Auto transmission not shifting intermittently

[WILDHOBO]

I just purchased a jeep gladiator and I’m having the same problem 3,500 miles on it now. Does anybody know how to fix this? I don’t want to keep taking it to the dealer over and over. If I can help them that would be awesome.

That’s been I while. I’ve learned that this is a high rpm torque range engine. And when you’re in off road plus, you’re moving tile shift points into even higher rpm ranges. I think it’s normal. At 30,000 miles now, I’ve had no problems with it.

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[In3briatedPanda]

as the original poster I will update what my experience has been since posting this.

Im almost to 10k miles now and have not had this issue happen in the last 5k miles. the dealer has looked twice and 'could not duplicate'.

IDK if trans loosened up or it has learned my habits, but it doesnt hang up in gears anymore.

 

[D harrison]

as the originally poster I will update what my experience has been since posting this.

Im almost to 10k miles now and have not had this issue happen in the last 5k miles. the dealer has looked twice and 'could not duplicate'.

IDK if trans loosened up or it has learned my habits, but it doesnt hang up in gears anymore.

as the originally poster I will update what my experience has been since posting this.

Im almost to 10k miles now and have not had this issue happen in the last 5k miles. the dealer has looked twice and 'could not duplicate'.

IDK if trans loosened up or it has learned my habits, but it doesnt hang up in gears anymore.

I took it into the Dealer, they are changing the camshaft sensor. Hopefully this works.

 

[Muhanad]

My 2021 Sport S has 35" tires and about 21000 miles. Mine started doing this after the tire install, so I re-flashed it several times but it still happens. Generally its at higher speeds or when towing. The truck wants to stay in 5th or 6th gear with rpms at 3500. The temperature doesn't seem to effect mine. I do notice that sometimes after I turn the truck off and restart it, it shifts better. I was thinking that maybe a reggae to 456 may help, but now Im not so sure.

Reprogramming after install 35s

 

[Muhanad]

2021 max tow with 2221 miles. 35's and a stinger bumper is all that i have done. I used jscan to program my tires.

Twice now Ive been under full throttle and the Jeep will not shift to the next gear nor will it downshift.... and will just hang at the high rpms.

Yesterday the car idled for about 15 minutes, it was around 40 degrees outside. I went to accelerate into traffic, full load acceleration, and it hung at 6k rpms in second gear just SCREAMING AT ME. I left off the throttle and it still would not shift up or down and was just idling down like I was driving a manual. Thankfully I was coming to my turn regardless and once i slowed down to stop it shifted to first. It shifted fine the remainder of the drive home (the whole 8 miles). I moved the shifter into manual mode and right back into D and it still would not shift out of second. I wish I had bumped it up while in manual to see if i could force it to shift up.

I had a previous experience of being full throttle going up hill and it did this in fourth gear, just hung and would not shift down or up. Once it did shift down (by slowing down) it was a hard shift but that was 1k miles ago and it never happened again.

I started paying attention to my trans temps after the fourth gear hang up and noticed that the only common denominators were full throttle acceleration and the trans temp was under 100 degrees F. Seems like my commute of 8 miles isnt enough time for the trans to get to operating temp and Im wondering if my issue isn't directly tied to that.

I was not towing anything, have not towed anything.

Curious if any other member has had a similar issue. I tried the search feature but I only see manual trans issues, maybe i picked the wrong search words.

I plan on bringing it up at my first LOF unless it gets worse by then.

My 21 mojave same issue after installing 35s ko2
But no reprogram baybe when I program issue gone

 

[RickF]

My 2020 is at the dealer for this issue at 54k miles. It slams into 4th and sometimes will not go into 4th at all, staying stuck in 3rd until I turn it off and try again. Then it started slamming hard into reverse, too. They have ordered a whole new transmission under warranty and are only waiting for a bracket to start the replacement.

 

[AstroZombie]

same here

 

[Minty JL]

Just some food for thought.

My '23 JTM is at 12,800 miles now. I programmed the tire size with the Tazr.

After discussion with a buddy of mine that also has a '23 JTM, we both observed what felt almost like a misfire but during light load at shift points. So he took his Autel and went through a TPS relearn and a transmission shift relearn.

Its a million times better now. So find a buddy that has one and do a relearn; takes about 6 minutes. I'm waiting for the holidays to buy my own Autel.

 

[ShadowsPapa]

Just some food for thought.

My '23 JTM is at 12,800 miles now. I programmed the tire size with the Tazr.

After discussion with a buddy of mine that also has a '23 JTM, we both observed what felt almost like a misfire but during light load at shift points. So he took his Autel and went through a TPS relearn and a transmission shift relearn.

Its a million times better now. So find a buddy that has one and do a relearn; takes about 6 minutes. I'm waiting for the holidays to buy my own Autel.

JSCAN, and possibly AlfaOBD should do such a thing.

I've found various references, and have seen it in JSCAN itself. Not positive if it's for the 8 speed or not.

 

[Mudnyeri]

2020 with 47K miles. In for a new transmission. Kept getting stuck in 3rd gear.

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