1986 FORD THUNDERBIRD Vehicle Speed Control Problems

I HAVE THREE SEPARATE INCIDENCES. FIRST OCCURRING IN 1997 WHILE TAKING MY GRANDSON TO HIGH SCHOOL: WHILE COMPLETING THE TURN INTO THE PARKING LOT AT HIS SCHOOL, MY 1986 THUNDERBIRD SUDDENLY SURGED AS IF I HAD FULLY PRESSED THE ACCELERATOR TO THE FLOOR. FORTUNATELY, I WAS FINALLY ABLE TO REGAIN CONTROL AND NEITHER OF US WERE INJURED NOR WAS THERE ANY PROPERTY DAMAGE. INCEDENT#2- WHILE RETURNING HOME FROM SHOPPING, I WAS DRIVING IN THE LANE CLOSEST TO THE CURB ON A 4 LANE STREET WHEN SUDDENLY, AGAIN, MY CAR ACCELERATED AND PULLED TO THE RIGHT WHERE I JUST BARELY GLANCED OFF A SMALL STATIONERY POLL THAT WAS POSITIONED BASICALLY ON THE SIDEWALK. AGAIN, THANK GOD, NO ONE WAS HURT AND THERE WAS NO PROPERTY DAMAGE. FINAL INCEDENT #3: NOT SO LUCKY THIS TIME. I WAS GOING THROUGH THE MCDONALD'S DRIVE-THRU, AFTER PLACING MY ORDER, MY CAR SUDDENLY TAKES OFF AGAIN,...

WHEN THE OWNER WARMS THE CAR, HE SHIFTS THE GEAR TO DRIVE AND THE CAR STALLS. HE STARTS THE CAR AGAIN, SHIFTS TO DRIVE AND THE CAR STALLS WHEN HE COMES TO A COMPLETE STOP. THE DRIVER WAS IN AN CRASH BUT DID NOT DESCRIBE IT.