I would still focus on your tires. 9x out of 10 that's what it turns out to be, and there are a number of issues that can cause tire vibration. Most tire shops want to get the customer in....then out, and the initial tire balance may not be all that great. Could have been done by the 'new guy' when you bought your tires. And also, tire balancers are supposed to be re-calibrated periodically and many shops don't do it. It takes time to do. I asked at the Walmart I went to a while ago (they did a terrible job balancing) and nobody could remember the last time their balancers were re-calibrated. And the guy doing my tires was clueless. So if a shop re-balanced your tires, I wouldn't put much stock in that.
You need some real troubleshooting. I would go back to the shop and see if they have a Hunter Road Force balancer. That's a TOTL tire balancer made by Hunter ...pretty much the best in the biz. Usually every [good] tire shop has one. But like Walmarts and many discount shops don't. If they don't have one ask if they will reimburse you if you take it to a shop which has one. Or else call the tire mfgr and ask if they have a dealer nearby who has one ...and if you can go there for troubleshooting (on their dime).
This balancer, It puts about 1200# of pressure on your tire with a hydraulically actuated drum as the tire is rotating. That's the secret. There's a sensitive sensor on the drum. It's a sophistocated machine and using sensors and software, it can determine exactly (as your tires are now) what the issues are: Out of roundness (and how much), Out of balance (and how much), Bent rim (and how much), Broken chord (where), etc. After that an experience tech
who knows how to use the machine [key words there] should be able to tell you if they found something. Tires can start out pretty round and can change shape after a while too.
Plus, if the tires are just a little out of round (most are a little) this balancer can do a much better job of balancing than most of the balancers in the industry. I always have my tires Road Force balanced. They they ride like butter. The GM garage near me does them pretty reasonably. Every GM dealer has to have one ...probably every Chrysler dealer too. The GM shop by me ONLY installs & balances tires using the Road Force balancer. And they will Rim-Match (remember those words) the tires to the rims too. That important to have familiarity, bc if you go to a shop where they don't use that balancer very often (only for occasional troubleshooting), the tech/s might not REALLY know how to use it properly. It takes training and practice. For instance, there's a major tire dealer near me and they've told me before they really don't know how to use the Road Force Balancer they have ...very well. So you want to ask those questions in advance and make sure you get an experienced tech. Like I say, the GM (and probably Chrysler) shops use them all the time.
That's what I would do. Get to the bottom of things. Also check your shocks for any oil leaks.
This video clearly explains why Wheel Balancing alone cannot eliminate all wheel and tyre vibrations.The Hunter Road Force Touch and Road Force Elite vibrati...
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