When starting off cold, one of the wheels seems like it's really out of balance, enough to cause the car to vibrate at anything over 60 mph. I double checked all the lugnuts with a torque wrench to 90 ft/lbs and everything is ok. I also looked at all the lead balancing weights to see if some might have falled off, and nothing. The problem does seem to fade away after driving for a couple of miles, but it's there again after it's been sitting overnight. It seems like it's slowly going away over time, as the vibration gets less and less. I mentioned it to my dealer and they wanted me to bring it in to check the wheel balancing, but by the time I made it there, the problem had gone away, indicating that it probably is not the wheel balancing.

I'm thinking it may be either the wheel bearings or a caliper dragging. I've checked to see if any of the wheels got abnormally hot after a long drive, and they all seemed about the same temp. I'm wondering if it's just something breaking in/loosening up, as I only have 500 miles, and it seems to be going away. Anyone else experience this kind of thing? Should I be concerned?

Edit: I have also checked the tire pressure (when cold) and set all four to the spec on the door sill.

 

the tires flat spot after sitting over night.... it takes several miles for them to heat up and go away.... the bridgestones are bad for this...

if you checked with a tq wrench at 90lbs you are doing it wrong.. proper tq is 108ft lbs.

lead weights ? you were looking for them where????

you dont post where you are from...why...

could you photo the tire pressure on you door sill as mine does not have them listed...

trying to help..

beers

 

The flat spotting thing does seem to make sense. I have the Dunlops, though. I'm sure if it happens to the Bridgestones, it can happen to the Dunlops too.

Where did you get 108 ft/lbs? I looked through the manual and didn't see anything, so I went with 90 ft/lbs from my old 6 (which was in the manual).

The lead weights I was refering to were the lead balancing weights on the inside of the rim. If you DON'T have them, you've got problems, or perfectly round/balanced rims, but not likely.

I didn't think it would matter whether I posted where I'm from (NM).

Attached is a picture, although a crappy one, of the tire sticker.

Again, the flat spotting thing could explain what's going on. Thanks for your help.

 

never seen that sticker before. which door was it on...

as to the 108 ft lbs... it was a tsb that came out a good while back... to stop low speed clicking of the wheels..

beers

 

There is actually two stickers, one is what is pictured, and the other is different and blank. They are located above the driver's side striker, on the suicide door. I'll torque them to 108 ft/lbs. Thanks again.

 

yup.

beers