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Old 02-19-2015, 07:47 AM
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4WD overheating

Good morning, I am writing to you as I sit at the jeep dealership in cockysville Maryland waiting to see the outcome of my jeeps inspection. I had it in for service last week and everything was running great, got the new update and now it's s train wreck. Two major issues, the first is the hesitation when mashing the gas. I have almost been killed 2 or 3 times in the last week because of it. The second issue, the more alarming one is the 4WD overheating. I know this has been a topic here about a year ago and was wondering if anybody has received a firm answer on what the cause of the issue.

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Old 02-19-2015, 09:42 AM
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Re: 4WD overheating

This is exactly why I don't believe in doing updates or flashes just because they are out. My Cherokee Limited (3.2L ADII) is a November 2013 build and I have never had an update/flash done to it. It runs just fine and I am not about to screw it up.
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Old 02-19-2015, 10:00 AM
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Re: 4WD overheating

I agree 100 percent. I didn't request the update, they came out and said it was done and they gave it the latest update. So they reset the rom and said the warning went off because they think, lol, that when I was driving inroad in the snow and mud that when the system was engaging the 4wd I mashed the gas at the perfect time which threw the warning light. Pretty sure I don't think that's correct but I will give hem the benefit of the doubt because they have been great about getting me in quick and not making me wait for service.


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Old 02-25-2015, 07:50 AM
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Re: 4WD overheating

I had the same message a few weeks ago, and was told by the dealer that the code came up in error. The error code was for a trans case clutch overtemp condition. The TCM was reflashed with the latest code and the message has not returned. While they were flashing the TCM, they also performed 14-040 for the trans shifting issues, and I have to say that the TH has never shifted better. So far, all is well.
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Old 02-25-2015, 08:34 AM
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4WD overheating

Follow up on original post.....So the verdict was and error code caused by me mashing the gas hard at the same time there was slippage with the tires at the same time the 4wd was trying to engage. He said all that caused the overheat error, mmmmmm hmmmmm. He flashed it and it's been fine since. I will say that the shifting is different since the update, no quite as hard and very smooth, just feel there is a little hesitation when wanting to get on it if needed. I will also day my gas mileage has improved with the update.


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Old 02-25-2015, 05:02 PM
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Re: 4WD overheating

I will agree if its not broken do not flash it. My dealer told me that last year.
But there is that new RO1, dated 2/2015.
It replaces all TSBs in this area. It is being issued to replace existing software for the TCM and PCM on basically all Cherokees built from 6/17/13 through 12/01/2014.
It also requires the drive and reprogram by 2 techs on Cherokees with over 50 miles on them.
The term they use: To address potential durability issues with the transmission.
I think I will trust my dealer with that call as to what is needed.
I have a 12/11/13 build with no updates to date. Has been running perfect.
The durability issue has me concerned.
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Old 02-26-2015, 09:39 AM
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Re: 4WD overheating

Quote:
Originally Posted by Jeepster910 View Post
I will agree if its not broken do not flash it. My dealer told me that last year.
But there is that new RO1, dated 2/2015.
It replaces all TSBs in this area. It is being issued to replace existing software for the TCM and PCM on basically all Cherokees built from 6/17/13 through 12/01/2014.
It also requires the drive and reprogram by 2 techs on Cherokees with over 50 miles on them.
The term they use: To address potential durability issues with the transmission.
I think I will trust my dealer with that call as to what is needed.
I have a 12/11/13 build with no updates to date. Has been running perfect.
The durability issue has me concerned.
My service manger advised me not to do the R01 until when or if I actually need it. As I said before my transmission is just fine now with no flashes/TSBs done and I am not about to screw it up. Besides I have a lifetime Mopar service contract. If anything ever does go wrong with the transmission it is covered.
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Old 02-26-2015, 11:28 AM
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Re: 4WD overheating

Quote:
Originally Posted by macfan View Post
This is exactly why I don't believe in doing updates or flashes just because they are out. My Cherokee Limited (3.2L ADII) is a November 2013 build and I have never had an update/flash done to it. It runs just fine and I am not about to screw it up.
I've been thinking about the same thing. To date my hemi runs great and ever since the TSB came out that supposedly would remember the eco setting i've been to dealer to attempt to do it but i'm thinking i maybe should not. Why mess with it. As it is i'm already used to the eco setting and mine actually has some giddy up. At least for me.

So i agree, if you don't have any issues don't do any updates just cause.
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Old 03-02-2015, 03:52 PM
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Re: 4WD overheating

Quote:
Originally Posted by macfan View Post
My service manger advised me not to do the R01 until when or if I actually need it. As I said before my transmission is just fine now with no flashes/TSBs done and I am not about to screw it up. Besides I have a lifetime Mopar service contract. If anything ever does go wrong with the transmission it is covered.
Could not have said it better!
A good dealer will give you the best advice. Mine does not do anything that is not needed. Better yet they will take the time to explain why. Mine did that with all the TSB talk a year ago.
I am in the same boat as you. 12/11/13 build no updates to date and a Lifetime Mopar contract.
Still the issue in the RO1 of Durability is an issue. But again if a Cherokee has been having shifting/ clutching problems there will be durability issues.
As I was told last Spring, "any issues (transmission) bring it right in and we will take care of it".
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Old 03-17-2015, 04:39 PM
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Re: 4WD overheating

Well, so I had the 4WD Overheated message about a month ago and after a flash or two, all was well. On Saturday, while on the freeway, the message showed up again for a few seconds. Also, the trans has been "hanging" in 3rd while downshifting and it was not doing that before the flash.

I have an appointment on Monday for the recall, 1-year oil change and this 4WD overheated message. I am also going to state that the trans was shifting fine before the flash, and now it's not. We'll see what they have to say...
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