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Unread 03-11-2015, 08:30 PM   #1
Grsz11
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Lots of noise when coasting and braking

I am getting a lot of clanking when coasting and braking at least at low speeds. (Can't tell at high speeds over road noise). I also have a decent amount of slack in the driveshaft when stepping on the gas, though I know some is normal. Any thoughts?

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Unread 03-11-2015, 09:03 PM   #2
lfhoward
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Check the end of the front driveshaft where it connects to the transfer case. The rubber boot has most likely broken, shot out all the grease, and grit from the road has probably damaged the CV joint. People have described this as a rattling chains or dragging chains sound. The CV end can be ordered and replaced for about $45 from www.driveshaftparts.com.

I am assuming the noise is not coming from your brakes, but from under the Jeep, right?
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Unread 03-12-2015, 05:57 PM   #3
Grsz11
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So I got a wash and now no noise. Problem solved or not?
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Unread 03-12-2015, 10:29 PM   #4
Gageraid
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Problem solved if ice and snow in the wheels/brakes was the original issue.
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Unread 03-23-2015, 04:36 PM   #5
Grsz11
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Does someone have a pic of a healthy undercarriage and rear driveshaft? With labels would be great. Trying to narrow this down but I'm not quite the adequate size to crawl under with no jack.
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Unread 03-25-2015, 07:04 PM   #6
Grsz11
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So its coming from the rear driverside wheel. Now in addition to what's kinda like a wobble is a squeak like a spring mattress. Still only when coasting and slowing at low speeds. Whatever it is, it sounds expensive.
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Unread 03-25-2015, 07:10 PM   #7
yzf125
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Sounds like a rear universal joint on the drive shaft to me.
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Unread 03-25-2015, 07:46 PM   #8
Grsz11
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Quote:
Originally Posted by yzf125 View Post
Sounds like a rear universal joint on the drive shaft to me.
What is involved with replacing? I don't have the space or equipment, so what can I expect to be charged? What should I look for if I stick my head down there?
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Unread 03-26-2015, 05:46 AM   #9
yzf125
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I would suggest that you take it to a garage and they can easily check it out for you, Its not a costly repair at all if it needs it and very easy to do but best way to test if its bad is on a lift. Just Looking at it wont tell you if its bad you have to manually inspect it.
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Unread 03-26-2015, 07:39 PM   #10
Grsz11
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Dropped at the dealer to have looked at. I really hate to leave it there if I'm not because they'll tell me it needs a new flux capacitor but it has turned to a pretty violent vibration now. FML. If it is a bad joint does anything have to be replaced at the same time? Any ballpark?
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Unread Yesterday, 04:00 PM   #11
Grsz11
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Dealer says front driveshaft needs replaced, fortunately my extended service contract that I have never used and expires in three months will actually pay up so I just owe a $100 deductible. I asked about the wheel because there was definitely something going on there and they say they did something when they rotated the tires a few weeks back that they'll fix. They weren't going to say anything if I hadn't asked. But that got me wondering if there is really anything wrong with the driveshaft in the first place or could the noises have been coming from both places? I'm certainly pessimistic when it comes to the dealer.
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Unread Yesterday, 04:56 PM   #12
lfhoward
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Quote:
Originally Posted by lfhoward View Post
Check the end of the front driveshaft where it connects to the transfer case. The rubber boot has most likely broken, shot out all the grease, and grit from the road has probably damaged the CV joint. People have described this as a rattling chains or dragging chains sound. The CV end can be ordered and replaced for about $45 from www.driveshaftparts.com.

I am assuming the noise is not coming from your brakes, but from under the Jeep, right?
If it's the driveshaft then it is most likely this ^^^^^^
You can check that for yourself by crawling under and inspecting the boot on the transfer case side. And if it is, then you don't need a whole new driveshaft, just the CV joint at the TC side.
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