Back when we were still sheltering in place in Arizona the S.O. noticed the Focus had a minor vibration in the front end. It wasn't bad, really only noticed it at highway speeds, but it was there. We'd been talking about investing in new tires but decided it would be good to first figure what was causing the vibration. After all, depending on what it was it could cause the tires to wear unevenly. So he tried tracking down the problem. No luck.
I wasn't keen on the idea of driving the Focus the 2000 miles back to Michigan either on almost bald tires or with a mystery shimmy, but then the Guppy died. We wound up renting a U-Haul and tow dolly to get home. If we'd had the Guppy we would have convoyed. Dragging the Focus instead of driving it meant we acquired more procrastination time. Every so often this summer the S.O. would talk about bringing the Focus over to the neighbor's (a person who was a professional mechanic for many years and has an actual lift in his garage so it would be possible to get a real look at the various pieces and parts hiding under the car, the stuff that can be hard to get a clear look at with just jack stands) but it didn't happen.
Then Winter hit. Doing local driving on Italian racing slicks didn't bother us much when the pavement was bare, but once it started icing up? Not as much fun, especially on days when the infamous "wintry mix" was falling. So the S.O. coordinated with the neighbor on a good time to bring the car over. They put it up on the lift, did multiple things to do it, and totally failed at finding a mechanical problem. The expert's advice? Keep driving it until it gets worse and then maybe we'll be able to figure it out.
That meant suppressing any qualms we had about uneven tire wear. Yesterday afternoon found us in Marquette at Mr. Tire enjoying a "contactless" transaction. No sitting in the showroom sipping bad coffee. Instead we got to sit in the car while the tires were changed, which was interesting in itself, watching the guys in constant motion (four guys in the service area plus the manager and they did not get a whole lot of breathing time -- as soon as one car left, another was pulled in). It didn't take long and we were on our way.
First thing the S.O. noticed was the annoying vibration seems to be gone. After putting over 70 miles on the car coming home, it appears the vibration never was mechanical. It was one of the tires.
I guess the up side is we're now heading in to winter with brand new tires instead of ones with several thousand miles of wear on them, but it's still a bit annoying to realize we spent six months wondering how much hassle it was going to be to repair the front end when it appears it never needed fixing at all.
We had exactly the same problem. Wheel noise sometimes sounded like one of the tires was flat. The tires were old, but still looked good. Toyota found a questionable wheel bearing and changed it. Still heard the noise on smooth payment. Changed the tires a month ago and the noise is gone.
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