2008 Jeep Grand Cherokee

MY 2008 JEEP GRAND CHEROKEE (5.8L) HAS A PERSISTENT PROBLEM WHERE THE ENGINE WILL SHUT OFF UNEXPECTEDLY. PROBLEM HAS BEEN ONGOING FOR 9 MOUNTS, AND 3 DIFFERENT DEALERS HAVE BEEN UNABLE TO DETERMINE THE CAUSE OF THE PROBLEM. PROBLEM OCCURS IN ALL DRIVING CONDITIONS, AND IS NOT REPEATABLE. SOMETIMES ENGINE SHUTS OFF VERY BRIEFLY (~.25 SECOND) AND PICKS UP WITH JUST A 'HICCOUGH' IN NORMAL OPERATION, SOMETIMES ENGINE SHUTS OFF FOR > 2 SECONDS, AND I NEED TO SHIFT TO NEUTRAL, AND RE-ENGAGE THE KEY TO START THE ENGINE. THE PROBLEM OCCURS AT RANDOM TIMES (ON CRUISE CONTROL ON STRAIGHT, FLAT HIGHWAY AT 65 MPH, IDLING AT STOP LIGHT, ACCELERATING INTO TRAFFIC, SLOWING FOR EXIT RAMP). SOMETIMES I WILL DRIVE FOR HUNDREDS OF MILES WITHOUT AN OCCURRENCE, SOMETIMES THE ENGINE CUTS OUT 5 TIMES IN A 5 MILE DRIVE. PROBLEM IS NOT REPEATABLE, AND NOT PREDICTABLE. *TR

TL*THE CONTACT OWNS A 2008 JEEP GRAND CHEROKEE 4X4. WHILE TRAVELING 55 MPH THE CONTACT WAS ATTEMPTING TO MAKE A RIGHT HAND TURN AND THE VEHICLE SUDDENLY STALLED, CAUSING THE CONTACT TO COAST THE VEHICLE TO A STOP. THE VEHICLE WAS TAKEN TO THE DEALERSHIP WHERE THE CONTACT WAS INFORMED THAT THE FAILURE COULD NOT BE REPRODUCED. THE CURRENT AND FAILURE MILEAGES WERE 31900.

WHILE SITTING AT A STOPLIGHT, ON TWO (2) OCCASIONS MY 2008 JEEP GRAND CHEROKEE 4X4 SUDDENLY ACCELERATED ON ITS OWN WHILE MY FOOT WAS ON THE BRAKE AND REVVED UP (THROTTLE SURGE), THEN THE TACH WENT BACK TO NORMAL, AND THE ENGINE WENT BACK TO IDLING. TOOK IT TO THE DEALER I BOUGHT IT FROM, THEY CHECKED THE ON-BOARD COMPUTER AND NO INCIDENT SHOWED; THEY TOLD ME THEY CALLED CHRYSLER BUT NO ONE HAS REPORTED THIS BEFORE AND NO TECHNICAL BULLETIN HAS BEEN ISSUED REGARDING THROTTLE SURGE ISSUES. HAVE ONLY HAD THE VEHICLE 11 MONTHS. NOW AT TIMES, WHILE STOPPED AND IDLING, THE ENGINE WILL ACT LIKE IT'S GOING TO CUT OFF AS THE IDLE DROPS FOR A FEW SECONDS. DEALER ALSO DID NOT FIND AN ISSUE IN THE COMPUTER WITH THIS PROBLEM WHEN I TOOK IT IN A SECOND TIME. *TR

2008 JEEP GRAND CHEROKEE LIMITED 5.7L HEMI 4X4. EXPERIENCING LOUD ENGINE NOISE WHEN FIRST STARTED. MOST NOTICEABLE WHEN ENGINE IS COLD. MORE PRONOUNCED ON COLDER DAYS THAN WARMER DAYS. APPEARS TO EVENTUALLY SUBSIDE AFTER ENGINE REACHED MAXIMUM OPERATING TEMPERATURE. NOISE IS NOT ENGINE PISTON SLAP, DOES NOPT INCREASE WHEN ENGINE REVOLUTIONS ARE INCREASED, RATHER, IT APPEARS TO SUBSIDE, INDICATING VALVE TRAIN NOISE DUE TO HYDRAULIC LIFTER NOT FULLY PUMPING UP, RESULTING IN VALVE TRAIN CHATTER REMINISCENT OF MECHANICAL LIFTERS NEEDING ADJUSTMENT, DUE TO COLD OIL (HIGHER VISCOSITY) OR LOW OIL PUMP PRESSURE. CHANGING TO MANUFACTURER RECOMMENDED MOBILE1 SEEMS TO INCREASE NOISE. *TR

SINCE TURNING 38,000 MILES MY JEEP GRAND CHEROKEE 4X4 LIMITED HAS BEGUN TO STALL WITH REGULARITY. THE VEHICLE ALSO SHIFTS VERY HARD WHILE AT HIGHWAY SPEEDS. THE VEHICLE HAS STALLED WHILE STANDING AT A STOP, TRAVELING ON SECONDARY ROADS, AND HIGHWAY SPEEDS. THE DEALER HAS CHANGED SOME SENSORS ETC WITHOUT ANY SUCCESS. EVEN WORK DONE AT AN INDEPENDENT GARAGE HAS FAILED TO SOLVE ANYTHING. THIS VEHICLE HAS BECOME AN ABSOLUTE DEATH TRAP. I DEPEND ON THIS VEHICLE FOR WORK AND TO TRANSPORT MY 1 YEAR OLD. WHEN THE VEHICLE STALLS NO LIGHTS INDICATE AN ISSUE AND NO CODES ARE STORED. THE DEALER HAS SENT ME PACKING NUMEROUS TIMES. THEY ALWAYS SAY TO COME BACK WHEN A LIGHT COMES ON. I'VE TRIED TO EXPLAIN THAT THE NEXT TIME MAY BE THE LAST TIME. A SEARCH ONLINE SHOWED THAT MY SITUATION IS FAR FROM THE ONLY ONE. I'VE HAD NUMEROUS JEEPS OVER THE YEAR AND NEVER HAD THIS PROBLEM. SOMETHING HAS GOT TO BE RESOLVED. NOT ONLY AM I AND MY FAMILY IN DANGER, BUT ANYONE NEAR ME WHILE I'M ON THE ROAD. WHO WOULD EXPECT THE CAR IN FRONT OF THEM ON THE HIGHWAY TRAVELING AT 65 MPH TO JUST STOP. PLEASE NHTSA STEP UP AND FLEX SOME MUSCLE. *TR

TL* THE CONTACT OWNS A 2008 JEEP GRAND CHEROKEE. INTERMITTENTLY WHILE DRIVING THE VEHICLE WOULD STALL WITHOUT ANY PRIOR WARNINGS. ALTHOUGH THE VEHICLE WAS SHUT OFF, THE RADIO WOULD CONTINUE TO PLAY. WHEN RESTARTING THE VEHICLE, THE ENGINE LIGHT WOULD ILLUMINATE ON THE INSTRUMENT CONTROL PANEL. SHE TOOK THE VEHICLE TO THE DEALERSHIP FOUR TIMES , BUT THE TECHNICIANS COULD NOT IDENTIFY A CAUSE FOR THE FAILURE. SHE CONTACTED THE MANUFACTURER AND WAS ADVISED TO TAKEN THE VEHICLE BACK TO THE DEALERSHIP. THE CURRENT MILEAGE WAS 11,098. THE FAILURE MILEAGE WAS APPROXIMATELY 5,000.

2008 GRAND CHEROKEE 4X4 4.7L FLEXFUEL STALLING AT VARIOUS HIGHWAY SPEEDS. THROTTLE LAGGING, HARSH UP/DOWN SHIFTING, HESITATION ON TORQUE DEMAND, FUEL MILEAGE REDUCED BY 20%. AFTER THE FIRST TWO STALLING OCCURRENCES, THE DEALERSHIP REPLACED THE FCM (FRONT CONTROL MODULE) SINCE THE SERIAL NUMBER OF THE INSTALLED ONE-337- MATCHED THE FEBRUARY 2008 RECALL, ALTHOUGH CHRYSLER DATABASE VIN RECALL SEARCH CAME BACK EMPTY??!! THE THIRD AND FOURTH STALLING EVENTS WERE FOLLOWED UP BY THE REPLACEMENT OF THE PCM (POWERTRAIN CONTROL MODULE) SINCE A "SOFT FAULT"-"TORQUE REQUEST DENIED" WAS FOUND STORED WITHIN THE CONTROLLER. HOWEVER, AFTER SIX HUNDRED MILES, A FIFTH STALLING OCCURRED. THIS TIME A HARD FAULT RELATED TO THE MAP SENSOR (INTAKE MANIFOLD ABSOLUTE PRESSURE) WAS FOUND. THE REPLACEMENT WAS SCHEDULED IN 48 HOURS. THERE WERE SIX DEALERSHIP APPOINTMENTS(ONLY TWO DOCUMENTED THOUGH ??!!) AND IT WAS INVARIABLY EITHER "WE HAVE TO ORDER THE PART" OR "THERE IS NOTHING WRONG WE COULD POINT AT". THE ALMOST NEW VEHICLE IS NOT SAFE TO BE DRIVEN ON PUBLIC ROADS. YET CHRYSLER NEVER PROVIDED A TEMPORARY REPLACEMENT UNTIL THE SAFETY HAZARD COULD BE LOCATED AND ELIMINATED. AFTER EVERY ATTEMPT OF SOLVING THE PROBLEM, THE CUSTOMER IS SENT AWAY TO TRY HIS (HER) GOOD LUCK WITH A VEHICLE WHICH MIGHT BE OKAY. I DON'T THINK THIS A PROFESSIONAL APPROACH FOR BOTH CHRYSLER AND THE DEALERSHIP SERVICING THE VEHICLE. GUESSING AND SAFETY DOES NOT BELONG WITHIN THE SAME SENTENCE ! *TR

2008 GRAND CHEROKEE 4X4 4.7L FLEXFUEL EXTREMELY SLUGGISH ON THROTTLE DEMAND (305 HP ???!!!), HARSH TRANSMISSION UP/DOWN SHIFT AND STALLING AT HIGHWAY SPEEDS (FOUR OCCURRENCES WITHIN FIVE WEEKS) . THE DEALERSHIP PERFORMED THE FEBRUARY 2008 RECALL OF THE FCM (FRONT CONTROL MODULE) AFTER BEING DIRECTED BY THE CUSTOMER TO DO SO SINCE THE SERIAL # ON THE MODULE MATCHED THE "WRONGLY MANUFACTURED" ONES; HOWEVER, THE VIN SEARCH WITHIN CHRYSLER RECALL DATABASE RETURNED EMPTY. EVIDENTLY, THE DEALERSHIP OWNING THE NEW VEHICLE AT THE DATE OF THE RECALL NEVER PERFORMED IT (AS REQUIRED BY LAW) . THE INCIDENT REPEATED AFTER THE REPLACEMENT OF THE FCM. THE DEALERSHIP RETRIEVED AN ABS FAULT CODE HENCE DECIDED THAT THE PCM (POWERTRAIN CONTROL MODULE) IS DEFECTIVE???!!! ( SEVEN DAYS ON BACK ORDER) "LIFETIME POWERTRAIN WARRANTY" SEEMS TO BE ACCOMPLISHED BY IGNORING OF THE DRIVER'S SAFETY. THE SOFTWARE RUNNING ON THE PCM SHOULD NEVER BE GIVEN THE CHOICE OF IMMEDIATELY SHUTTING OFF OF THE ENGINE ESPECIALLY WHEN THE VEHICLE TRAVELS AT A HIGH RATE OF SPEED. MODERN STEERING AND BRAKING SYSTEMS ARE ALMOST NON-OPERATIONAL WHEN THERE IS NO AVAILABLE ASSISTING POWER. *TR

2008 GRAND CHEROKEE OVERLAND - STALLS INTERMITTENTLY WHILE DRIVING. OCCURS EVERY SO OFTEN - HAVE TO STEER IT TO THE SIDE OF THE ROAD, TURN OFF ENGINE AND TURN IT BACK ON. IT HAPPENS EVEN WHEN STANDING STILL AT A RED LIGHT. IT HAPPENED WHEN THERE WAS LITTLE MILEAGE ON THE CAR, AND IT KEEPS HAPPENING TOOK IT TWICE TO SERVICE STATION. CAN FIND NOTHING WRONG. STARTED HAPPENING NOVEMBER 2008 AND STILL HAPPENS. *TR