Vibration

[That986]

Originally Posted by AZ986S

* Control arms and bushings look good. Have not replaced any of them.

I bet they aren't. I've replaced most of mine over this winter with the exception being the front droplinks.
I had the same vibration as you. Turned out to be a combination of worn control arm bushings and brake discs that had gathered material. The thing that made the biggest difference though was the control arms, vibration pretty much eliminated.

When we replaced them you could as near as damn it fold the bushes in half on the old ones, they were toast. if you just had a look at them though they were fine.

[algiorda]

Originally Posted by That986

When we replaced them you could as near as damn it fold the bushes in half on the old ones, they were toast. if you just had a look at them though they were fine.

How the heck do you test these for wear whilst they are still on the car? Is there a testing method?

[That986]

Originally Posted by algiorda

How the heck do you test these for wear whilst they are still on the car? Is there a testing method?

Nope, you can't. You can take them off to inspect but that's about it. The bushes on the arms should be solid, when they came off on my car you could EASILY move them around with one finger.

[AZ986S]

Originally Posted by That986

I bet they aren't. I've replaced most of mine over this winter with the exception being the front droplinks.
I had the same vibration as you. Turned out to be a combination of worn control arm bushings and brake discs that had gathered material. The thing that made the biggest difference though was the control arms, vibration pretty much eliminated.

When we replaced them you could as near as damn it fold the bushes in half on the old ones, they were toast. if you just had a look at them though they were fine.

New brake rotors 1k miles ago.
So maybe I should look at the control arms...

[nicecar]

Maybe go with a new set of tires and a good 4 wheel alignment. Balance of tire important but more importantly could any of the rims be out of round which no matter what will cause vibration.3000 rpm vibration is or was the motor mount. Disclaimer....Educated guess made from person who has driven down the same vibration road you are on. I dont think the tires are the culprit unless balanced incorectly but I think you said tires are do, so..... maybe start there, before control arms.Good Luck

[BYprodriver]

Originally Posted by AZ986S

New brake rotors 1k miles ago.
So maybe I should look at the control arms...

How old are your tires? Check the DOT dates & check the sidewalls & tread for cracking. If they sit in sunlight they get hard sooner, AZ sun will do that.