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Problems with 2008 Jeep Grand Cherokee POWER TRAIN

On average, the 2008 Jeep Grand Cherokee starts to “feel” problems with the POWER TRAIN and its various aspects after 84 395 miles.

Components Affected by POWER TRAIN Issues

We have classified the 63 complaints from 2008 Jeep Grand Cherokee about POWER TRAIN into the following categories.

AUTOMATIC TRANSMISSION 12

Recently reported POWER TRAIN problems on 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

Tl* the contact owns a 2008 jeep grand cherokee. the contact stated that the four wheel drive warning light flickered. the windshield wipers randomly activated and the instrument panel gauges randomly flashed without warning. the dealer replaced the ignition switch; however, the four wheel drive warning light continued to illuminate. the contact mentioned that the vehicle was previously serviced under nhtsa campaign numbers: 13v175000 (electrical system, power train) and 14v567000 (electrical system). the manufacturer was notified of the failures. the failure mileage was not available.

Jeep stalled on the freeway. i was going 65 mph on i-71 and it stalled dead in the roadway. i had to pull over after avoiding other vehicles and restart the vehicle. when it stalled, it gave no warning, simply died on the freeway and i was left with no brakes, no steering and limited drivablity. i called chrysler and got a person by the name of [xxx] as my case manager. she was the most clueless and incompetent person i have ever spoken with. after taking it to the dealership, it stalled again on the freeway a few days later, same thing at freeway speeds. chrysler support is a joke...this issue is still going on. information redacted pursuant to the freedom of information act (foia), 5 u.s.c. 552(b)(6). *tr

2008 jeep grand cherokee overland 5.7 hemi stalled on freeway. i had to immediately pull over as heavy traffic and vehicle would not restart and i lost all steering/brakes/engine control. i ended up hitting a road cone (no notable damage) as i was pulling into the somewhat small pullover zone (was in highway construction). vehicle restarted only after being put in park and removing and reinserting the key. *tr

The vehicle has been in the shop 6 times in 6 years. this latest time chrysler refused to honor the warranty. the dealer, who is out of business due because of chrysler shutting them down, was to notify us of an inspection when it came due. all the other dealer i spoke to confirmed this, however we were never notified. the repairs were $1065 and should have been under warranty per the dealer which did the repairs. chrysler has retroactively charged our warranty as well from lifetime to 3 years, even thought warranty work was done in the same year. we have a book that says lifetime and should be covered after inspection. the dealer which did the repairs had no issues with the vehicle of approving the inspection, chrysler refuse to discuss with the dealer or discuss any further. you have a service light for all services on the vehicle so you don't forget, but you have a 30 day inspection window without any warning or notification. *tr

I am not able to shift the transfer case into 4 wheel drive low range or neutral after the safety recall reprogrammed the computer. *tr

Vehicle shifted into 4wd low by itself while driving in a parking lot. i parked the jeep in a parking space, and after placing the transmission selector in park, the jeep started rolling. i had to use the parking brake to keep it from rolling out of the space. the repair shop replaced the transfer case actuator and harness due to the transfer case shifting in and out of 4wd, and having no park, which caused it to roll. i paid to have this repair work done, just prior to jeep issuing recall n23. jeep has refused to reimburse me for this repair. on three occasions, i have explained to the reimbursement dept, that my vehicle rolled out of it's parking space and shifted in and out of 4wd and neutral on its own. chrysler customer assistance refuses to reimburse per the stated language in their own recall. i have sent chrysler all the required repair documents and receipts.

2008 jeep grand cherokee hemi overland stalled on street twice. attempting to back into a spot and it stalled twice, blocking a lane of traffic. had to put in park, pull key out, put key back in to restart. luckily nobody was driving the posted 35mph speed limit so i was able to get out of the way. *tr

8/8/12 driving from temple tx to tunica ms (stopping there before continuing on to indianapolis, in). car gave no issues/indications of trouble. 8/9/12 car would barely go 10 miles per hour leaving the hotel, would stop forward progress of any kind if i stopped, had to put in park, turn off car and turn on again. had to cross 4 lane highway, but could not get car to move forward fast enough to clear all 4 lanes and middle divider. took it in 2 green light tries and pulled into gas station (1/2 mile from hotel), gave car a rest, filled gas and same problem when started again. had to call tow truck and bring to local jeep dealer, 7 hours waiting at dealer to be told we had an early major transmission failure and it would be 8/13 before it would be ready. rented a car to continue our vacation. $3,934.73, transmission repaired, failure occurred at 41,138 miles, chrysler admits it is an early failure (and states we are out of all warranties), ms dealer states early failure and powertrain should be covered, contact chrysler when we get home and local dealer here states 5/50000 on powertrain. chrysler refuses to reimburse more than $1500 which we have not accepted and refuses to acknowledge 5 year/50,000 mile power train warranty. had this failed while driving at highway speeds it could have caused an accident for ourselves and others. chrysler has not called to this day the repair dealership to understand why the transmission failure occurred. we were told the oil had burnt by the dealership? there was plenty of transmission fluid, it was just burnt. we are writing to you to bring this potential safety issue with early transmission failure to your attention and to ask what exactly is the nhtsa/dot regulations regarding power train coverage/failures and what recourse we may have. thank you for any information you can provide. *tr

Tl* the contact owns a 2008 jeep grand cherokee. the contact stated while driving approximately 25 mph, the vehicle suddenly stalled. after shifting into park, the gear shifter seized and could not be removed from park. the vehicle was taken to the dealer for diagnostic testing. the technician was unable to diagnose the failure. the vehicle was not repaired. the approximate failure mileage was 60,000.

Vehicle would die unexpectedly and not restart until transmission was put in park position. several incidents ie stopped at light, acceleration to turnpike, slow street driving this would disable steering and create difficult braking. *tr

While stuck on ice in our driveway, my wife was concerned about backing down the driveway to retry getting to the house, she had the 2008 jeep grand cherokee in park, i went to assist in backing down the driveway, she hopped over the console and hit the gearshift with her leg or foot the jeep gearshift then went from park, into reverse without the brake being depressed as is the design, the jeep rapidly went backwards the open door "scooping me toward the underside of the jeep, i was able to roll away from the jeep, my wife then got into the driver seat and put into park just before crashing into the wooded area along our driveway. a check of the interlock system showed it was and still is non working. this incident could have been met with tragic results had i not been able to roll away from the underside of the moving jeep, and had my wife been unable to stop the jeep when she did. as a result i have sustained pain to my lower back, and my wife to her cervical spine. *tr

Tl* the contact owns a 2008 jeep grand cherokee. the contact stated while traveling speeds of 40 and 65 miles per hour the vehicle shifted into first gear, causing the vehicle to lose speed. the vehicle was taken to the dealer four times, but the vehicle was not repaired. the manufacturer was not contacted. the failure mileage was 32,000 and the current mileage was 47,000.

When manually trying to shift my 2008 jeep grand cherokee from 3rd to 4th gear the rpms just keep going up and doesn't go into gear the dealership fix this problem 3 times already their seems to be no end in sight, i have talked to many other jeep people online and it seems to be a problem with many others with the 3.7 v6 4x4 its a big deal when your driving on the l.i.e. and you have to pull over and try to get back on !!!! *tr

I recently purchased a newer model used vehicle that has started to present some serious concerns that the dealership where i purchased it cannot figure out the problem and discounts my complaint. my vehicle's motor acts as if is going to stall on take off from a stop position. i have attempted on 3 separate occasions to have the problem serviced by the dealership's service department; however, the dealership tells me they have no concerns with the vehicle. although the problem is not presenting itself when i bring it to the dealership, it is happening more often now than in the beginning of the vehicle's purchase that i know the problem is escalating. i cannot figure out what "triggers" this event except that when it does happen, my two young children are in the vehicle. a new issue also has presented itself. on july 4, as we were traveling down a narrow road aligned by trees, the vehicle down shifted so hard it cause the vehicle to accelerate and forcibly jerk; however, we immediately regained control of the vehicle. my abs, esp and bas lights are displayed and i have an appointment with the dealership to have this serviced for tuesday, july 6, at which tme i will also ask them to perform another inspection/service my stalling motor issue as well as the new accelerating/jerking issue. *tr

2008 jeep grand cherokee stalls at high speeds and intermittently while driving. dealer unable to fix thus far ( has car for almost 30 days). in addition, same thing happened on my 2007 model and has happened to a number of people i know with jeep grand cherokees. internet is filed with reports of same events happening at random. mine stalled at 65 mph - all electric, radio, flashers, everything just goes out. very scary and very unsafe. please evaluate. *tr

Vehicle accelerated when put into reverse. chrysler sent an "independant" inspector, but they will not share the report. in fact, chrysler lied about conducting the inspection. they told me the inspector could not do an evaluation because the vehicle was "disassembled". the dealer tells me the inspector spent two hours with a service technician and test drove the vehicle. i always get suspicious when someone lies to me. this requires follow up to make sure they are not hiding an unsafe defect in their vehicle. *tr

Vibration at 45 miles per hour and above.. *tr

it would not roll down. tl*the contact owns a 2008 jeep grand cherokee. while driving approximately 30 mph on normal road conditions, the engine unexpectedly stalled. there were no warning indicators illuminated on the instrument panel. the vehicle restarted after the first attempt. the gear shifter was placed into drive and the accelerator pedal was depressed, but there was no response. the contact made several attempts before the vehicle was able to be driven again. the vehicle was taken to an authorized dealer, but they were unable to duplicate the failure. in addition, the gear shifter was stuck in park and would not shift into reverse. the vehicle was taken to an authorized dealer on a separate occasion for identical failures, but there were no resolutions. the vehicle has not been repaired. the failure and current mileages were 2,355. updated 3/3/09 *cn the consumer had difficulty getting the vehicle thevehicle out of gear. the left front window did not functin properly. updated 03/04/09. *jb

Tl*the contact owns a 2008 jeep grand cherokee. while stopped at a red light, the vehicle began to shake and lose power. the vehicle was taken to the dealer to have the pcm programmed. the pcm did not stop the shaking; however, the vehicle no longer jerked forward. the vehicle has been at the dealer five times for the shaking issue, but they cannot remedy the failure. the contact feels that this is a safety issue because the shaking and jerking almost caused a crash. the current mileage is 11,700 and failure mileage was 5,514. updated 6/4/09 *cn the rear view mirror was out of frame, the engine had a rough idle and it felt as though it was going to stall. updated 06/09/09.*jb the consumer she and her husband were displeased with the arbitration boards' decision. the consumer stated the vehicle would surge forward and vibrate when at a stop and would feel as though the vehicle would stall, even more without the air condition turned on. the explanation the consumer was given that the air condition will cycle on at the same time the cooling fans which was said to cause the problem. updated 11/02/09.

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

Three months after purchasing a 2008 jeep grand cherokee, the vehicle seems to want to stall when shifting gears. within 8 months it actually is stalling, at various speeds, and has done so at least 15 times in two years. neither the dealership or chrysler acknowledge the shifting problem and have no remedy for the stalling. *tr

Vehicle shuts off and all electrical and power steering inoperable. shut offs happen intermittently at speeds from 20 mph to 70 mph. it generally occurs upon hitting road bumps, rail road tracks or pot holes. these incidents have happened 4-6 times per year. i have taken the vehicle to chrysler's service engineering garage and suburban chrysler jeep and they are unable to replicate or fix the issue. there have been 2 additional shut off incidents in the past 3 days with 2 different drivers. vehicle will restart upon placing transmission in neutral and restarting. based upon chrysler recall campaign for similar issues with 2007 jeep grand cherokees, i believe my 2008 grand cherokee is subject to the same issues as earlier models. updated 4/24/2015 *js

Tl*- the contact leases a 2008 jeep cherokee 4x4. while pulling into a parking garage the vehicle would not accelerated, instead it went into reverse. she waited a few minutes then when she tried to proceed forward the vehicle continued in reverse then jerked and struck the preceding vehicle. the vehicle was towed to the dealer, who wasn't able to diagnose the failure. the dealer stated nothing was wrong and it might have been driver error. a police report was taken by the white plains police department report number 08-10826. the current and failure mileage were 2,511.

Vehicle was purchased on 12/31/07. in two separate occasions, the vehicle's transmission gets stuck and doesn't change gears. car at both times was driven at 40 miles per hour. when accelerated, the vehicle's speed would not increase, rendering the car undriveable. *tr

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