Last post on Oct 28, 2013 at 4:35 PM
You are in the Jeep Cherokee and Jeep Grand Cherokee
What is this discussion about?
Jeep Grand Cherokee, Jeep Grand Cherokee SRT-8, Jeep Cherokee, Engine, SUV
#711 of 731 2009 Jeep Grand Cherokee acceleration
Aug 28, 2012 (5:59 pm)
My 2009 Jeep Grand Cherokee has a "flat spot" when accelerating. When it reaches that spot, I can stand on the accelerator and nothing happens (RPMs do not move). Eventually it figures out that I want it to go faster and then begins acceleration (sometimes after sputtering and backfiring). The dealership where I bought it cannot duplicate the problem and says nothing is wrong. They even had me run fuel with Techron, but the problem still occurs. Now that it's out of warranty I've taken it to my local mechanic. He has driven it and it has done the same thing with him, however he doesn't know what the fix is. He suspicions something with a sensor for the throttle. Any ideas?
#712 of 731 Re: 2011 Hemi hesitation/misfire problem [halo2]
Sep 01, 2012 (3:19 am)
Just got a 2102 Overland with the hemi. Nothing noticeable in normal around town but when I try to accelerate, the motor just seems dead. I took it on the highway and there is no passing power whatsoever. Vehicle bucks when trying to accelerate. It feels like it is running on 4 cylinders. I had rented a 6 cyl in Utah in Feb and loved it. It had pretty good power but this is a DOG. It lugs going up hills. started noticing it around 350 miles. Took it to dealer at 600mi. Reflashed computer and took it on a trip. Horrible on the highway, no power. you have to put your foot to the flor and get it into 4th to accelerate. I am SO disappointed right now. Glad to at least know I am not the only one. Will keep you updated
#713 of 731 Re: 2011 Hemi hesitation/misfire problem [brn2skifst]
Sep 10, 2012 (10:05 am)
If you think your Hemi has no power, try the V6. It has to kick down all the time to get moving around town and on the highway. They say it is normal. It doesn't help that all the torque and HP is at 4-5000 rpm. Not the right engine for a heavy vehicle. I am going to wait for the diesel and with the 8 speed, should get the performance we need. As far as the Hemi, I don't know what Chrysler did to it but I would be embarrassed to promote that engine as a performance engine. The performance specs on the Hemi barely beats the V6 and is way more thirsty than the V6. I drove a couple of them and would not spend the extra money on price and gas, it is not worth it.
#714 of 731 Re: 2011 Jeep GC [kjo12]
Sep 20, 2012 (8:25 am)
Speed sensors on transmission was my problem.
#715 of 731 Re: 2011 Hemi hesitation/misfire problem [halo2]
Nov 06, 2012 (6:46 am)
My 2012 Overland with the 5.7 Hemi is shuddering at Highway speeds every time i come to an incline. I have tryed to see if cruise control changes anything, but no luck. The only way around it is to go back into manual mode and raise the RPMS. Just yesterday I went and complained to my dealership for the second time. The first time they ran the diagnostic , and told me no issues were found. So this time I insisted on taking the service manager out on a drive. On the drive he did his best to educate on how the vehicle is designed save me money.... switching to 4 cylinder mode whenever possible. I myself continued to educate him that for the money I payed, this was not acceptable. With the service manager driving, we approached an incline, the vehicle hesitated right on cue. Back at the dealership we scheduled yet another diagnostic appointment.
#716 of 731 Re: 2011 Hemi hesitation/misfire problem [tliftguy]
Nov 06, 2012 (7:08 am)
Join the club--Went through the same thing--Regional tech even came out and drove it--He said "normal operating condition" and yes the only way around it is manual down shift. Let me know what hey say when they look at it again.
#717 of 731 Re: 2011 Hemi hesitation/misfire problem [halo2]
Nov 06, 2012 (6:14 pm)
My lemon law arbitration hearing is Nov 16th. I have several people who are on jeepforum.com that have written me directly describing the same problem. I am bringing their letters with me as extra ammunition. Its frustrating because there are a lot of things to love about the truck but I hate being B.S.'d by Chrysler. They are selling thousands of these things and they all have this problem to some degree I believe. The term "fishbite" describes it well and I heard it from a Chrysler rep. They apparently have software to fix the problem but it has to go through testing. (this was also from a Chrysler rep)
#718 of 731 Re: 2011 Hemi hesitation/misfire problem [brn2skifst]
Nov 08, 2012 (6:09 pm)
I was told about that softwear fix by my service manager where I bought my Overland. He told me today it will be out in February.... and that I should phone them to see if its out yet.
UM!!! YOU HAVE GOT TO BE KIDDING ME. I SHOULD PHONE THEM?
Look. This is NOT an entry level vehicle. This is Jeeps "MOST REWARDED EVER" vehicle.
You, me, and everone else who payed to own this vehicle shouldnt have to be searching to solve the problem.
Im sorry... but I am PISSED!
#719 of 731 Re: 2011 Hemi hesitation/misfire problem [tliftguy]
Nov 08, 2012 (8:52 pm)
After hearing from my dealership that I need to wait till February new FLASH that should solve my problem. And that I should give them a call to see if it has arrived... I decided to find out how many other people have the same issue as us.
I created a page on Face Book. "Does Your Grand Cherokee Fishbite?"
Please pass this on to as many people as you can!