SC430 - 2nd Gen (2001-2010)

need help with suspension

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Old 07-21-11, 12:05 PM
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irokdastar
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Default need help with suspension

When i drive above 40 mph . the steering wheels starts to shake really bad . and it keeps jumping to the left. i did an alignment and nothing. it really feels like the front end will get loose if i dont pay attention to the steering wheel. There is also a sqweek from the front end. what do you guys think it is?
Old 07-21-11, 12:41 PM
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coolo88
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Check your tires, the squeak could be bearings
Old 07-21-11, 12:47 PM
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irokdastar
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tires are fine . air is good and got them balanced.
Old 07-21-11, 01:25 PM
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Poqman
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balance has been the source of the vibration problem for many of our cars. Was it road forced balanced using the Hunter road force machine? What kind of tires are you running? (rft or regular) Do your tires have problems with flat spots? Could you have bent a wheel?
Old 07-21-11, 01:25 PM
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jerzylexus
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my car is doing the exact same thing. i think i might have a bent rim. im waiting on my gspiders but im getting the lca bushings steering rack bushings n sways done on sat. ill report back
Old 07-21-11, 01:33 PM
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irokdastar
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I have regular tires. I dont have any flat spots on them. I had them balanced not road forced tested. But still it feels like its the suspension. I have even swapped out the front wheels to the back and same thing. Btw no bent rims
Old 07-21-11, 02:20 PM
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Poqman
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I had this problem at 55. Replaced the shocks with coilovers and road forced balance the tires. Problem is gone now. I would try the road force balance first.
Old 07-21-11, 03:03 PM
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grabber2
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I have the same steering vibrating issue but only on uneven road. The vibration is more obivous with top-down. The vibration is on the steering wheel only. I don't feel vibration on the door handle/dash board/floor. I believe it have to do with the whole steering setup. I see thread that other SC owner states it reduce vibrating after replacing the brushing.
Old 07-23-11, 07:54 AM
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irokdastar
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any one know where i can ge my tires road forced balanced in brooklyn? my tire guy doesnt have a road force machine
Old 07-23-11, 08:27 AM
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Poqman
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I saw this same question on a BMW M3 forum. Their response was
20th Ave and 60th Street , there is a tire shop that does have a Road Balance machine... Im not 100% sure if there employees are trained to actually use the equipment the way its supposed to be used.

Tire Empire on Staten Island also has one
Also, try this site for a complete listing:
http://www.gsp9700.com/search/FindLocations.cfm
Hope this helps.

Last edited by Poqman; 07-23-11 at 08:39 AM.
Old 07-25-11, 09:33 AM
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irokdastar
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thanks pogman
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