2007 Jeep Grand Cherokee: harsh or hard shifting

Filed Jun 25, 2019 · Acceleration · 132,000 miles · MI

I would be driving and randomly it did hard shifts then it just stopped. The vehicle would be driving and loose speed and not go over 30 MPH. The RPM are at 2500 at 30 MPH and I can push the pedal to the floor and it goes no faster

Filed Oct 16, 2013 · Acceleration, Brakes · 66,000 miles · TN

Started with traction control light flashing, then it slowed vehicle felt like brakes were on, gave it more gas and got no speed increase, pressed on the brake and then it seemed to surge and speed up on its own. This was unexpected acceleration &could have lost control. After this! It went back to normal driving. Next day took a 110 mile trip traveling 70 MPH on highway no issues until I arrived at destination pulled into driveway and put in park and several warning lights came on ABS, esp, bas, &traction control light flashing & service 4 wheel drive... I had no problems until I stopped... When I started up to return home all the above lights stayed on backed up out of driveway , when I put it in drive and gave it gas it started to make a bad grinding sound like metal on metal a clunking sound and did no't respond to fuel peddle. I increased speed then I felt it release like park brake being released... It drove normal back home dash lights still on,... 110 mile trip doing 70 most of the way... At home I used the built in vehicle scanner and got code u1417 which indicates front left wheel sensor... I replaced both sides same grinding sound, replaced the 2 back sensor... Now I have no lights on dash and no grinding clunking sounds no sounds at all. But when I drive I get the traction control light flashing giving it gas I can no't accelerate above 25 MPH ,seems to release at lower speeds below 25mph but it feels like the brakes are on and something it decreasing engine power... This is a dangerous problem! When I pulled unto traffic and I could no't get up to speed I almost got into a broadside accident... I thought I had fixed the problem tested it in my driveway no dash lights on ,and no grinding or clunking sound so what is it now? ... Is it some traction control problem seems to be a fathom problem a lot of jeep owners are having!!

Filed Jun 5, 2013 · Transmission · 68,600 miles · NY

Vehicle loses power when merging with fast moving traffic; needs to be shut down and restarted to regain power; later, check engine light came on sometimes; finally, won't go over 30 MPH and check engine light is continuously on. I have extended warranty from portfolio. I brought it to the dealer's (auto world - patchogue ny) shop (generation kia - medford ny) 03 jun 2013, was told that I needed to bring it to a jeep dealer. I was told verbally that the fault was the transmission input speed sensor. On 05 jun 2013 I went to brown's jeep in patchogue ny and they won't commit to anything or give me a loaner car until the service is approved by portfolio. From the first month of ownership I had complained about rough shifting under certain conditions, but was told at brown's jeep that the transmission was ok. I have noticed some service bulletins for 'drivability' concerning the transmissions had been issued in some states. A lot of other owners have had the same problem, maybe a recall is overdue! Thank you!

Filed Apr 23, 2013 · Electrical, Transmission · 73,276 miles · WI

The drivers window regulator is not working. Second problem is when I start my jeep up and put it drive it sometimes makes a clunk noise , like it' going in hard and all the boxes light up around the p.n.r.d. And it has no power. I have to turn it off and restart it and it clears it up.

Filed Feb 19, 2013 · Transmission · 48,000 miles · NY

This first occurred @ approx. 48k miles. Driving down the road, I accelerate, truck behaved as if it was thrown into neutral. I was able to coast it down the road approx. 1/4 mile and pull off into a parking lot (living in the country, there is no place to safely pull off the road) shut the jeep off, restart and all is good. Now at 55k miles, the rear pinion seal was leaking like a waterfall, replaced, all of a sudden the truck starts with this feeling as if it were thrown into neutral, both times it kicked back into drive on its own. Now today driving home, it clunked, bucked, all p,r,n,d lights light up at once, then they go out, then they light up, this repeats , I made it home, could not accelerate above 40-45. When is jeep going to recall these, after someone is killed. Did I mention I have a 4 year old in the truck every day! I cant drive it at this point, I am petrified, I will not put the child in it. I have to borrow a vehicle until we are able to pull it apart and get the part from the dealer I bought the jeep from 40 miles away! Would never ever recommend a jeep to anyone, ever! I have a friend owns the same jeep, same year, even the same color, he has almost 200k on his and just replaced it, he could not accelerate over 25 MPH. The shame of it is, I love it and I am going to take a huge financial bath on it, even when its repaired, I cant trust it, its not child safe! Also seems very convenient jeep does not transfer warranties! Otherwise this would of been covered, the powetrain warranty on these was extended to lifetime, original owner only!

Filed Dec 13, 2011 · Electrical, Transmission · 43,000 miles · IN

When you shift from park the prdnl will have a box around each of the letters. When backing up it slams into reverse and then slams into drive and the vehicle will only go 20 MPH no matter how much you step on the gas. This has now happened 5 times and the only way it goes back to normal is to shut off the vehicle and start it back up. I have now seen numerous blogs where this happens at highway speeds, in the middle of intersections and is so dangerous to drive cause you never know when it is going to happen. From what I have read it looks like you have to replace the electronic control module at a cost of almost $800 to just have it go out again later and have the same problem again. This is very dangerous and scary!

Filed Jul 29, 2010 · Transmission · 69,290 miles · TN

Own a 2007 jeep grand cherokee 4x4, bought 4 mths ago, I can be driving it down a road and all the sudden it loses power like an acceleration problem, then it will suddenly just take off very quickly, the transmission keeps slipping, I can be on the interstate going 65, take my foot off the gas to slow down some and hear a harsh shifting problem. I have taken it to the dealership 3 different times, each time they tell me there is no problem with the car, I agree with the other complaints on these issues which I have had them all in 4 mths. Windows get stuck and won't roll up and down, car has not started 3 times and had to put in a new starter, crazy dangerous acceleration, shifting issues with the transmission!!!!!!!! I have owned a 1995 jeep cherokee since 2003 and no problems, got this one and problem after problem. This acceleration/ shifting issue is going to kill someone if this car isn't recalled for this problem!!!!!

Filed Dec 5, 2008 · Transmission · 20,688 miles · IA

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.