High Speed Vibration Gone!
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Joined: May 2004
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From: San Jose, CA
High Speed Vibration Gone!
Hello. Just wanted to share an experience and a possible solution to others.
For the last four or five months, I have been having some vibration at speeds higher than 70 MPH. This vibration was sometimes felt strong on the steering wheel and sometimes on the accelerator and foot rest, and at rare occasions it seemed to disappear. I initially thought that it was the stretch of highway that I was on (I travel 50 miles on the same highway everyday, (50 round trip)). Then I noticed that the same stretches sometimes put vibration in the foot area and sometimes in the steering wheel, this seems inconsistent with alignment and balance problems (I realized this after getting 2 alignments done and having tires balanced twice).
Searched the internet for people with same problem and found none. I was beginning to think it might be bearings. Then one day, I stumbled on an article on suspension tuning, it had a 350z as the example car and included a small paragraph on how to re install the front strut bar with a comment that it to much tension or compression can slightly affect alignment. A light went off in my head and I decided to check my strut bar. I noticed that the two locking nuts were loose and moveable with my fingers and the black dot of the center nut was not in the above position. I adjusted the strut bar according to article and tested the car.
Amazing results the vibration is now gone!
Now I don't really know if this is the problem or it helped relieve something else.
For the last four or five months, I have been having some vibration at speeds higher than 70 MPH. This vibration was sometimes felt strong on the steering wheel and sometimes on the accelerator and foot rest, and at rare occasions it seemed to disappear. I initially thought that it was the stretch of highway that I was on (I travel 50 miles on the same highway everyday, (50 round trip)). Then I noticed that the same stretches sometimes put vibration in the foot area and sometimes in the steering wheel, this seems inconsistent with alignment and balance problems (I realized this after getting 2 alignments done and having tires balanced twice).
Searched the internet for people with same problem and found none. I was beginning to think it might be bearings. Then one day, I stumbled on an article on suspension tuning, it had a 350z as the example car and included a small paragraph on how to re install the front strut bar with a comment that it to much tension or compression can slightly affect alignment. A light went off in my head and I decided to check my strut bar. I noticed that the two locking nuts were loose and moveable with my fingers and the black dot of the center nut was not in the above position. I adjusted the strut bar according to article and tested the car.
Amazing results the vibration is now gone!
Now I don't really know if this is the problem or it helped relieve something else.
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