How to unstuck accelerator pedal?

Hi Patrick and thanks for your reply. It sounds from you that a stuck throttle valve or butterfly is the culprit. As for the coolant is full as per the recovery tank. The intake boot removal is at the end closest to the rear of the engine bay right? And not at the air filter housing. Is the metal clip at that end of the air intake boot reusable? Am I able to reach and push the butterfly and physically clean and spray with the Chemtool cleaner? Also, I would think NOT to use carb cleaner, due to the lubricant or oil in it that may interfere and coat the sensors? Will this cleaning and physically moving the butterfly allow the accelerator pedal to be free also? Because the accel. pedal feels really stuck, even after applying some mild force. Hopefully, this will free up the gas pedal also. Thank you Patrick.