Gladiator manual transmission crunch sound / noise when shifting

[SCAT PAK]

Been watching this thread. I have a 2020 Rubicon Gladiator with the 6 speed manual. 10k plus miles on her. I hear a rattling noise when I shift between 1,2 and 3. Drives me nuts! Had a recall for the clutch and still get a rattle. Not a crunch, but a rattle. Any guidance?

Been watching this thread. I have a 2020 Rubicon Gladiator with the 6 speed manual. 10k plus miles on her. I hear a rattling noise when I shift between 1,2 and 3. Drives me nuts! Had a recall for the clutch and still get a rattle. Not a crunch, but a rattle. Any guidance?

I have a 2021 Gladiator, 6 speed manual, this clutch linkage rattle at higher RMPs in 1st, 2nd and 3rd started at aprox 5000k. I reported it to the dealer who stated it is simply clutch linkage rattle/vibration. No solution given..... It drove me nuts so I continued to look for a solution. I know when the rattle starts, I can depress the clutch about 1/2 inch and the sound disappears, which tells me it is not the throw out bearing. I lubricated the linkage associated with the clutch pedal inside the cab. It damped the sound for a day, not 100 Percent. I recently decided to crawl under the Jeep and spray all linkage, particularly near the bell housing and shifter linkage/cables with a thick rust proofing spray and also brushed it with thick grease everywhere I could reach. It appears to work! Give it a shot, let me know your findings/results. Cheers - SCAT PAK

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[Tali Hunter]

@JeepCares Can you share a video of an expert driver and the normal amount of noise that should be expected with a manual?

Yeah okay Jeep care. Let us just go hit up Mario Andretti or Bubba Watson to drive our vehicles to prove that these noises are normal for the drivetrain. I have same noise, a case with Jeep care and still have yet to hear a logical explanation of why it makes the noise. Let us not forget we humans built these things and should be able to explain why! I had to dealerships so far tell me they don’t know why it’s normal. Chrysler has ruined Jeep. This is a joke and I smell a technical bulletin coming quick like.

 

[Tali Hunter]

Just got my new glad tranny. Fucking love it. Smooth ride. Better in MPG. Great with traffic. Idk if anyone else had this problem. But releasing the clutch on 1st. Crunch noise. And shifting from 1st gear to 2nd its make this crunch noise. ( not grinding)

Anyone else got this problem

Been driving manual 10+ years
Taken it to the dealer and they stated the crunch sound is normal. And it's just the way the car runs. Sounds like some bullshit to me.

I have this problem my friend. It is a childish incompetent diagnosis from the dealers. I took mine (22 Gladiator Mojave 6speed 3.6L, no mods) I filed a case with BBB and Jeep Care. They gave me the whole “sorry but until a certified Jeep technician finds something, we can’t do anything.” So, being a smart ass former marine I said if it’s normal as they say; then explain logically why it’s physically making that noise. The foreman and the lead tech said we don’t know. Haha It’s a joke man. I worked for jaguar/Land Rover for a while and in our F types and defenders that were manual, I’ve never heard this shifting noise being called normal. Let’s not forget in 2020 there was a recall for the clutch and I believe the disc for cracking and catching fire. I think the engineers Chrysler has need to investigate this seriously so we can move on and enjoy our jeeps. They also told one Jeep owner to have a professional driver drive the vehicle and let them know the outcome. Haha I’m personally going to call in a favor and have a person I know who is Jeep certified, to solve this issue. After that, a mechanical engineer to verify the techs diagnosis. Us gladiator people with this manual transmission shifting issue need to rise up and unite and demand Chrysler to rectify this error.

 

[ShadowsPapa]

Yeah okay Jeep care. Let us just go hit up Mario Andretti or Bubba Watson to drive our vehicles to prove that these noises are normal for the drivetrain. I have same noise, a case with Jeep care and still have yet to hear a logical explanation of why it makes the noise. Let us not forget we humans built these things and should be able to explain why! I had to dealerships so far tell me they don’t know why it’s normal. Chrysler has ruined Jeep. This is a joke and I smell a technical bulletin coming quick like.

But you posted in the other thread that was discussing a rattle, not a crunch.
So which is it? The rattle that the other thread you posted in is all about, or a crunch when shifting?
You're gonna confuse the folks in the "rattle" thread by bringing in a totally different issue, different sound.
The rattle in the other thread is extremely specific and happens only at specific times, gears and RPMs. The RPM ranges seem to be around 3,000 for the rattle in the other thread.
Sounds like you don't have that sound at all.
Which sound is it?
Crunch sound being discussed here,
or the rattle sound similar to an engine ping, in the other thread?

 

[Tali Hunter]

But you posted in the other thread that was discussing a rattle, not a crunch.
So which is it? The rattle that the other thread you posted in is all about, or a crunch when shifting?
You're gonna confuse the folks in the "rattle" thread by bringing in a totally different issue, different sound.
The rattle in the other thread is extremely specific and happens only at specific times, gears and RPMs. The RPM ranges seem to be around 3,000 for the rattle in the other thread.
Sounds like you don't have that sound at all.
Which sound is it?
Crunch sound being discussed here,
or the rattle sound similar to an engine ping, in the other thread?

My bad. The crunch/clunk sound is what I have.

 

[Maximus Gladius]

My bad. The crunch/clunk sound is what I have.

Any body think it’s the synchro gear malfunction? Perhaps a full synthetic oil or upgrade to …say, Motul or something??

 

[Tali Hunter]

Any body think it’s the synchro gear malfunction? Perhaps a full synthetic oil or upgrade to …say, Motul or something??

Ask shadow papa. according to him we are supposed to accept the noise and deal with it until shit does start to break.

 

[Tali Hunter]

Ask shadow papa. according to him we are supposed to accept the noise and deal with it until shit does start to break.

Never made the noise when I first purchase the vehicle in September 2022 last year. Build date was April 22. My buddy bought identical one and his doesn’t make the noise. Imagine that.

 

[IanNubbit]

If

My bad. The crunch/clunk sound is what I have.

the Clunk, Clunk, Clunk sound is what y’all are referring to, and it happens when say you quickly put you clutch to the floor, like very fast, while accelerating in 1st or 2nd, that is

normal.
Now heres why, since I know thats what yall are looking for

while this is obviously a very failed clutch, the brand new one did the same and I opened a Star case the moment I found it to see whats up and if this massive amount of rotational play is normal. Basically the short answer was its normal and made that way to prevent harsh engagements to the friction material

In my experience it makes every engagement harsh, but it at-least explained to me what that noise was and nothing to be worried about. Just ANOTHER reason to swap the clutch out

 

[Tali Hunter]

If

the Clunk, Clunk, Clunk sound is what y’all are referring to, and it happens when say you quickly put you clutch to the floor, like very fast, while accelerating in 1st or 2nd, that is

normal.
Now heres why, since I know thats what yall are looking for

while this is obviously a very failed clutch, the brand new one did the same and I opened a Star case the moment I found it to see whats up and if this massive amount of rotational play is normal. Basically the short answer was its normal and made that way to prevent harsh engagements to the friction material

In my experience it makes every engagement harsh, but it at-least explained to me what that noise was and nothing to be worried about. Just ANOTHER reason to swap the clutch out

I agree upgrade the clutch. It’s just mine isn’t just doing it when depressing the clutch. It’s doing when releasing the clutch in 1 2 3 and 4 gears. Now, you could rule out driver error or releasing to quick because 4 different Jeep techs drove it and. Edifies the noise. Also in third gear at about 3-3.5 rpm you can literally hear the same noise when just flooring the gas, no clutch at all. It’s weird man. Idk why they say this is normal when other ones don’t do it. Also, I don’t understand why the techs can’t give me a reason that makes sense. Also, I forgot to mention the burning clutch smell every once in a while in the higher rpm range. I get what you’re saying though. We test drove a 22 rubicon gladiator 6 speed and it didn’t do it. Brand new with 50 miles on it. Test drove a mojave like mine brand new and it did the same thing!! Weird right? Time will tell. I just don’t believe in waiting for something to break or become worse rather than preventative maintenance.

 

[OHJeeper]

If

the Clunk, Clunk, Clunk sound is what y’all are referring to, and it happens when say you quickly put you clutch to the floor, like very fast, while accelerating in 1st or 2nd, that is

normal.
Now heres why, since I know thats what yall are looking for

while this is obviously a very failed clutch, the brand new one did the same and I opened a Star case the moment I found it to see whats up and if this massive amount of rotational play is normal. Basically the short answer was its normal and made that way to prevent harsh engagements to the friction material

In my experience it makes every engagement harsh, but it at-least explained to me what that noise was and nothing to be worried about. Just ANOTHER reason to swap the clutch out

THAT is the exact noise I have in mine, but like a few others on this thread I don't hear it when accelerating, it's when going slow like pulling in the garage, dropping my son off at school, in stop-and-go traffic, etc.

But what you posted hit the nail on the head for me.

Thanks!!!

 

[IanNubbit]

I agree upgrade the clutch. It’s just mine isn’t just doing it when depressing the clutch. It’s doing when releasing the clutch in 1 2 3 and 4 gears. Now, you could rule out driver error or releasing to quick because 4 different Jeep techs drove it and. Edifies the noise. Also in third gear at about 3-3.5 rpm you can literally hear the same noise when just flooring the gas, no clutch at all. It’s weird man. Idk why they say this is normal when other ones don’t do it. Also, I don’t understand why the techs can’t give me a reason that makes sense. Also, I forgot to mention the burning clutch smell every once in a while in the higher rpm range. I get what you’re saying though. We test drove a 22 rubicon gladiator 6 speed and it didn’t do it. Brand new with 50 miles on it. Test drove a mojave like mine brand new and it did the same thing!! Weird right? Time will tell. I just don’t believe in waiting for something to break or become worse rather than preventative maintenance.

That might be a different noise then what am describing. May be the exact same culprit, but if its doing it while no clutch is being used, and not when immediately accelerating or decelerating, especially if its more then once or twice. I will say theres no 5th shock (power hop shock) on the mojave and it is on all the other JT 6MT trims. Could maybe actually be a reason for that lol

 

[Tali Hunter]

That might be a different noise then what am describing. May be the exact same culprit, but if its doing it while no clutch is being used, and not when immediately accelerating or decelerating, especially if its more then once or twice. I will say theres no 5th shock (power hop shock) on the mojave and it is on all the other JT 6MT trims. Could maybe actually be a reason for that lol

Yeah, I think you’re on to something. So far it’s baffled a few dealers and their techs. Say it’s normal but don’t know why. I can’t wait to figure this out. It’s just hilarious how Chrysler operates when it comes to warranty work. All they have to do is spend a few bucks out of billions to tear one of these down. Like I said to someone earlier. Why does mine and other peoples Mojave’s and rubicons make these noises and others don’t. I’m having a hard time telling myself that it is normal drivetrain noise. It’s tempting to just pay out of pocket for a really good tech to solve this. Just don’t want to void my warranty if possible.

 

[OHJeeper]

if its doing it while no clutch is being used, and not when immediately accelerating or decelerating,

Question for you: are you saying the play/noise you showed in your video can happen just when accel/decel without the clutch being depressed? I am really curious, if so, because mine makes a very similar noise when coming up my driveway (hill) whether I use the clutch or not...

 

[Gatorized]

That might be a different noise then what am describing. May be the exact same culprit, but if its doing it while no clutch is being used, and not when immediately accelerating or decelerating, especially if its more then once or twice. I will say theres no 5th shock (power hop shock) on the mojave and it is on all the other JT 6MT trims. Could maybe actually be a reason for that lol

That 5th shock is not on ”all” 6MT‘s built. Some 6MT builds have them and some do not.

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