THE TRANSMISSION IN MY 2007 JEEP GRAND CHEROKEE LAREDO STARTED CLUNKING LOUDLY WHEN I SHIFTED FROM REVERSE INTO DRIVE. THE SERVICE ENGINE LIGHT WILL COME ON AFTER THIS OCCURS. THE PROBLEM WAS INTERMITTENT, THEN, ONE DAY I WAS SITTING AT A RED LIGHT. WHEN IT TURNED GREEN, I STEPPED ON THE GAS PEDAL AND THE VEHICLE WOULD NOT MOVE. IT ACTED AS IF WAS IN PARK. I SHIFTED IT TO PARK AND BACK INTO DRIVE SEVERAL TIMES AND SUDDENLY THE VEHICLE SLAMMED INTO GEAR LUNGED FORWARD INTO TRAFFIC. I REPORTED THIS PROBLEM TO MY DEALERSHIP (THE VEHICLE IS UNDER WARRANTY) WHO TOLD ME NO CODES REGISTERED IN RELATION TO THE SERVICE ENGINE LIGHT HAVING BEEN ON AND THAT THEY COULD NOT DUPLICATE THE PROBLEM. THEY RETURNED THE VEHICLE TO ME AND TWO DAYS LATER THE SAME TRANSMISSION CLUNKING BEGAN AND THE SERVICE ENGINE LIGHT CAME ON. I LEFT A RED LIGHT TODAY AND THE VEHICLE WOULD NOT SHIFT FROM FIRST GEAR INTO SECOND. FINALLY, IT SHIFTED, SLAMMING INTO GEAR, WITH A LOUD, HARD CLUNK THAT SHOT MY VEHICLE SEVERAL FEET AHEAD. I ALMOST LOST CONTROL OF THE VEHICLE AND WOULD HAVE HAD AN ACCIDENT IF A CAR HAD BEEN AHEAD OF ME. IT'S BACK AT THE DEALERSHIP WHO CLAIMS THERE'S NOTHING WRONG. THE CAR HAS ONLY 21,000 MILES ON IT. CLEARLY, THERE IS SOMETHING WRONG AND I FEAR FOR MY SAFETY AND CANNOT SIMPLY GO BUY ANOTHER VEHICLE. *TR
