ON CERTAIN VEHICLES WHEN THE ACCELERATOR IS OPERATED QUICKLY, A SMALL PIECE OF METAL MAY SEPARATE FROM A RETAINING COLLAR LOCATED IN THE INNER PART OF THE AUTOMATIC TRANSMISSION. THIS SMALL PIECE OF METAL MAY BECOME CAUGHT IN THE PARKING LOCK MECHANISM.
ON CERTAIN PASSENGER VEHICLES, THE IMPELLER INSIDE THE FUEL PUMP MAY HAVE BEEN IMPROPERLY MOLDED DUE TO A MANUFACTURING ERROR. ALCOHOL IN SOME FUELS MAY DEFORM THE IMPELLER AND CAUSE IT TO COME INTO CONTACT WITH THE PUMP HOUSING.