2013 F-150 Ecoboost 3.5 problems

Thanks for the replies, I've gone to two different dealerships with the same results. They can't find anything wrong with it. Says more than likely its a bad throttle assembly but without the check engine light staying on they can't say for sure. I'll know today, I'm going to have it replaced. One dealer told me that they had one in there doing the same thing and it turned out to be the spark plugs. Since my truck is out of warranty I said well maybe I should start with that. I then asked how much to switch out the spark plugs and it was almost two hundred to do so. It's crazy, not happy with it at all.
I will tell you the results later today.