2007 Jeep Grand Cherokee

SHORTLY AFTER CHANGING THE SPARK PLUGS IN MY WIFE'S 2007 GRAND CHEROKEE OVERLAND THE VEHICLE WOULD STALL ON DECELERATION. I THOUGHT IT MIGHT BE AN ISOLATED INCIDENT, BUT THE STALLING CONTINUED FREQUENTLY. THE ENGINE COMPLETELY SHUTS DOWN AND THE VEHICLE MUST BE STOPPED OR PUT IN NEUTRAL WHILE COASTING TO BE RESTARTED. AFTER CONDUCTING SOME INTERNET RESEARCH I FOUND THIS TO BE A COMMON PROBLEM WITH THE 2007 GRAND CHEROKEES WITH HEMI'S. I WAS AMAZED AT THE NUMBER OF OCCURRENCES OF THIS HAPPENING AMONG THIS VEHICLE. THERE ARE JEEP FORUMS (HTTP://WWW.JEEPFORUM.COM/FORUM/F67/2007-JEEP-GRAND-CHEROKEE-OVERLAND-STALLING-PROBLEM-1147825/) THAT DISCUSS THIS ISSUE IN DEPTH. THE VEHICLE STALLS LESS FREQUENTLY THAN IT DID WHEN I FIRST CHANGED THE SPARK PLUGS, BUT IT STILL HAPPENS. THE MOST RECENT OCCURRENCE WAS ON NOVEMBER 1, 2013 WHEN MY WIFE WAS PICKING MY SON UP FROM SCHOOL. CHRYSLER CORPORATION FAILS TO TAKE A STANCE ON THE PROBLEM DENYING THAT THE PROBLEM EXIST. I HAVE SPOKE TO MY LOCAL DEALER'S SERVICE DEPARTMENT ABOUT THE PROBLEM AND THEY DENIED ANY KNOWLEDGE OF IT. I WOULD SALE THE VEHICLE, BUT IN GOOD CONSCIENCE I COULD NOT DO THAT TO ANOTHER INDIVIDUAL. SEVERAL DEALERSHIPS HAVE REPLACED THE UPPER AND LOWER WIRING HARNESSES ON SEVERAL VEHICLES AND THIS SEEMS TO HAVE RESOLVED THE PROBLEM. AGAIN TO RESTATE THE PROBLEM IT SEEMS TO OCCUR AFTER THE SPARK PLUGS ARE CHANGED IN THE VEHICLES. THIS WOULD LEAD ONE TO BELIEVE THAT DISTURBING THE POSITION OF THE WIRING HARNESS EFFECTS THE VEHICLE. CHRYSLER NO LONGER MANUFACTURERS THAT WIRING HARNESS, AS THEY ARE ON THE THIRD VERSION OF IT. THIS IN ITSELF WOULD LEAD YOU TO BELIEVE THAT CHRYSLER HAS SOME KNOWLEDGE OF A PROBLEM, BUT WILL NOT ISSUE A RECALL OR TAKE ANY OFFICIAL POSITION. MY MAIN CONCERN IS FOR MY WIFE AND CHILDREN'S SAFETY WHILE RIDING IN THIS VEHICLE. I ASK THAT YOU PLEASE TAKE AN IN-DEPTH LOOK INTO THIS SITUATION. *TR

MY WIFE WAS DRIVING OUR VEHICLE DOWN THE ROAD AND NOT EVEN 2 MILES THE VEHICLE WOULD NOT LET HER GO FASTER THAN 30 MPH AND THE VEHICLE WOULD NOT SHIFT OUT OF GEAR. THE CHECK ENGINE LIGHT CAME ON AND WE TOOK IT TO GET AN OBII SCAN. THE CODE THAT WAS PROMPTED WAS AN ESM MALFUNCTION OR TRANSMISSION SPEED SENSOR. I AM HAVING SO MUCH TROUBLE FINDING A SPEED SENSOR THAT IS AVAILABLE AND HIGH PRICED. THE ESM IS NOT HARDLY AVAILABLE ANYWHERE EXCEPT AT A DEALER. I HAVE BEEN READING TONIGHT ONLINE AND THERE HAVE BEEN MANY CASES OF THESE PROBLEMS HAPPENING WITH SOME MORE SEVERE INCIDENTS. IF SO MANY PEOPLE ARE HAVING SHIFTING, ESM AND SPEED SENSOR ISSUES, SHOULDN'T THIS ISSUE BE ADDRESSED. I AM PRETTY SURE THIS ISN'T THE FIRST ISSUE OR COMPLAINT. I HAVE A 3 YEAR OLD AND A VEHICLE THAT WAS NAMED A SMART BUY BY CONSUMER GUIDE AUTOMOTIVE IN 2006 AND THE REDEFINING VEHICLE OF JEEPS FLAGSHIP IS A HAZARD AND UNSAFE FOR MY FAMILY. I WILL NOT BE RECOMMENDING A JEEP OF THIS YEAR TO ANYONE. I HOPE YOU TAKE THIS INCIDENT WITH THOUGHTFUL CONSIDERATION AND START THINKING ABOUT YOUR CONSUMERS SAFETY. [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6). *TR

JEEP LOOSES POWER, WILL NOT ACCELERATE OVER 30 MPH. THIS HAS NOT HAPPEN ON A HIGHWAY YET (LUCKILY) ONLY IN-TOWN DRIVING. NO ERROR CODES PRESENT IN DTC REPORT OR FROM A DIAGNOSTIC THAT COST $90.00 SOMETHING NEEDS TO BE DONE ABOUT THIS BEFORE AN ACCIDENT RESULTS IN A FATALITY. THERE SEEMS TO ME MANY INSTANCES LIKE THIS ON THESE BOARDS. THIS IS THE FIRST INVESTMENT OF A 'REAL' VEHICLE THAT I'VE HAD. TO PAY MONEY FOR SOMETHING DEPENDABLE IS THE GOAL. CURRENTLY THIS VEHICLE IS NOT DEPENDABLE, LET ALONE SAFE. *TR

MY WIFE WAS DRIVING AND JUST ABOUT TO GET ONTO THE INTERSTATE AND WITH NO WARNING, SHE COULDN'T ACCELERATE PAST 25-30MPH. LUCKILY SHE WAS ABLE TO PULL TO THE SIDE OF THE ROAD QUICKLY WITHOUT AN ISSUE AND TURNED THE CAR OFF, WAITED A MINUTE AND STARTED THE JEEP UP AGAIN AND WAS THEN ABLE TO ACCELERATE. WHEN TALKING TO THE DEALER, THEY HAVE NEVER HEARD OF THIS PROBLEM BEFORE. WHEN JEEP WAS CHECKED AT A LOCAL DEALER, THEY PULLED ERROR CODES THAT POINTED TO THE TRANSMISSION SPEED SENSOR. ONLY ABOUT $700 TO REPLACE THAT WITH LABOR!! THE SENSORS ARE ALL PART OF THE CIRCUIT BOARD AND THUS NEED TO DISMANTLE THE TRANSMISSION TO REPLACE THE SENSORS. THEN I GET ON THIS SITE AND SEE ALL THE COMPLAINTS WITH THE SAME ISSUE. THIS WEEKEND I'M GOING CAR SEARCHING TO GET RID OF THIS THING. *TR

TL* THE CONTACT OWNS A 2007 JEEP GRAND CHEROKEE. WHILE DRIVING APPROXIMATELY 45 MPH, THE VEHICLE SUDDENLY BEGAN TO DECELERATE INDEPENDENTLY WHILE THE CONTACT WAS DEPRESSING THE ACCELERATOR PEDAL. THE VEHICLE THEN ACCELERATED SUDDENLY AND RAPIDLY. THE VEHICLE WAS TAKEN TO THE DEALER FOR DIAGNOSTIC TESTING. THE TECHNICIAN WAS UNABLE TO DIAGNOSE THE FAILURE. THE VEHICLE WAS NOT REPAIRED. THE VIN WAS NOT AVAILABLE. THE APPROXIMATE FAILURE MILEAGE WAS 64,000.

WHILE PULLING OUT OF A GAS STATION INTO HEAVY TRAFFIC, I BEGAN ACCELERATING TO THE SPEED LIMIT OF 45 MPH. I WAS ACCELERATING RAPIDLY AS TRAFFIC WAS COMING QUICKLY FROM BEHIND. THE JEEP STOPPED ACCELERATING AND THE INSTRUMENT PANEL SHOWED ALL OF THE DRIVE LETTERS WITH BOXES AROUND THEM. THE JEEP WOULD NOT ACCELERATE FOR OVER 20 SECONDS, CAUSING ME TO RAPIDLY PULL OFF OF THE ROAD TO AVOID TRAFFIC BEHIND ME. THE DEALER FOUND A FAULTY ELECTRONIC SHIFT MODULE AND REPLACED IT. THE VEHICLE HAS WORKED WELL UNTIL 2/15/12. AT 70,000 MILES, THE DEALER INSTALLED MODULE HAS FAILED AGAIN. ONCE MORE THIS HAPPENED WHEN ENTERING A HEAVY TRAFFIC ROADWAY. THERE HAVE BEEN NUMEROUS REPORTS THROUGHOUT THE INTERNET OF PEOPLE EXPERIENCING THIS SAME ISSUE. IN MY CASE, BOTH FAILURES RESULTED IN ME HAVING TO TAKE EVASIVE ACTION TO AVOID A COLLISION. I FIND IT HARD TO BELIEVE THAT THIS SEEMINGLY COMMON PROBLEM HAS NOT BEEN IDENTIFIED AS THE TREMENDOUS SAFETY PROBLEM IT . *TR

I PURCHASED THIS VEHICLE ON DECEMBER 14, 2011. ABOUT THREE WEEKS LATER IN A PARKING LOT, WE NOTICED THE VEHICLE WOULD NOT ACCELERATE EVEN THOUGH THE ACCELERATOR PEDAL WAS PUSHED VIRTUALLY ALL THE WAY DOWN. A FEW DAYS LATER THE ENGINE WARNING LIGHT CAME ON. THEN THE LACK OF ACCELERATION HAPPENED ON THE INTERSTATE. MY MECHANIC CLEARED THE ENGINE WARNING LIGHT BUT IT CAME BACK ON A FEW DAYS LATER. I DID A LOT OF RESEARCH AND IT APPEARS THIS IS A COMMON PROBLEM ON JEEP VEHICLES. THE PROBLEM IS A FAILURE OF THE ELECTRONIC SHIFT MODULE. IT IF VERY EXPENSIVE TO HAVE REPLACED. MY LOCAL DEALERSHIP CHARGED ME $924 PLUS TAX. AS MANY COMMENTS AS I HAVE SEEN ON THIS AND THE FACT THAT LACK OF ACCELERATION IS A SAFETY ISSUE, JEEP SHOULD NOT HESITATE IN ISSUING A RECALL. *TR

I WAS NOT ABLE TO CONTROL THE SPEED OF MY VEHICLE DURING ACCELERATION. WHEN I ACCELERATED, THE CAR WOULD SIGNIFICANTLY DECREASE IN SPEED ALMOST AS IF IT WAS RUNNING IN LOW GEAR. IT HAS HAPPENED AT LEAST 4 TIMES SINCE I PURCHASED THE CAR BRAND NEW. TODAY AT 60,000 MI IT HAPPENED TWICE. A FEW MONTHS AGO I TRIED TO MERGE ONTO THE FREEWAY AND LOST POWER WHICH WAS VERY DANGEROUS AND I HAD TO TURN ON THE HAZARD LIGHT AND QUICKLY PULL OVER TO THE SHOULDER. I NOTICED ALL OF THE LIGHTS [ P, R, N, D] ON THE DASH BOARD WERE ON. THE CAR SEEMS TO RESET WHEN I SHIFT TO PARK OR TURN THE IGNITION OFF AND THEN ON. THE PROBLEM HAPPENS INTERMITTENTLY. I BELIEVE THAT THIS COULD BE A MANUFACTURE DEFECT. I TOOK THE CAR TO 2 AUTHORIZED JEEP CHRYSLER DEALERSHIPS TO GET IT CHECKED OUT. ONE DEALERSHIP TOLD ME THAT THEY'VE NEVER HEARD OF THE PROBLEM, ANOTHER ONE FOUND A CODE U0404 BUT DIDN'T KNOW WHAT IT MEANT. I FIND THIS EXTREMELY DANGEROUS AND COULD BE A MANUFACTURE DEFECT. *TT

UPON ACCELERATION FROM STOP VEHICLE WILL HESITATE AND LOSE POWER. THIS CONSTITUTES A HAZARD TO VEHICLE AND ANY APPROACHING VEHICLES DURING A TURN. INSPECTION INDICATES THAT TRANSMISSION ELECTRONIC CONTROL MODULE IS AT FAULT ALONG WITH A POSSIBLE TRANSMISSION SENSOR FAILURE. THE CHECK ENGINE LIGHT WILL COME ON. BOTH OF THESE CONDITIONS ( POWER AND CHECK ENGINE ) ARE INTERMITTENT, INDICATING THAT THE MODULE IS FAULTY. THERE HAVE BEEN MANY COMPLAINTS ABOUT THE TRANSMISSION ECM ON THESE VEHICLES. THE OTHER COMPLAINTS HAVE VARYING SYMPTOMS BUT ALL GO BACK TO THE TRANSMISSION ECM. THESE UNIT SHOULD BE RECALLED AND REPAIRED OR REPLACED AT MANUFACTURERS COST. THIS PROBLEM EXISTS IN MANY DIFFERENT MODELS AND YEARS OF VEHICLES, BUT ALWAYS GO BACK TO THIS ECM UNIT. AFTER INVESTIGATING THIS PROBLEM I DON'T FEEL THAT THE CONSUMER IS AT FAULT OR CAUSING THIS TO OCCUR. CHRYSLER MODULES ARE AND HAVE BEEN FAULTY IN THE PAST. ANECDOTAL EVIDENCE SAYS THAT OTHER MODULES IN CHRYSLER VEHICLES HAVE HAD PROBLEMS TOO. PLEASE INVESTIGATE THE CHRYSLER TRANSMISSION ECM'S AND HAVE THEM RECALLED. *TR