Last post on Oct 28, 2013 at 4:35 PM
You are in the Jeep Cherokee and Jeep Grand Cherokee
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Jeep Grand Cherokee, Jeep Grand Cherokee SRT-8, Jeep Cherokee, Engine, SUV
#722 of 731 Re: 2011 Hemi hesitation/misfire problem [brn2skifst]
Nov 09, 2012 (4:58 am)
Please let us know what happens---I'm not sure but i think I started this edmund's forum a couple of years ago--still have the problem. I will try to find the FB page
#723 of 731 Re: 2009 Jeep Grand Cherokee acceleration [wildwally1]
Jan 02, 2013 (3:46 pm)
Same thing here getting it fixed tomorrow. Mech. said transmission circuit board.
#724 of 731 Re: 2011 JGC Car&Driver 40k review in shop alot
Jan 04, 2013 (5:01 am)
In a recent long term review of the JGC Laredo 3.6, Car and driver had a low speed clanking problem with the transmission almost immediately. Not good. It was in the shop at 2.7 k and 3.4 k.
The powertrain and drivetrain modules were replaced (been there done that) and the problem was fixed....but only temporarily. They decided to live with it, and sure enough at 33,860 a new transmission was needed. Chrysler engineers finally found the the plant had not installed a retainer snap ring, and that was the cause. The bigger issue here is that many, many JGC's had bad experiences with the transmission, including myself.
After the tranny was replaced C/D felt their troubles were over, until one of the techs working on the tranny problem failed to install a bracket at the drive shaft and it caused vibration and then bushing failure.
Look, I loved my 99 Jeep 4.7. It drove great, the small block made awesome music and had 320 lb-ft torque along with 235 HP. It was paid for, and I would have kept it forever and planned on training my girls how to drive in it.
However, it was in the shop every other month for something, almost always costing me $1000. This is why I sold my GC WJ. It only had 135K. Look,it is supposed to be a go-anywhere vehicle! Well, unless in the shop, where it is going nowhere.
If anyone else has tranny troubles please let me/us know what the problem was and how it was fixed. I am very curious.
#725 of 731 94 Grand Cherokee, 5.2, no power
Mar 07, 2013 (8:57 am)
I have a 94 Grand Cherokee, 5.2, at, 4wd. I started getting a check engine light awhile
back. It would come on after several miles and stay on. If I stopped and restarted the
car it would go off but come back after several more miles. When we flashed the
car, the code came up as an O2 sensor. Well waiting to replace this the car pretty much
quit. I was driving it and it was running just fine, but all of a sudden just lost power.
It would start, but would not run over about 1500rpm. Flooring the gas pedal did nothing.
I had it towed to the shop where we put in a new O2 sensor and changed the plugs
because they were pretty black. That changed nothing. In the meantime I saw somewhere
online that this could be the symptoms of a clogged catalytic converter. This kind of made
sense because the car just turned over 300,000. So we cut the exhaust pipe right
in front of the converter to eliminate it, but nothing changed. The way the car was running
this does not appear to be a mechanical problem, rather computer or sensor related. The
mechanic is kind of at a loss and doesn't want to spend anymore time on it. Unfortunately
the car has OBD1 diagnostics and their shop does not have the equipment to diagnose the
I hate to junk it, but I am unemployed and have very little money to throw at it.
#726 of 731 Stalling 93 w/power loss
Mar 08, 2013 (11:38 am)
Well, the first thing I would do is replace the ECU. You can get a freshly flashed unit on eBay for about $200, and put it in yourself. After these things get hot and cold for 20 yrs they fail. Heck, they failed randomly in my 99. I really think this will solve it.
#727 of 731 electric problems and then some
Mar 15, 2013 (7:14 am)
Figured I would post here in the event anyone has ideas/suggestions
Hello all- if you read my previous post about our 2012 GC, you know that I have been dealing with a few electric problems. After two trips to the dealer, the switch to open the rear glass has been replaced.
No on to what happen last night. My wife started up the GC, all the lights were on and blinking including the blind spot warning in the mirrors. She puts the car in drive, gauges dont work, car feels underpowered. She tried to drive, but didn't feel safe doing so. She returned to our in-laws, 20 miles away. I went to pick her up. The only light that stayed on was the check engine light. I drove it home with no problems. This AM, the engine light went off and everything was fine.
Has anyone heard of this? Or have any idea what it is?
I have appointment tomorrow to get it looked at and am hoping that it threw an error code they can see. Although I am preparing myself for the usual "cant replicate customers issue". Im sure it wont happen again until I have my family 15 miles out on the beach this summer.
Any input or feedback would be great.
#728 of 731 Re: electric problems and then some [larrys8]
Mar 16, 2013 (11:00 am)
Yeah, the error code will be saved in the ECU.
When these "gremlins" happen, the first thing they usually do is:
A) Look a the code and diagnose. Then R/R as needed. (usually a sensor or sending unit).
B) If problem persists they will want to replace the ECU.
Hope this helps. It should be covered under your factory warranty.
#729 of 731 Re: electric problems and then some [cski]
Mar 20, 2013 (9:59 am)
Thanks CSKI- there was no code saved, however they saw "multiple communication failures across several ports" and performed 6 software updates. Hopefully probelm solved. No issues for the past week. Of course a bit frustrating since we just had it in one month ago for another electric problem...
#730 of 731 Re: 2011 Hemi hesitation/misfire problem [halo2]
Jun 30, 2013 (9:27 am)
I have a 2005 GC Hemi 5.7L. Bought it used 2 years ago with 90k. It has always done the hesitation at exactly 45mph if I try to hold this speed steady. I have done a lot of research on this engine and transmission. At first I thought it was the torque converter not locking up in overdrive properly since it always happens ay 45mph. Then after more research I also believe it has to do with the computer and the MPI. Since in theory the MPI should be starting to engage to cut the cylinders back from 8 to 4 at about the time the torque converter locks up to save fuel, I think it is a computer problem as well. I was going to take it to the dealer to see if any computer patches or upgrades might fix the hesitation but after reading this forum I see Jeep has not fixed the problem yet even as late as 2011. I too wonder when Chrysler will step up to fix the problem. I also wonder if some of the third party computers might eliminate this problem. A performance package might cut into my gas mileage but if it will fix the problem I might be interested in that solution. Don't get me wrong, It's a great vehicle. I love this GC. I've owned 5 Jeep GC's since 1994. 3 of those had over 300k miles when I sold them. I plan on keeping this one till then also. Hopefully the 45mph hesitation or misfire issue is fixed before I get 300k miles on this one too (it just turned over 125k).
#731 of 731 Re: 2008 Jeep Grand Cherokee Laredo 2WD losing power
Oct 28, 2013 (4:35 pm)
We have a 2008 Jeep Grand Cherokee Laredo 2WD with 68k miles on it. A month ago, we started having problems losing power on the Fwy. It would go all the way down to 25 mph while flooring the gas pedal. It happened intermittently. Then it wouldn't go higher than 25 mph with the engine light coming on now and then. We were very worried that it was the Transmission. We had an extended warranty and were just hoping the repair would be covered. Gladly to say, today the mechanic at the dealership said it was the "sensor in the transmission" that was causing all the problems. Only cost $200 copay of warranty and the rest covered under warranty. The "Electric Hydraulic Assembly" was also the problem. We were pleasantly surprised the warranty covered the big cost. Now we will have to wait and see if the car runs fine afterwards with no further problems. I will keep everyone posted.