2008 Jeep Grand Cherokee

WIFE TRAVELING WITH SON ON FWY AT LEGAL SPEED OF 70 MPH W/CRUISE CONTROL ON, CAR SUDDENLY DECELERATED CAUSING A VIOLENT MANEUVER FORCING CAR INTO NEIGHBORING LANE AND ALMOST CRASHING. SHE STATED IT WAS AS IF IT SUDDENLY DOWNSHIFTED INTO LOWEST GEAR AND BRAKES APPLIED FORCEFULLY. REGAINING CONTROL SHE DEACTIVATED THE CRUISE CONTROL AND PROCEEDED TO DESTINATION AT 50 MPH. TOOK TO DEALERSHIP IN DAVIS WHERE IT WAS DIAGNOSED AS CATASTROPHIC FAILURE OF THE TRANSFER CASE WHICH WAS THEN REPLACED AT THE COST OF $2842.75. SHE RETRIEVED CAR TWO DAYS LATER AND PROCEEDED TO DRIVE BACK HOME (DISTANCE IS @ 178 MI ONE WAY). CAR REPEATED SUDDEN DECELERATION UPON ENTERING THE FWY AND GETTING UP TO SPEED. CONTINUED HOME DUE TO MEDICAL APPOINTMENTS TO KEEP. KEPT CRUISE CONTROL OFF BUT CALLED DEALERSHIP TO REPORT THAT REPLACING THE TRANSFER CASE DID NOT SOLVE THE PROBLEM. I PULLED CODES UPON HER ARRIVING HOME AND FOUND ONLY CODE 0430 (CATALYST SYSTEM EFFICIENCY BELOW THRESHOLD [BANK 2] INDICATING THE CONVERTER NOT WORKING TO SPECS. TODAY SHE WAS RETURNING TO DAVIS TO VISIT WITH GRANDCHILDREN AND EXPERIENCED THE SAME SITUATION. AT 70 MPH CAR SUDDENLY DECELERATED RAPIDLY (AS IF BRAKES WERE APPLIED FORCEFULLY) AND CAUSED HER TO ABRUPTLY MOVE INTO THE LANE TO HER LEFT. SHE REGAINED CONTROL AND CONTINUED ON AT 50 MPH. THE DEALERSHIP INFORMED HER NO MECHANICS WOULD BE AVAILABLE UNTIL MONDAY BUT AS SHE HAS A FLIGHT OUT OF LAX TO CATCH EARLY MONDAY A.M. SHE DECIDED TO CONTINUE ON TO L.A. WITHOUT USING THE CRUISE CONTROL AND PROCEEDING AT SLOWER SPEED. THE POWER STEERING PUMP WAS REPLACED ON 4/15/2013 AT DEALERSHIPS RECOMMENDATION DUE TO A LEAK AND THE TRANSMISSION WAS SERVICED IN ADDITION TO HAVING NEW VALVE COVER AND GASKET PUT ON. SPARK PLUGS REPLACED, THROTTLE BODY AND COMBUSTION CHAMBERS CLEANED AND PCV VALVE REPLACED. INTERNET RESEARCH INDICATES THIS IS A REPEATED PROBLEM WITH THE JEEP GRAND CHEROKEE

I STARTED THE JEEP AND TRAVELED NORMALLY FOR ABOUT A THIRD OF A MILE ON LOCAL STREETS. THE PROBLEM STARTED WHEN I TURNED ONTO A COLLECTOR STREET FROM A LOCAL STREET APPLYING FULL THROTTLE. WHEN I LIFTED MY FOOT OFF THE THROTTLE PEDAL THE JEEP KEPT ACCELERATING. THE ELECTRONIC THROTTLE CONTROL WARNING LIGHT WENT ON. I STOPPED THE CAR BY APPLYING THE BRAKE AND PUTTING THE TRANSMISSION IN NEUTRAL. THE ENGINE CONTINUED TO REV AT ABOUT 4000 RPM WITH THE JEEP STOPPED. I TURNED OFF THE JEEP AND CHECKED THE POSITION OF THE CARPET PROTECTOR TO MAKE SURE IT WAS NOT INTERFERING WITH THE ACCELERATOR. IT WAS NOT IN A POSITION WHERE IT COULD OVERLAP THE THROTTLE. I ALSO CHECKED THE ACCELERATOR PEDAL AND FOUND IT OPERATING NORMALLY IN TERMS OF POSITION AND ACTION. I TURNED THE ENGINE BACK ON AND THE JEEP REACTED NORMALLY FOR THE REMAINDER OF THE TRIP. DEALER NOT ABLE TO REPLICATED BUT REPORTED ERROR MESSAGE THAT BOTH BRAKES AND ACCELERATOR WERE BOTH DEPRESSED. ALSO REPORTED THAT CARPET WAS NOT INVOLVED. *TR *JS

THERE ARE TWO MAIN ISSUES: STALLING AND NO START. STALLING ISSUE - VEHICLE BEGAN TO STALL ON 8/9/10 ON A RANDOM AND INTERMITTENT BASIS WHILE DRIVING AT VARYING SPEEDS. THE STALLING APPEARS TO HAVE STOPPED AFTER THE LAST SERVICE WAS COMPLETED ON 7/25/11. THE FOLLOWING INFORMATION RELATES TO THE STALLING ISSUE. EACH DATE IS SEPARATE VISIT TO DEALERSHIP: 8/13/10 - PERFORMED DIAGNOSTIC TEST, WITH NO FAULT CODES STORED. CHECKED WIRING TO PDC AND FRONT CONTROL MODULE. ROAD TESTED FOR 55 MILES. COULD NOT DUPLICATE CUSTOMER CONCERN. 9/2/10 - REPLACED WIRELESS IGNITION NODE - (DUE TO A BIND, STICK OR SEIZE). 10/27/10 - REPLACED THROTTLE BODY. FOUND THE THROTTLE BODY TO BE BINDING. 7/25/11 - PERFORMED DIAGNOSTIC TEST, FOUND A STORED CODE FOR THE CRANKSHAFT SENSOR. COULD NOT DUPLICATE CONCERN. REPLACED SENSOR. NO START ISSUE - THIS IS DEFINED AS TURNING THE KEY TO THE START POSITION BUT WOULD NOT CRANK. FUEL PUMP WOULD TURN ON AFTER A FEW SECONDS. ALL ELECTRICAL SYSTEMS WERE FINE. BATTERY WAS FULL STRENGTH. IN ALL OF THESE CASES, THE CAR WOULD START UP WITHOUT A PROBLEM WITHIN 24-48 HOURS AFTER THE NO-START INCIDENTS. THE FOLLOWING INFORMATION RELATES TO A "NO START" ISSUE. EACH DATE IS A SEPARATE TRIP TO THE DEALERSHIP. 5/30/11 - VEHICLE TOWED IN ON SATURDAY. SERVICE TECHNICIAN STARTED VEHICLE UP THREE TIMES ON MONDAY. LET SIT OVERNIGHT AND STARTED RIGHT UP ON TUESDAY. BATTERY TESTED FINE. NO CODES IN SYSTEM. 7/25/11 - DIAGNOSTIC SCAN, REPLACED CRANKSHAFT SENSOR (SEE STALLING) 7/26/11 - VEHICLE TOWED TO DEALERSHIP. DUPLICATED NO-START ISSUE. REPLACED ENGINE WIRING HARNESS. SERVICE ADVISOR EXTREMELY CONFIDENT THAT THIS WAS THE ISSUE. *AFTER SPEAKING WITH THE SERVICE ADVISOR TODAY, HE HAD TOLD ME THAT THEY HAD REPLACED SEVERAL WIRING HARNESSES ON THE 2007, 2008 G. CHEROKEES EXPERIENCING SAME ISSUE SINCE MY SERVICE ON 7/26/11. *TR

MY PARENTS PURCHASED A BRAND NEW 2008 JEEP GRAND CHEROKEE LIMITED. I WAS DRIVING THE VEHICLE ON JULY 11, 2008 IN MY NEIGHBORHOOD TO PICK UP SOME FOOD WITH MY 8 MONTHS PREGNANT SISTER IN LAW. AS I DROVE THE VEHICLE IT ACCELERATED WITHOUT ME PRESSING ON THE GAS AND I LOST CONTROL AND THE VEHICLE HIT APPROXIMATELY 3-4 PARKED CARS, I LANDED IN THE TRUNK OF ANOTHER VEHICLE, ON TOP OF IT. IF IT WASN'T FOR THE VEHICLES PARKED, I DON'T THINK THE JEEP WOULD HAVE STOPPED. LUCKILY NO ONE WAS HURT BADLY AND THE AIRBAGS WERE NOT EVEN DEPLOYED. THIS INCIDENT HAS REALLY AFFECTED ME AND THE WAY I DRIVE. I DO NOT EVEN LIKE TO BE A PASSENGER IN JEEP VEHICLES ANYMORE. IN JANUARY, 2010 MY MOTHER DROPPED HER CAR OFF AT A GARAGE TO HAVE IT PARKED. SHE WAS CALLED FROM THE GARAGE THAT THE VEHICLE HAD BEEN IN AN ACCIDENT. THE VEHICLE ONCE AGAIN ACCELERATED IN REVERSE AND THERE WAS DAMAGE TO THE VEHICLE AS WELL AS THE GARAGE. JEEP CHEROKEE'S ARE EXTREMELY FAULTY, ALWAYS IN THE DEALERSHIP WITH SOME ISSUE. THIS IS NOT A COINCIDENCE. THIS NEEDS TO BE TAKEN SERIOUSLY. PEOPLE CAN LOSE THEIR LIVES IF THESE VEHICLES ARE NOT RECALLED. *TR

TL*THE CONTACT OWNS A 2008 JEEP GRAND CHEROKEE 4X4. WHILE DRIVING 10 MPH THE VEHICLE ACCELERATED ON ITS OWN WHEN SHE PUT IT IN NEUTRAL GEAR. SHE ENGAGED THE BRAKE PEDAL WHEN THE VEHICLE STARTED TO DECREASE IN SPEED AND THEN TURNED IT OFF. SHE WAS ABLE TO RESTART THE VEHICLE AND TAKE IT TO A DEALER WHO WAS UNABLE TO DUPLICATE THE FAILURE. THE DIAGNOSTIC TEST PERFORMED BY THE COMPUTER INDICATED THAT THE ACCELERATOR PEDAL WAS ENGAGED UP TO 90 MPH. THE VEHICLE WILL BE REPAIRED WHEN THE PARTS ARE AVAILABLE. THE FAILURE HAS OCCURRED 3 TIMES. THE FAILURE MILEAGE WAS 18152 AND THE CURRENT MILEAGE WAS 18160.

TL* THE CONTACT OWNS A 2008 JEEP CHEROKEE. SHE EXPERIENCES UNINTENDED VEHICLE ACCELERATION DURING BRAKE APPLICATION. ALSO WHEN APPLYING PRESSURE TO THE ACCELERATOR PEDAL, THE VEHICLE WILL HESITATE THEN ACCELERATE. THE RPMS WILL INCREASE WITHOUT VEHICLE ACCELERATION. THE VEHICLE WAS TAKEN TO THE DEALER , BUT BECAUSE THE TECHNICIANS COULD NOT DUPLICATE THE FAILURE, THEY COULD NOT PROVIDE A REMEDY. NO REPAIRS HAVE BEEN MADE. THE FAILURE MILEAGE WAS 2000. THE CURRENT MILEAGE WAS 28000.