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+--- Thread: Creaking Noise Over Speed Bumps (/showthread.php?tid=934)
Creaking Noise Over Speed Bumps - tetra - 09-09-2009
Hi guys, so the FRPP suspension kit is installed with a 1.5" drop. Everything is smooth except when I go over speed bumps or hit a huge bump there is a creaking noise coming from the back. I wanted to know what you guys think it could be? My car has a 20mm rear sway bar that comes stock. Do you think the bushings might just need greasing? The brackets for the RSB were loosened for the install. Other things that have come to mind is that maybe something is over-torqued? I have no clue, but I guess it's hard for you guys to solve without hearing it.
Thanks.
--Chad
Creaking Noise Over Speed Bumps - GFXjamie - 09-09-2009
for the creak in the rear, it will be your sway bar, most likely needs to be greased i would assume, mind does it but thats only because it comes with these crazy solid bushings and isnt greasable... only barely does it over bigger speed bumps. i would crawl uneathe, make sure end links are good and tight, make sure sway bar brackets in the middle are tight and check the bolts you removed at each spring perch from when you dropped the rear springs and make sure nothing is loose, sometime stuff isnt quite tight enuff and will loosen off a tad, happened to me my FIRST install time, second set of parts no so much :rolleyes:
hope that helps you
also throw some grease on that 20mm monster haha
Creaking Noise Over Speed Bumps - Canadian ST - 09-09-2009
My 08 had the same noise, though mine was the exhaust hangers.
Spinal could be write to, Try the bushings first and see what happens.
Creaking Noise Over Speed Bumps - tetra - 09-09-2009
I don't think it's the exhaust hangers. I have CFM Polyurethane ones. They are strong mofos. It's gotta be suspension related since it started happening only after the install. We shall see!
I think you meant Jamie :P
Spinal has an avatar that's similar so I can see the confusion LOL
Creaking Noise Over Speed Bumps - Canadian ST - 09-09-2009
tetra,Sep 8 2009, 08:28 PM Wrote:I don't think it's the exhaust hangers. I have CFM Polyurethane ones. They are strong mofos. It's gotta be suspension related since it started happening only after the install. We shall see!
I think you meant Jamie :P
Spinal has an avatar that's similar so I can see the confusion LOL
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Yup I ment Jamie... :ph34r:
So how do you like the way your car handles? big improvement I guess.
Creaking Noise Over Speed Bumps - tetra - 09-09-2009
Hellz yeah, I love taking those on ramps heh.
The drop really exposed my tires though, these stock pieces of crap!
Creaking Noise Over Speed Bumps - OAC_Sparky - 09-09-2009
When you put the springs in did you leave a gap between the end of the spring and the stops in the spring pocket?
Creaking Noise Over Speed Bumps - GFXjamie - 09-10-2009
a shop did the install of the suspension so he couldnt tell you details of it i would assume.
Creaking Noise Over Speed Bumps - tetra - 09-10-2009
GFXjamie,Sep 9 2009, 09:40 AM Wrote:a shop did the install of the suspension so he couldnt tell you details of it i would assume.
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Yup, exactly. I don't know if it's my eye, but the rear looks a tad lower than the front. I know the drop in the back was 1.75" compared to 1.5" in the front, but the read was higher than the back at stock. It this normal?
Creaking Noise Over Speed Bumps - Scourge - 09-10-2009
If you've got the poly exhaust hangers that could be the source of the creak. Polyurethane tends to get noisy if not greased well, even exhaust hangers.
Creaking Noise Over Speed Bumps - GFXjamie - 09-10-2009
tetra,Sep 9 2009, 10:04 AM Wrote:GFXjamie,Sep 9 2009, 09:40 AM Wrote:a shop did the install of the suspension so he couldnt tell you details of it i would assume.
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Yup, exactly. I don't know if it's my eye, but the rear looks a tad lower than the front. I know the drop in the back was 1.75" compared to 1.5" in the front, but the read was higher than the back at stock. It this normal?
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on my car when i did eibach the first time around with the prokit, it was 1.2 front and 1.6 rear, rear looked a lot lower then front did especially with regards to wheel gap so im sure its fine.
as for the exhaust hangers making the noise, i really doubt it only because they dont have all that much movement and would be making noise all the time when you accelerate and get movement in the exhaust. if its just the extension of the suspension over speed bumps etc, then its bound to be something in the rear end like your sway bar
Creaking Noise Over Speed Bumps - tetra - 09-10-2009
Yup, that's what I think too (and hope).
Those poly bushings are mad strong, they hardly even move lol