Gear Slips on Automatic Transmission

wilyuhm said:

I have a 2011 JKUR with 193k miles on it. Just recently I was driving and my Jeep would slip out of 4th gear. It corrected itself while driving, just to do it again. I pulled over at the first chance I had, and checked my transmission fluid level. Everything seemed good no problems (I checked the level while in park and the engine running). I turned off the Jeep and checked for any codes, but nothing came up. Once I started it back up, I was able to drive home without any problems.

Has anyone had this problem before? If so what was the solution to fix it? Thanks in advance for the assistance.

Wil

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wilyuhm said:

I have a 2011 JKUR with 193k miles on it. Just recently I was driving and my Jeep would slip out of 4th gear. It corrected itself while driving, just to do it again. I pulled over at the first chance I had, and checked my transmission fluid level. Everything seemed good no problems (I checked the level while in park and the engine running). I turned off the Jeep and checked for any codes, but nothing came up. Once I started it back up, I was able to drive home without any problems.

Has anyone had this problem before? If so what was the solution to fix it? Thanks in advance for the assistance.

Wil

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Primo82 said:

I have not experienced anything like this with my jeep.

I did have a ford fusion that started doing this. The master control valve body was taking a shit. Does your tranny fluid look normal? When valve bodies go out it starts to burn the fluid (turns really dark). Something to check maybe, hope it helps.

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cozdude said:

The first most simple fix I would suggest is a full fluid flush and filter change if you have never done one or it’s been a long time.

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jmayps said:

Mine recently started doing the same thing. I have a 2013 JK auto. Started after having a throttle body replaced and a transmission fluid and filter change. Happens while going up hills and at lower RPMs. Haven’t figured out what the issue is yet.


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wilyuhm said:

I spoke with a buddy of mine that use to work at an off road shop. He mentioned to check a vacuum line that connects to the transmission. Not to sure where it is though. Going to check my tranny later this afternoon.


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wilyuhm said:

That is a good thing. I have not changed it in a little bit. possibly around 40k miles. Thank you for the help.


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