NHTSA Complaint #10054978 — 2003 JEEP LAREDO

I HAVE A 2003 JEEP GRAND CHEROKEE THAT MISFIRES REALLY BAD WHEN CERTAIN CONDITIONS EXIST. I KNOW THAT IF I ACCELERATE GOING UP A STEEP HILL - THE MOTOR MISFIRES SO BAD THAT IT IS LIKE A BUCKING HORSE. *JB THE DEALER CALLED MY 1ST JEEP A LEMON AND REPLACED IT, AFTER NUMEROUS ATTEMPTS TO FIX THE PROBLEM, AND NOW THE 2ND JEEP DOES THE SAME EXACT THING. MY DEALERSHIP TELLS ME THAT JEEP HOT LINE DOESN'T HAVE ANY REPORTS ABOUT THIS PROBLEM FROM ANYONE ELSE. MY DEALERSHIP IS GOING TO PUT A CO-PILOT ON MY JEEP TO GET BETTER COMPUTER CODES. ALL THEY KNOW IS THAT THERE IS A MISFIRE. THE 1ST JEEP DID THIS 3 TIMES BEGINNING AT 3,000 MILES UNTIL 10,000 MILES WHEN I GOT SWAPPED IT OUT FOR A DIFFERENT JEEP. THIS 2ND JEEP WAS BRAND NEW AS WELL AND AT 23,000 MILES AT THE SAME EXACT LOCATION AS ONE OF THE PREVIOUS MISFIRES, IT STARTED MISFIRING. MOST RECENTLY I WAS GOING 55 MPH ABOUT 100 MILES FROM HOME ON MY WAY TO A RELATIVE'S HOUSE. THE FIRST JEEP DID THE EXACT SAME THING AT THE SAME PLACE. THE CAR HAD DIFFERENT TYPES OF GAS IN IT AT VARIOUS MISFIRES SO I DON'T THINK THE PROBLEM IS FUEL RELATED. I WAS GOING UP A HILL ON THE INTERSTATE TRYING TO PASS A SEMI AND WHEN IT KICKED INTO PASSING GEAR -BINGO, IT STARTED MISFIRING SO BAD I HAD TO PULL OVER. AFTER TURNING OFF THE JEEP FOR ABOUT 15 MINUTES, THE JEEP STARTED AND RAN SMOOTHLY BUT THE CHECK ENGINE LIGHT WAS ON. IT DOES NOT MATTER IF IT IS COLD OR WARM OUT. IT DOES NOT MATTER IF I HAVE GONE 1 MILE OR 100 MILES - THE ONLY CONSISTENT THING THAT I CAN FIND IS THAT BOTH VEHICLES ARE 2003 JEEP GRAND CHEROKEES AND THAT I WAS EITHER ACCELERATING OR ON A HIGHWAY AT HIGHWAY SPEEDS. *JB