metal shearing sound
#1
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Location: Rich Square, NC. From Virginia Beach, VA
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Year: 1996
Model: Cherokee
Engine: 4.0
metal shearing sound
Alright yall, saturday night me and my coworker josh went muddin and once we got done and hit the road my 96 cherokee country started makin this metal shearing, nails on a chalkboard sound. I have no idea what is causing the sound. Sunday i replaced my upper ball joints and figured i'd atleast do a little trouble shooting and since i had the hub off i messed with the hub and no sound. I turned the axle shaft before i took it out and BAM! The sound is to be heard; yes this happens on both sides. I know it is from the transfer case foward, but deffently not the t-case gears as the sound does not deafen as i go from 2H-4H-4L; and i also have no loss 4 wheel drive. I'm a little stuck as to what else to trouble shoot to try to pin point the sound anyone have this issue before? If so what ended up being your problem or what could be my next step in trouble shooting?
Thanks in advance,
Redwolf
Thanks in advance,
Redwolf
#2
Seasoned Member
If it makes the noise when you turn the hubs by hand, try this to isolate the location:
Disconnect the front drive shaft from the differential. Now turn the hubs again. Does it make the sound? If yes, the issue is somewhere between your hubs and the differential input flange. If no, try turning the front drive shaft by hand. If it makes the sound, you know the issue is either in your double cardan joint or T-case. And if neither produce the sound, since you pulled the front DS U-Joint...then it might be that U-Joint.
Disconnect the front drive shaft from the differential. Now turn the hubs again. Does it make the sound? If yes, the issue is somewhere between your hubs and the differential input flange. If no, try turning the front drive shaft by hand. If it makes the sound, you know the issue is either in your double cardan joint or T-case. And if neither produce the sound, since you pulled the front DS U-Joint...then it might be that U-Joint.
#3
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Year: 1996
Model: Cherokee
Engine: 4.0
If it makes the noise when you turn the hubs by hand, try this to isolate the location:
Disconnect the front drive shaft from the differential. Now turn the hubs again. Does it make the sound? If yes, the issue is somewhere between your hubs and the differential input flange. If no, try turning the front drive shaft by hand. If it makes the sound, you know the issue is either in your double cardan joint or T-case. And if neither produce the sound, since you pulled the front DS U-Joint...then it might be that U-Joint.
Disconnect the front drive shaft from the differential. Now turn the hubs again. Does it make the sound? If yes, the issue is somewhere between your hubs and the differential input flange. If no, try turning the front drive shaft by hand. If it makes the sound, you know the issue is either in your double cardan joint or T-case. And if neither produce the sound, since you pulled the front DS U-Joint...then it might be that U-Joint.
Redwolf
#4
Seasoned Member
I wouldn't be too worried about it. Mud gets everywhere and into everything...that's why I personally avoid it like the plague!!
I would suspect some dirt got somewhere it shouldn't and by disconnecting the front DS, greasing, and reassembling you have cleared the problem up. Drive it around for a couple days and see what happens.
Betcha it's done and solved. If not, we're always here to help!
I would suspect some dirt got somewhere it shouldn't and by disconnecting the front DS, greasing, and reassembling you have cleared the problem up. Drive it around for a couple days and see what happens.
Betcha it's done and solved. If not, we're always here to help!
#6
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Year: 1996
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I wouldn't be too worried about it. Mud gets everywhere and into everything...that's why I personally avoid it like the plague!!
I would suspect some dirt got somewhere it shouldn't and by disconnecting the front DS, greasing, and reassembling you have cleared the problem up. Drive it around for a couple days and see what happens.
Betcha it's done and solved. If not, we're always here to help!
I would suspect some dirt got somewhere it shouldn't and by disconnecting the front DS, greasing, and reassembling you have cleared the problem up. Drive it around for a couple days and see what happens.
Betcha it's done and solved. If not, we're always here to help!
Redwolf
#7
Seasoned Member
It would seem more likely to me that it was a rock between the backing plate and rotor, like dans said. Or something like that. Sure it could be on or in a U Joint.
After mudding, it's good practice to give everything a good hosing, then regrease all your components to push the mud/water out.
Is it still making the noise?
After mudding, it's good practice to give everything a good hosing, then regrease all your components to push the mud/water out.
Is it still making the noise?
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#8
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Year: 1996
Model: Cherokee
Engine: 4.0
It would seem more likely to me that it was a rock between the backing plate and rotor, like dans said. Or something like that. Sure it could be on or in a U Joint.
After mudding, it's good practice to give everything a good hosing, then regrease all your components to push the mud/water out.
Is it still making the noise?
After mudding, it's good practice to give everything a good hosing, then regrease all your components to push the mud/water out.
Is it still making the noise?
Redwolf
#9
Seasoned Member
Then frankly I would just stop worrying about it. Keep on keepin on.
You drove through mud. It got somewhere and made noise. You inspected things, moved them and greased. Now there is no sound. You're good.
You drove through mud. It got somewhere and made noise. You inspected things, moved them and greased. Now there is no sound. You're good.
#10
Beach Bum
What is often overlooked when crossing streams and mudding, is that the axle tubes can pack up with silt/debris. If the plastic shield is missing, than small rocks can get in there also.
But my first guess would be what Dans98xj replied.
But my first guess would be what Dans98xj replied.
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