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vibration at 55 mph plus

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Old 05-03-2017, 10:52 AM
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Default vibration at 55 mph plus

I recently lowered my 2008 s6. every since then my car has had a shimmy that comes in and out at 55 mph and faster. I have replaced tie rod ends sway bar links, checked wheel balance. I can't figure out what is going on.....any thoughts?
The car has 101,000 miles and runs like a top. Drove fine at stock height and with stock wheels. New tires and wheels on it now.
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Old 05-03-2017, 10:56 AM
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Originally Posted by josh caldwell View Post
I recently lowered my 2008 s6. every since then my car has had a shimmy that comes in and out at 55 mph and faster. I have replaced tie rod ends sway bar links, checked wheel balance. I can't figure out what is going on.....any thoughts?
The car has 101,000 miles and runs like a top. Drove fine at stock height and with stock wheels. New tires and wheels on it now.

Here is the car
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Old 05-03-2017, 11:13 AM
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These are the most common causes of vibration in this order:

1. wheel(s)s out of balance (force balance on Hunter balancer)
2. out of round or defective tire(s)
3. bent wheel from a pothole (not visible to the eye)
4 worn control arm bushings

Was an alignment done after the suspension and new wheel changes? Are any hub spacers being used?
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Old 05-03-2017, 11:16 AM
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was aligned, no spacers, I have swapped out all four wheels and tires. The shimmy is very wierd is shakes, stops and shakes, not like a constant like a balance issue.
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Old 05-03-2017, 11:17 AM
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Originally Posted by josh caldwell View Post
was aligned, no spacers, I have swapped out all four wheels and tires. The shimmy is very weird is shakes, stops and shakes, not like a constant like a balance issue.
it comes in and goes out. but in a rythmic way if that makes sense.
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