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Unread 11-27-2013, 06:32 AM   #1
j4bs4209333
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Anyone want to play name that noise with me?

Here's an audio clip of my 01 WJ with Quadra Drive. Anyone ever hear this groaning noise when slowing down? I'm thinking it's the front differential but not sure. There's some background noise but you should be able to hear the groaning. I raised both front tires and spun them each by hand and they are very hard to spin. When I spin one tire the other side goes backwards and the driveshaft spins along with them. When I get to a certain point spinning the driver's side tire it gives more resistance and the driveshaft and other tire will stop spinning along with it for a split second then follow along again. I'm not familiar with the quadra drive system so I am not sure what's wrong. I hear it when slowing down and from 60-75mph it's loud.


https://soundcloud.com/j-forbes/sound-05-region-000

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Unread 11-27-2013, 07:50 AM   #2
cubalz
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My money says bad u joints in one or both axle shafts.
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Unread 11-27-2013, 08:46 AM   #3
MadderThanMax
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Or TC...
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Unread 11-30-2013, 10:10 AM   #4
j4bs4209333
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Took it to a mechanic and he says bad right front wheel bearing. I'm not sure I'm convinced though.
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Unread 11-30-2013, 11:21 AM   #5
new2site
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Sounds like an F-15 jet flying overhead
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Unread 11-30-2013, 11:28 AM   #6
j4bs4209333
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Quote:
Originally Posted by new2site View Post
Sounds like an F-15 jet flying overhead
Lmao that clip was taken while I was doing about 20mph coming to a complete stop. You should hear it at 65mph. I just crank up the radio.
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Unread 11-30-2013, 12:15 PM   #7
STGjeep
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I'm actually having the same problem, only you don't hear it below 45 mph at all and there is a slight high speed vibration along with it. I can't tell if it from the rear or front though, I feel mine under my seat. I have a Tom Wood's double cardan front driveshaft with 6" of total lift. Really irritating.
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Unread 11-30-2013, 12:50 PM   #8
j4bs4209333
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Quote:
Originally Posted by STGjeep View Post
I'm actually having the same problem, only you don't hear it below 45 mph at all and there is a slight high speed vibration along with it. I can't tell if it from the rear or front though, I feel mine under my seat. I have a Tom Wood's double cardan front driveshaft with 6" of total lift. Really irritating.
Mine sounds like that winding down noise at low speed when stopping. At 50-65mph it's loud and I can also feel vibration for lack of better words. It's not a real shaking type of vibration, the only way I can describe it is that it's almost like a high tension type of vibration, almost like something is wound too tight. I'm sure that doesn't make any sense to anyone except me. I had the mechanic check both my front and rear u-joints and he said they were fine. He told me it's my passenger's side wheel bearing. When I'm at highway speeds and I let off the gas it feels like the Jeep slows itself down quite a bit. I also have a slight binding when cutting the wheel all the way. Mine feels and sounds like it's coming from the front differential dead center front. I'm going to replace the wheel bearing and see what happens. Come to think of it, my mother's Envoy had the same type of vibration and slight binding, but 10x worse and it was the 2 front wheel bearings.
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Unread 11-30-2013, 07:09 PM   #9
STGjeep
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Quote:
Originally Posted by j4bs4209333 View Post
Mine sounds like that winding down noise at low speed when stopping. At 50-65mph it's loud and I can also feel vibration for lack of better words. It's not a real shaking type of vibration, the only way I can describe it is that it's almost like a high tension type of vibration, almost like something is wound too tight. I'm sure that doesn't make any sense to anyone except me. I had the mechanic check both my front and rear u-joints and he said they were fine. He told me it's my passenger's side wheel bearing. When I'm at highway speeds and I let off the gas it feels like the Jeep slows itself down quite a bit. I also have a slight binding when cutting the wheel all the way. Mine feels and sounds like it's coming from the front differential dead center front. I'm going to replace the wheel bearing and see what happens. Come to think of it, my mother's Envoy had the same type of vibration and slight binding, but 10x worse and it was the 2 front wheel bearings.
Well let me know how it goes, don't want to start replacing parts for the sake of replacing parts.
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Unread 12-01-2013, 12:43 AM   #10
nolimitssjca
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Just for fun, check the cable that runs from the 4hi-4lo selector to the transfer case. It has a clip that attaches to a bracket on the transmission. if this comes loose it can drag on the front axle and transfer lots of noise into the cabin.
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Unread 12-08-2013, 09:31 PM   #11
j4bs4209333
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Not sure if MadderThanMax meant transfer case or torque converter, but if he meant the transfer case he got it. I pulled the front ds thinking it was the u-joints. After it was out I spun the front diff input shaft by hand and it spins freely. Then I spun the front output shaft on the transfer case and it spins a couple spins then binds up and is very hard to turn. I left the front ds out and I am now the proud owner of a very quiet 2x4 Grand Cherokee. FML. I'm going to find a cheap junkyard transfer case and have it swapped out. Does anyone know whether or not I can change it over to a selec trac and if so is it a direct bolt on? I'm not a big fan of full time 4x4 and it's a perfect reason to swap if I can.
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Unread 12-09-2013, 06:58 PM   #12
multmigs
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http://www.jeepforum.com/forum/f310/...d-swap-510546/

seems pretty straight forward
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Unread 12-10-2013, 06:37 AM   #13
j4bs4209333
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Originally Posted by multmigs View Post
Thank you for the link. That will help a lot.
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Unread 12-10-2013, 06:40 AM   #14
j4bs4209333
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One last question. When I go to the junkyard to find a replacement is there anything I should specifically look for? I assume I should try to turn the front and rear output shafts by hand to check for binding. I know to check and make sure it's got fluid in it. I also know it's very common for the output shaft seals to leak. Should I be weary of one that has a leaking output seal? Any other way to know if a part is good or not? I know most places warranty them, but I really don't want to install it twice. Thanks again for all your help.
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Unread 12-11-2013, 03:58 PM   #15
Amadauss
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Go to rock auto or someplace like that. You can get wheel bearings for 12 to 15 dollars. Why go to a junk yard.
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