounted just under the fuel pressure regulator (fuel filter housing). Remove the tube and make sure its clean to start. If its clean, change the sensor.

To check the turbo, pull the intake tube (from the filter) and the exhaust downpipe from the turbo and look for excessive oil. You may even see oil on the outside of the turbo body, between the compressor and turbine halves. If you decide it is the seal, buy a turbo rebuild kit. This is a very easy process and brings the turbo back to new function. (Unless there is wheel damage)

If its not one of the above, its time to check FICM voltage and power balance the injectors.

Get in there and get familiar...6.0 engines are like needy women...they'll create lots of drama to keep their man on top of em.

Good luck!

 

[superdutyman97]

Went out a little bit ago and fired it up @ around 50 degrees, no smoke/ maybe a very light haze till it warmed up. Let it warm to full operating temps and took it down the road and back and let it idle for a little longer. Still no smoke but a slight hesitation at WOT. Really thinking injector(s) at the moment. Need to have the ficm tested and rule it out, but the turbo is still a lingering thought. Going to pull the intake and downpipe before I leave for work and see what I find just as a precaution here shortly. All of my smoking issues were at sub 40 degrees as of right now.

 

[Blacksmokin22]

Sounds like a injector problem. Need to pull a power balance and see which injector is over fueling. Check fuel pressure. And ficm voltage. If it has a blue tint to smoke don't worry bout egr or turbo.

 

[superdutyman97]

It has a light blue tint to it but I'm getting concerned that if I don't get it taken care of something major is gonna end up trashed. How do I test for ficm voltage? And how do I check the power balance? I'm gonna pull the downpipe Saturday morning unless I get to it earlier than that and check for oil just as a precaution. Also it seems substantially worse when the weather is cold and damp. It rained yesterday and dipped down low into the 40's or high 30's and really made it bad for a while. By the time I got home (35 min.) it had cleared up completely.

 

[Chucky1313]

I have the same problem I did egr delete and headstuds with factory gaskets and still smoked then changed the turbo and it stopped for 2 months and is back again. Was also told might be a injector becomes only when cold will do it once wormed up it stops smoking so here goes more money imma about to buy a dodge or a Chevy......... Yeah right!!!! Imma swop the injectors ill keep you posted

 

[BlueOvalDiesel]

I just got a 04 completley stock 107k. It smokes when first drove for about a mile then its warm enough to clear up. Its been low 30's here lately. It disapates quickly fairly white smoke. Doesn't seem to use any coolant. I just thought it was because it was cold and its very sluggish when cold but now after some reading im a little worried. Any thoughts on this?

 

[superdutyman97]

Just swapped out the #1 injector because of a misfire issue and it cleared up some of the haze. I'm thinking I may have another injector going bad but the egr delete is headed for the front door as of Friday. It may not help but bits one of those things that'll help out eventually.