Post 26. 2013 JKU Auto-Trans acting strange since ATF change. - Jeep Wrangler Forum
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Old 09-07-2017, 09:08 AM
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Post 26. 2013 JKU Auto-Trans acting strange since ATF change.

Ive noticed my trans seems like its searching for the right gear and occasionally stuttering slightly. Didnt have any issues before getting the ATF change but did so due to high mileage/towing.

Has anyone else experienced issues after changing the ATF? Thanks in advance.


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Old 09-07-2017, 10:30 AM   #2
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No issues with mine, had it changed at around 100k miles, check your dipstick and make sure they filled it out correctly, it might be missing some fluid.
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Old 09-07-2017, 11:34 AM
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Post 26. 2013 JKU Auto-Trans acting strange since ATF change.

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Originally Posted by rsmwrangler View Post
No issues with mine, had it changed at around 100k miles, check your dipstick and make sure they filled it out correctly, it might be missing some fluid.


Ill check again, but at first check it looked fine. Thanks.


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Old 09-07-2017, 11:47 AM   #4
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It is a well known fact that waiting to change your transmission fluid until you've reach high miles can in fact cause more harm than help (not just in Jeeps, but all vehicles). Reason being is the amount of carbon that is suspended in the fluid that the transmission becomes dependent on - and putting in fresh fluid removes that and thus, results in the behavior you are describing.
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Old 09-07-2017, 02:19 PM
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It is a well known fact that waiting to change your transmission fluid until you've reach high miles can in fact cause more harm than help (not just in Jeeps, but all vehicles). Reason being is the amount of carbon that is suspended in the fluid that the transmission becomes dependent on - and putting in fresh fluid removes that and thus, results in the behavior you are describing.


Obviously Fiat-Chrysler didnt know this when they suggested changing ATF at 100,000 (if I'm not mistaken, I dont have a manual in front of me). I did mine well in advance of Jeeps recommendation. Someone call Sergio!


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Old 09-07-2017, 02:30 PM   #6
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Obviously Fiat-Chrysler didnt know this when they suggested changing ATF at 100,000 (if I'm not mistaken, I dont have a manual in front of me). I did mine well in advance of Jeeps recommendation. Someone call Sergio!


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This is exactly the problem. On my wife's highlander, they call it a "lifetime fluid" meaning they dont suggest changing it. I even tried to get the dealer to do it at 60K - and they said it wasn't necessary. Damned thing had no dipstick to check - and was a royal PITA to have checked by the dealer.

But - this is a common problem - you will find many here who say to change it at 30K intervals to prevent this issue - but, that's not what Jeep "recommends"

In fact - Jeep suggests not changing it at all unless you do towing, taxi, fleet type driving - and if you do, to change it at 60k intervals.
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Old 09-07-2017, 04:21 PM   #7
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All I can add is that a friend who has owned a trans. shop for over 25 years has always told me that auto trans fluid/filters should be changed no later than every 50K miles, depending upon use. More often if it's severe duty. Going by what Chrysler "recommends" should get an owner through the powertrain warranty period, but after that he will more often than not have a new customer. Auto manufactures basically have maintenance schedules in place to get owners past their limited warranty periods.
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Old 09-09-2017, 01:48 PM
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Post 29: I suppose the silver lining is I have 14,000 before the powertrain warranty runs out. (And lifetime maxcare after that.... if whatever gives up the ghost is covered) Im hoping it throws a code soon. The more I drive it post-op it seems better though.


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