Need help, 2023 Mojave 6m/t 37s service transmission and clutch overheating

[Dbatchler91]

I recently bought a 2023 Gladiator Mojave with the manual transmission. I put around 2800miles on it and everything was great. I decided to put 37s on and I also bought a Taser module to correct for the increased tire size. I drove with the 37s without using the Taser for around 200 miles with no issues. Plugged the Taser in corrected the tire size to 36.7" and drove it about 20miles before I got a "Service transmission" notification. I turned around and tried to get the Jeep back home but the power was being cut, shortly after I started getting the clutch overheating notification.

I took the 37s off and unmarried the module and took it to the dealership. The dealership told me that they cleared the fault and it drove fine no issues, later he told me that the clutch overheating alarm is caused by poor driving or abuse. They also said they could possibly deny any warranty claims due to this. Take it for what it is but I have always had manual vehicles and heavily modified manuals, so I am not an inexperienced driver. I did not abuse the vehicle in any way and when I got the alarm I was cruising around 50mph.

My question is should I try to put the 37s back on with the Taser and try again? Or am I in the wrong and the manual cant handle the 37s? I thought 37s on a Gladiator was a common thing?

Really disappointed in the situation and stuck on if I should cut my losses and sell the wheels and tires or try again?

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[JerseyMark]

Your dealership is full of it about the clutch alarm. That alarm was added due to inherent weakness of the clutch/pressure plate. So, it doesn't necessarily mean it was driven in a poor manner. It was a sort of bandaid fix to prevent clutch overheating. In fact, your Jeep should have a recall on it to replace the clutch and do another software update. I'm surprised your dealership didn't recommend that you have the recall done.

Having said all that... The combo of 37s with 4.10 gears and the manual trans gearing, may be leading to more stress on the clutch due to need to allow for more clutch usage to prevent stalling, etc.... An option to help with this would be to regear to a better matched ratio like 4.88s or 5.13s. Personally, I wouldn't go to 37s without a regear.

 

[Dbatchler91]

Is the alarm generated from an actual sensor or is it calculated? Weird thing is, I never smelled the clutch during the whole situation.
I know there was a stop sell on the manuals and I bought mine after that (about 2 months ago), so I assume that the clutch was replaced and the flash was done.

 

[JerseyMark]

Is the alarm generated from an actual sensor or is it calculated? Weird thing is, I never smelled the clutch during the whole situation.
I know there was a stop sell on the manuals and I bought mine after that (about 2 months ago), so I assume that the clutch was replaced and the flash was done.

I believe it is a sensor based on Transmission temp, but I am not sure.

 

[AustinL911]

I believe it is a sensor based on Transmission temp, but I am not sure.

I don't believe the 6MT has a temp sensor. My assumption is that the confuser tries to calculate slippage via shaft speeds vs gear selected and wheel speeds, which obviously your 37s will affect. If you haven't already, I'd take an actual measurement of your tire diameter and input that into the Tazer, then try again. If you've already done that, then it probably isn't you and its the stupid clutch or computer.

 

[Banned]

That's a really sharp truck.

 

[Gregj]

I have a Wrongler with the 6 speed and 37’s and so far no issues. Over on the Wrangler Forum there are quite a few with this issue and the common denominator seems to be changing the tire size with the Tazer. I programmed mine for the tires with JScan and took it in for the clutch recall with the 37’s.

I have put about a thousand miles on it since the recall with no problems. A long read but lots of information about this issue.
Clutch Recall thread

Gregj

 

[Birds83]

I have a Wrongler with the 6 speed and 37’s and so far no issues. Over on the Wrangler Forum there are quite a few with this issue and the common denominator seems to be changing the tire size with the Tazer. I programmed mine for the tires with JScan and took it in for the clutch recall with the 37’s.

I have put about a thousand miles on it since the recall with no problems. A long read but lots of information about this issue.
Clutch Recall thread

Gregj

Interesting thought on JScan vs tazer. You would think that they would both do the exact same in the computers……

 

[Escape.idiocracy]

Do you hover your left foot on the clutch? This isn’t a personal stab, I have just found that a lot of folks hover their foot vs complete removal.
I do also support the re-gear to 5.13’s. 4.88’s will due but 5.13’s give that nice little bit of extra… and the highway rpm difference isn’t enough to die on.

 

[PuddleJumper]

I recently bought a 2023 Gladiator Mojave with the manual transmission. I put around 2800miles on it and everything was great. I decided to put 37s on and I also bought a Taser module to correct for the increased tire size. I drove with the 37s without using the Taser for around 200 miles with no issues. Plugged the Taser in corrected the tire size to 36.7" and drove it about 20miles before I got a "Service transmission" notification. I turned around and tried to get the Jeep back home but the power was being cut, shortly after I started getting the clutch overheating notification.

I took the 37s off and unmarried the module and took it to the dealership. The dealership told me that they cleared the fault and it drove fine no issues, later he told me that the clutch overheating alarm is caused by poor driving or abuse. They also said they could possibly deny any warranty claims due to this. Take it for what it is but I have always had manual vehicles and heavily modified manuals, so I am not an inexperienced driver. I did not abuse the vehicle in any way and when I got the alarm I was cruising around 50mph.

My question is should I try to put the 37s back on with the Taser and try again? Or am I in the wrong and the manual cant handle the 37s? I thought 37s on a Gladiator was a common thing?

Really disappointed in the situation and stuck on if I should cut my losses and sell the wheels and tires or try again?

Dealer is more full of it than a 2 week old job site porta john. The issue you have here is that the clutch is just not strong enough in some way for your application. There are people having the same issues still on stock 33s. You could regear higher but that would just hide the problem not fix it. Your kinda approaching the aftermarket clutch territory to be in the green true and well. Personally I got the auto for the tow capacity but also learned you can't beat on the gladiator manual like you could on old TJs and 4Rs. So i opted out. If I can't do a burnout or any other clutch dump tom foolery every now again, it ain't worth it.


edit: one thing to note, The clutch sensor operates off of counting wheel rotations, if the math don't add up. It assumes slippage even if there is none. Make sure your measuring your true tire size and not just inputting 37s. Worst case, leave it on the stock tire size and adjust your speed accordingly.

 

[Gregj]

Interesting thought on JScan vs tazer. You would think that they would both do the exact same in the computers……

They do, sort of. The changes Tazer makes are dependent on the Tazer remaining married, JScan changes are “permanent” until changed again. Problems seem to be happening when folks are un marrying their Tazer and having the software updated and then remarrying the Tazer.

My JL has had all changes done with JScan and has been through all three clutch recalls, two gear changes and at least four tire size changes without any issues.
Gregj

 

[FijiKid]

Had exact same scenario and issue happen. Dealer Appt tomorrow.

Although a guess, I am leaning towards being a glitch with Tazer JL Mini. Once dealer confirms all is well (hopefully) removes warning … I am going to buy / use Jscan for tires and gears.

I don’t have my stock wheels. Hope I don’t get a bunch of BS because it has 37s on it.

Read also that clutch EPROM (dont even know what that is…) needs to be reset. Going to suggest when they have my truck tomorrow.

 

[Gatorized]

edit: one thing to note, The clutch sensor operates off of counting wheel rotations, if the math don't add up. It assumes slippage even if there is none. Make sure your measuring your true tire size and not just inputting 37s. Worst case, leave it on the stock tire size and adjust your speed accordingly.

Because the sensor operates off wheel rotation, you may want to check that all tires are the same circumference… and all tire pressures are equal. It would be unfortunate to have this issue be due to a single wheel rotating faster or slower than the others.
wonder if there is a way to disable the sensor - it seems to be more problem than solution.

 

[OHJeeper]

I have a 6MT with 37's since the day I drove my JT off the lot - 26,000 miles and I just re-geared this past winter with 24k-ish miles and never an issue with overheating clutch or Service Transmission warning, including some wheeling, with the stock 4.10.

There -is- a procedure for the manual when you go with bigger tires, though. Not only do you have to program the tire size but also perform a re-learn procedure so that the transmission is expecting the input/output shafts to be turning the correct speeds for the gear you're in. This also has to be done with a re-gear. If you have not tried this, I'd give it a shot:

• Reboot PCM with JSCAN (there is a similar menu for Tazer, I just don't have one)
• Remove negative terminal from MAIN and AUX batteries for one minute
• Perform 2 sleep cycles
• Start vehicle
• Get up to speed between 40-80 MPH in 6th gear for 20 seconds
  • APP > 0.392
  • Flywheel Torque > 75Nm
  • (If you're doing 50-ish MPH or more, these should be met with no problem)
• Perform 2 sleep cycles
• Delete any CEL codes

Hope that helps!

 

[PuddleJumper]

Because the sensor operates off wheel rotation, you may want to check that all tires are the same circumference… and all tire pressures are equal. It would be unfortunate to have this issue be due to a single wheel rotating faster or slower than the others.
wonder if there is a way to disable the sensor - it seems to be more problem than solution.

yeah its pretty dumb. some users have no issue, others absolutely plagued. I wonder why Jeep wouldn't have that disable by turning TC off and also giving it more wiggle room by reading its own's tire psi and allowing lee way for a few psi in difference.

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