XJ XJ8 / XJR ( X308 ) 1997 - 2003

New Year , New Noise ?!

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Old Apr 1, 2021 | 12:33 AM
  #1  
King Charles's Avatar
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Default New Year , New Noise ?!

Clunk,springy thump presents driver side rear in correlation to road surface. All shocks,mounts,rubbers are replaced within 8K miles.

Presents @
17-18 seconds
25-26
48
1:17-1:20
1:40-1:41
2:10-2:14


 
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Old Apr 1, 2021 | 07:20 AM
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KC,

That is definitely a significant noise, and by that I don't mean it is significantly loud, but that it indicates something is significantly loose!

I would think that a good visual/hands-on inspection on a vehicle lift should reveal what it is................although I really can't think what it can be considering all the recent shock and bushing work that has been done.

Maybe the first step would be to jack the car up and remove the driver-side rear wheel and do an initial visual inspection.........possible broken weld on the bottom of the shock????

CK
 

Last edited by Carnival Kid; Apr 1, 2021 at 07:24 AM.
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Old Apr 1, 2021 | 08:17 AM
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Yes I know something's not right, as I cherish the silence usually present lol. I'm knee deep refurbishing some inherited property so I'm going to put it in my fav shop.
 
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Old Apr 1, 2021 | 07:33 PM
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She's booked @ the best local shop Wed. !
 
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Old Apr 2, 2021 | 12:24 PM
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Sounds like one of the rear exhaust hanger donuts is broken or missing allowing the exhaust system to bang around. But . . . really hard to tell: need to determine exactly where it is coming from: right, left? How far back? But does not (from this recording, at least) sound like suspension . . .
 
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Old Apr 2, 2021 | 12:55 PM
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Yes, the more I think about it the more likely it seems to be an loose exhaust problem as Jim suggests.
 
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Old Apr 2, 2021 | 11:49 PM
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Originally Posted by Jhartz
Sounds like one of the rear exhaust hanger donuts is broken or missing allowing the exhaust system to bang around. But . . . really hard to tell: need to determine exactly where it is coming from: right, left? How far back? But does not (from this recording, at least) sound like suspension . . .
Originally Posted by King Charles
Clunk,springy thump presents driver side rear
I'll check exhaust hangers this weekend.
 
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Old Apr 3, 2021 | 03:18 PM
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Are you sure you didn't forget to let your girlfriend out of the trunk?

If that's been cleared, then I'm also on the exhaust hanger scenario.
 
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Old Apr 4, 2021 | 07:06 AM
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Originally Posted by Highhorse
Are you sure you didn't forget to let your girlfriend out of the trunk?

If that's been cleared, then I'm also on the exhaust hanger scenario.
She's in Cuba last I heard, (winky wink) lol.
 
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Old Apr 4, 2021 | 08:15 PM
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Originally Posted by King Charles
She's in Cuba last I heard, (winky wink) lol.
Sounds like she's in the trunk that you hear....LOL
 
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Old Apr 7, 2021 | 06:25 AM
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Didn't see anything awry w/ hangers but on the way to the shop.
 
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Old Apr 11, 2021 | 02:33 AM
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Transmission mount maybe
 
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Old Apr 24, 2021 | 08:02 PM
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Did you get any closer to solving this issue?

It sounds like 2 different noises.

The most obvious noise sure sounds just like a front upper shock mount that’s gone bad even though you state it’s from the rear. I’d still check the rear upper shock mounts for wear even though it was done 8K miles ago.

The other one could either be the heat shield over the center mufflers breaking off and tapping the side of the muffler or a baffle inside one of the mufflers. I would make a fist and beat the underside of the rear mufflers to diagnose that noise. A rubber mallet can also be used but you really need it on a lift in my opinion.
 
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Old Apr 26, 2021 | 11:21 AM
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Shop only stated "rear bushing" nothing specific.
 
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Old Aug 10, 2021 | 03:24 AM
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Originally Posted by Addicted2boost
Did you get any closer to solving this issue?

It sounds like 2 different noises.

The most obvious noise sure sounds just like a front upper shock mount that’s gone bad even though you state it’s from the rear. I’d still check the rear upper shock mounts for wear even though it was done 8K miles ago.

The other one could either be the heat shield over the center mufflers breaking off and tapping the side of the muffler or a baffle inside one of the mufflers. I would make a fist and beat the underside of the rear mufflers to diagnose that noise. A rubber mallet can also be used but you really need it on a lift in my opinion.
Solved sir !

https://www.jaguarforums.com/forum/x...2/#post2421814
 
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