Join Date: Jun 2008
Location: San Francisco
Feedback Score: 0 reviews
Subaru has a fix - for a small number of cars which had some type of suspension bushing or alignment issue causing a strong vibration. However the first check is to make sure the tires are not the cause given any car will have a bad vibration if the tires are junk. The Continental tires are terrible at holding balance and mine at 40K are complete and utter garbage with one tire thats egg shaped.
Replacing them with BFG touring tires soon. Our car was shake free till the tires lost balance about every 9000 miles and the local tire shop would need to make very large changes to the weights on all 4 tires which they agreed was odd and not normal for tires that were of decent quality etc.
As for cupping AWD you need to rotate the tires its simply a must or you end up with the front tires getting worn pretty badly on the outer shoulders and can get cupping if the alignment is off a tad. My Sequoia is the same way the tires need to be rotated on a fairly regular basis to keep them all wearing even.
Have a local respected tire shop balance your current tires and ask for the details on what it took to get them balanced etc. ROTATE your tires front to back if you have not done it!
If you have a tire like I do which is not round - make sure it stays on the rear given when on the front it will shake the steering wheel regardless of being balanced or not.
Start researching your tire replacement choices even at 30K the Continentals are pretty lousy tires so not like your loosing much by replacing them before winter gets bad.