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Old 01-10-2008, 12:48 PM   #1
hel_st170
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Unhappy st170 knocking from rear end help!!!!

hi ive got an 02 plate st170 with a knocking noise coming from the back end. first of all thought exhaust was loose got that checked, it wasnt the problem, now im not sure. the noise happens when im going slow or over uneven ground.

has anyone else got this problem??????


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Old 01-10-2008, 01:06 PM   #2
IcEMage
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Could be your rear sway bar doing that....mine does it when starting from 1st....I would check and make sure everything is nice and tight back there (what I am going to do when I get home today lol ) Also try a little white grease on the sway bar bushings, I have seen others say that can help.
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Old 01-10-2008, 01:47 PM   #3
hel_st170
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forgot to mention also does it when reversing!!!
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Old 07-14-2014, 01:35 AM   #4
DaveHarvey
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Knocking from rear as though something is loose.

Hi,

I have a similar issue. Over bumps I get a loud knocking noise as though something is loose but I do not have a clue what it is.

I have checked the hatch, wiring at the back, some heat shields, exhaust. Had the wheels jacked up to check for play.

When driving it does sound more the to left rear area. It is driving me mad.

Also I have a rattle/rasp at certain revs, could it be a broken cat bracket?

Thanks
Dave
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