This would be a unique case if there is actually enough gunk in the intake to cause the motor to limp like that all of a sudden. What was your boost level when you lost power, and did you maintain any boost afterward. You could have an issue with the turbo, or a boost leak somewhere, and it would be more along the lines of an 'all of the sudden it lost power' situation.

As far as that treatment, there is no way I'd have them run that through my motor. I don't know the chemicals used, but its something my dealership wanted to do on mine, and I said no. There is no reason to have that blown through your cylinders, and turbo. The reason they do it this way, is there is less labor involved in it, because you're not tearing apart the motor.

What I would do is have them remove and clean the intake and egr valve and cooler. That's the right way to do it, take the parts out, clean them properly, ensure they are clean, and re-assemble. Ensures that was the issue in the first place, and ensures everything is actually cleaned up completely. Since its already at the dealership, you are kinda tied here without towing the truck again.

 

I wasn't thrilled at that idea either. They told me that they could clean the EGR valve and that if it breaks down again because another chunk of carbon gets stuck in the valve not to call them screaming. They have since cleaned the valve and it runs and drives ok. I still have it there.

 

Right there is the reason dealerships have a bad reputation. Trying to force an owner to take that route, and guilt them into it.

If the truck drives now, I'd get it out of that dealership and find one that is a little more experienced with the 6.0L to look it over.

 

Exactly! That's what I was thinking of doing too. What was the reason they wanted to do it to your truck. Was it the same with an EGR issue? Are you familiar with the delete kits?

 

They wanted to do it around the same time as the HG's, preventative they claimed. I made it clear on the work order it was not to occur.

Are for EGR delete kits, I'm not a supporter of. Mainly its federally required emissions equipment and I'm not going to risk the fines associated with a deletion. If you intend to take the delete route, I'd recommend the block unit from BPD, same function but it looks 100% stock. As long as you do not have the latest flash from Ford a CEL won't be an issue.

I'm going with the BPD upgraded EGR cooler the next time my oil cooler requires a rebuild.

 

You're not going to clean out the intake manifold with some magic chemical. You need to remove the intake and either pressure wash it or have a rad shop hot tank it.