Removing the throttle body isn't difficult to clean it. If you DO go this route, then be sure you buy a gasket (or gasket set if applicable) for when you put it back together, otherwise you can have a vacuum leak at the seating surface, which will cause a lean condition in the engine, which will cause problems in the future. You can get some good carbon removing cleaner and go to it. Heavy carbon deposits in the throttle body will eventually cause part throttle hesitation and a "sticky" gas pedal, which is one of the reasons I asked if you had any of those symptoms.
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