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If you want to clean the throttle body yourself either use a little carb cleaner or brake cleaner on a rag. With the engine off open the throttle body by hand and use cleaner on a rag to remove buildup from the throttle body bore and edges of the blade. You won't want to spray any cleaner directly on the throttle body - spraying a cleaner into it can damage it in a couple of ways. It can remove the protective coatings from the blade and bore, and the cleaner can seep into the internals of the electronic throttle body and ruin it.
This is my first time in one of the late model car/truck. My hay day was back in the 70's. I'm going to look up some kind of unit/parts back down to have a little better ideal of what I'm going to find and how fare I need to take the trucks intake apart in order to clean it by hand.