Horrible Annoying Rear Suspension Clunk
#1
Horrible Annoying Rear Suspension Clunk
This clunk drives me insane. its steady on the most smoothest road if you're doing 55mph and its horrible on the smallest bumps on the road. Especially how horrible the roads in south carolina are. tires are wearing inside. Can anyone pinpoint the problem?
#2
Could be a few things back there, but tires wearing on the inside indicate something isn't sitting right. It sounds like it's got a bit of a clank to the clunk as well. Jack the car up, wheel off the ground, and press in on the top, bottom, left and right of the wheel and see if there's any movement in either way. If it's wearing on the inside, I'm inclined to think there might be excessive play in the outer u-joint of the halfshaft. If you are able to push the wheel in on any of the corners, have someone press on it while looking at the backside. I'll link a video that shows mine that shows exactly what I mean. Bear in mind, mine is excessively bad, but you'll get an idea of what I mean.
It could also be something in the upper shock mount area, but the only way to know would be to pull the shock out altogether, which takes a little more time and steps. I suppose if it broke enough up there where the shock wasn't being supported properly, then it could cause the shock itself to raise too high while it was sitting, and therefore letting that side "squat" more than it should, leading to inner tire wear.
It could also be something in the upper shock mount area, but the only way to know would be to pull the shock out altogether, which takes a little more time and steps. I suppose if it broke enough up there where the shock wasn't being supported properly, then it could cause the shock itself to raise too high while it was sitting, and therefore letting that side "squat" more than it should, leading to inner tire wear.
#3
#4
That's what clued me into mine as well. I had a slight clunk sometimes shifting forward to reverse from that corner, but otherwise, hardly made a peep (or my radio was up too loud to notice it). Hopefully it'll be easy to spot whatever your issue is.
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omgimali (06-07-2018)
#5
#7
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#8
Your shocks may still be good (mileage?) but you certainly need to replace the three foam "doughnuts" (small, medium and large) at the top. Another source of knocks can be the shock lower bushings which you can inspect when you have everything out.
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omgimali (06-08-2018)
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omgimali (06-08-2018)
#11
#12
https://www.jaguarforums.com/forum/x...8/#post1389438
The upper spring isolator is P/N MMD3565AA ordered off Ebay for $36 each.
The upper shock isolator is P/N CAC949350 ordered from Motorcars LTD for $9.05 each plus shipping.
The lower shock isolator is P/N CAC949465 ordered from Motorcars LTD for $16.53 each plus shipping.
The bottom shock mount is P/N CCC6782, but I didn't replace mine as they didn't look bad and can be replaced on the car if need be. The shocks are original and new shocks come with new lower shock mounts, so I didn't think it was worth it.
The upper shock isolator is P/N CAC949350 ordered from Motorcars LTD for $9.05 each plus shipping.
The lower shock isolator is P/N CAC949465 ordered from Motorcars LTD for $16.53 each plus shipping.
The bottom shock mount is P/N CCC6782, but I didn't replace mine as they didn't look bad and can be replaced on the car if need be. The shocks are original and new shocks come with new lower shock mounts, so I didn't think it was worth it.
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omgimali (06-09-2018)
#15
Omgimali, this link may help too...................
https://www.jaguarforums.com/forum/x...-video-201680/
.
https://www.jaguarforums.com/forum/x...-video-201680/
.
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omgimali (06-11-2018)
#16
I had a thumping problem similar to your a few years ago. It turned out to be the upper shock nut was loose. I found this because I replaced the shocks thinking it was bad.
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omgimali (06-11-2018)
#17
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