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Unread 10-30-2009, 01:32 PM   #1
deeincitti
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92 YJ transmission noise

Hey all,

Looking for some feedback on my problem.
I have a 92 YJ 2.5L 4Cyl with the AX5 transmission and when in neutral and clutch released(up position) and at idle I hear and feel a rumble/grinding. When I push in on the clucth it goes away. But, when coasting in neutral with the clutch released this noise does not happen. What could this be? I am thinking it's the throw bearing, but wouldn't the noise still happen when I am coasting in neutral as well? Thanks all

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Unread 10-30-2009, 02:33 PM   #2
MJMPC
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Have you checked the oil level in your trans ?
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Unread 10-30-2009, 02:38 PM   #3
deeincitti
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No not yet. I will be doing a fluid change this weekend, but if that is not the case then what else could it be?

Deryck
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Unread 10-30-2009, 02:52 PM   #4
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Originally Posted by deeincitti View Post
No not yet. I will be doing a fluid change this weekend, but if that is not the case then what else could it be?

Deryck

Could be bad bearings in the trans .
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Unread 10-30-2009, 02:58 PM   #5
5.7YJ
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Could be bad bearings in the trans .
I agree, could be your input shaft bearing.
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Unread 10-30-2009, 03:19 PM   #6
deeincitti
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Only happens in neutral when at a dead stop and idle. Every other senario does not produce the sound. (eg. while in gear and moving, in neutral while moving or coasting). I guess the only thing to do is check the fluid levels. If that doesn't work then it defenetly needs to come off anyways. I just want to be prepared if I do have to take it off.

Actually it is due for a replacement or rebuild anyways. Almost 300,000kms on it and I do believe everything is original on the transmission. LOL!! This jeep has been very, very good to me with respect to my bank account even though I beat the crap out of it
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Unread 10-30-2009, 03:23 PM   #7
5.7YJ
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It's amaizing you've gotten that many miles out of an AX5!
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Unread 10-30-2009, 03:37 PM   #8
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I'm inclined to think throwout bearing. The fact that you can't hear it/feel it while coasting in neutral might be caused by just being distracted by the other things associated with a moving vehicle.

Definitely do an oil change on the gearbox and pay close attention to the fluid quality/condition of the old fluid, but my money still rides on the throwout bearing.

What oil are you planning on putting in the tranny?

Max
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Unread 10-30-2009, 03:40 PM   #9
5.7YJ
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Your name looks good in green Max, matches the tag!
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Unread 10-30-2009, 03:41 PM   #10
deeincitti
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I am starting to feel lucky about it. Ever since I have been looking into this problem all I have been reading is how weak and crappy the AX5 is. Yes it may be weak, but the engine is pretty weak to boot. So they compliment each other pretty well There were issues with my AX5 ever since I purchased the jeep 5 or 6 years ago(eg. syncro problems and just being really noisy), but this is the first problem where I am actually concerned about the AX5 breaking down and having to do some work to it. If it is a bearing then it won't take long for that bearing to disintegrate I know that much. I will probably top up fluids and drive it until it needs replacing. It will be a good work out for my clutch leg at a red light.
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Unread 10-30-2009, 03:42 PM   #11
5.7YJ
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Do a fluid change like Max said and pay attention to the old fluid, it should tell you a lot.
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Unread 10-30-2009, 03:48 PM   #12
deeincitti
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Quote:
Originally Posted by Mean Max View Post
I'm inclined to think throwout bearing. The fact that you can't hear it/feel it while coasting in neutral might be caused by just being distracted by the other things associated with a moving vehicle.

Definitely do an oil change on the gearbox and pay close attention to the fluid quality/condition of the old fluid, but my money still rides on the throwout bearing.

What oil are you planning on putting in the tranny?

Max
The noise this thing is making could not go unnoticed by other things happenning while moving while coasting. Believe me!! LOL! But I will definetly take it into concideration for sure.

I am thinking of putting Pennzoil Syncromesh in the tranny, but someone had told me just to use a 80/90 gear oil. What do you think?
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Unread 10-30-2009, 03:49 PM   #13
5.7YJ
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Don't AX5 transmissions use ATF?
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Unread 10-30-2009, 03:52 PM   #14
deeincitti
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I don't think so!?!?! The Haynes book says 75/90 GL. But I am open to suggestions.
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Unread 10-30-2009, 03:56 PM   #15
5.7YJ
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Sorry, I must be thinking about the T5 Ford tranny.
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