2000 Jeep Wrangler Cruise Control Problems

I GOT MY 2000 JEEP WRANGLER SAHARA FROM PARENTS THEY BOUGHT IT NEW FROM DEALERSHIP. WHEN IT HIT ABOUT 150,000 MILES WHEN IN MOTION NO MATER HOW MUCH GAS IS IN IT, IT ACTS LIKE YOU HAVE RUN OUT . IT CUTS OUT, SLOWS DOWN, AND SOMETIMES WILL BACKFIRE THEN WILL GO AGAIN. SOMETIMES IF YOU TURN OFF THE KEY AND START IT AGAIN IT STOPS DOING IT,OTHER TIMES IT ONLY HELPS FOR A MILE THEN CUTS OUT AGAIN.I NOW HAVE 210,000 MILES ON IT, AND I NEVER KNOW WHEN IT WILL DO IT. I AM AT A LOSS CAN NOT FIGURE OUT WHAT IT IS CAUSING THE PROBLEM.I KNOW THE JEEP IS 16 YEARS OLD AND I HAVE HAD TO REPLACE A NUMBER OF PARTS ON IT AND THAT'S FINE I UNDERSTAND THAT'S NORMAL. I JUST CAN'T FIGURE OUT THE CUTTING OUT PART. ALSO WHEN ADDING GAS IT KICKS OFF THE PUMP LIKE IT FULL EVEN WHEN IT'S NOT (EVERY 4 TO 7 CENTS) SOMETIMES SPLASHING GAS BACK ON ME. THIS HAS BEEN GOING ON FOR 5 YEARS NOW.

DT: CONSUMER WAS WORKING ON THE VEHICLE, AND SPRAYED THE CARBURETOR WHEN THE CAR LUNGED FORWARD PINNING CONSUMER BETWEEN A WIRED SHELF AND FREEZER WHICH STOPPED THE JEEP BUT WAS DESTROYED. *TT *EH