Join Date: Apr 2015
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2015 6.7 shuddering, loss of power.
So I am new to the forum and diesels. I recently bought a 2015 F350 with the 6.7 for work. It is 5 months old with 5300 miles. No modifications other than aesthetic ones, toolbox, etc. I always fill up at chevron.
So a month or so ago I noticed a shudder and shaking while trying to accelerate going about 45mph. Not a hard acceleration, just while changing lanes. It was almost like it was starving for fuel.
I have noticed this several times since. Most recently, I could not even keep speed while going up a hill due to an almost total loss of power. It seems the truck will keep speed on a flat, but if any power is needed, I am out of luck. This instance, I know I was in regen, however I cannot be sure about all instances. I have a brother in law that knows much more than I about diesels, and he says this is fairly common with newer trucks while in regen, so maybe that is the issue. If this is the case, it seems to me that I paid a lot for a truck that can only deliver promised performance.....sometimes.
I took it into the dealership (LHM-Sandy for those in the area). They have had it two days and thus far cannot duplicate the problem, though the tech said it feels "generally sluggish". From searches on this forum, it looks like there are people with similar issues in 2011-2012s, but I would hope Ford would have developed a resolution by now.
Are people still having this problem? Is there a service bulletin that I can give to the tech? Any help would be appreciated.
*Sorry for the long winded post, I wanted to give as much info as possible.