Whenever Im at a stop light my engine always revs up by itself and if i don't have my foot on the break all the way it will move forward. Also, today while driving, I tapped on my breaks going down the road and all of a sudden all the lights came on in the dash board, the truck sputtered and then died. It did crank back up and I continued driving. So is the first part something to do with the transmission? And the truck stalling out, what is that from?