Why would a 1998 Pontiac Grand Am drive all the way down a flat road on its own without someone touching the gas in Drive or Reverse?
well hmm i know what is if it does this ok when you start it
does the motor race at all? or does it when you put it into dr or
RV jerk into gear ??? my answer would be 1 of two things your idle
is set to high or your linkage may be sticking so check that first