riordamp Posted June 2, 2005 Share Posted June 2, 2005 I have looked at bunches of posts on this site regarding vibrations and I am not sure if any of them describe my situation. I have a 1995 sc400 that gives a fairly smooth ride with no vibrations when the road is fairly smooth. If the road has imperfections I get a vibration through the steering wheel. I am not talking about some back road full of pot holes. This will happen on a super highway for streaches of road and then it will go away when the road surface gets better. I replaced the struts, lower control arms and had the tires balanced at Lexus. All of these things improved the problem but did not make it go away. I am ALMOST certain that it is not coming from the drive train. If it were the drive train I don't think it would come and go on the different surfaces. Driving back and forth to work, I know the parts of the raod where the vibration will start. I am not talking about a violent shimmy but it is a vibration that you would not expect from any car much less a lexus. I love the car when it is not vibrating and want to make some cosmetic repairs to improve the condition. Until I get rid of the vibration i am not ready to start with the other upgrades. The car was driven in Florida by the first owner and I have had the car in Virginia for the last six years. The road conditions are pretty good where I live and my sense is that they were pretty good in Florida. I am at my wits end and would appreciate any suggestions as to what I might try next. HELP!! Quote Link to comment Share on other sites More sharing options...
JDOwen2 Posted June 2, 2005 Share Posted June 2, 2005 Could be wheel bearings, tire/wheel imbalance, steering rack bushings to name a few. Quote Link to comment Share on other sites More sharing options...
riordamp Posted June 3, 2005 Author Share Posted June 3, 2005 Could be wheel bearings, tire/wheel imbalance, steering rack bushings to name a few. ← I don't think a have any play in the steering wheel. Does that still make the steering rack bushings a possibility? Can I repace just the bushings or do I have to buy the entire rack? Is it a difficult expensive job? Thanks for the help! Quote Link to comment Share on other sites More sharing options...
Lextasy4 Posted June 24, 2005 Share Posted June 24, 2005 It could be your lower control arm bushings as well.. this tends to make the wheel jerk or move at every bump if they are shot Quote Link to comment Share on other sites More sharing options...
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